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| (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){ | |
| (function (global){ | |
| /** | |
| * @license | |
| * lodash 3.10.1 (Custom Build) <https://lodash.com/> | |
| * Build: `lodash modern -o ./lodash.js` | |
| * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/> | |
| * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE> | |
| * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors | |
| * Available under MIT license <https://lodash.com/license> | |
| */ | |
| ;(function() { | |
| /** Used as a safe reference for `undefined` in pre-ES5 environments. */ | |
| var undefined; | |
| /** Used as the semantic version number. */ | |
| var VERSION = '3.10.1'; | |
| /** Used to compose bitmasks for wrapper metadata. */ | |
| var BIND_FLAG = 1, | |
| BIND_KEY_FLAG = 2, | |
| CURRY_BOUND_FLAG = 4, | |
| CURRY_FLAG = 8, | |
| CURRY_RIGHT_FLAG = 16, | |
| PARTIAL_FLAG = 32, | |
| PARTIAL_RIGHT_FLAG = 64, | |
| ARY_FLAG = 128, | |
| REARG_FLAG = 256; | |
| /** Used as default options for `_.trunc`. */ | |
| var DEFAULT_TRUNC_LENGTH = 30, | |
| DEFAULT_TRUNC_OMISSION = '...'; | |
| /** Used to detect when a function becomes hot. */ | |
| var HOT_COUNT = 150, | |
| HOT_SPAN = 16; | |
| /** Used as the size to enable large array optimizations. */ | |
| var LARGE_ARRAY_SIZE = 200; | |
| /** Used to indicate the type of lazy iteratees. */ | |
| var LAZY_FILTER_FLAG = 1, | |
| LAZY_MAP_FLAG = 2; | |
| /** Used as the `TypeError` message for "Functions" methods. */ | |
| var FUNC_ERROR_TEXT = 'Expected a function'; | |
| /** Used as the internal argument placeholder. */ | |
| var PLACEHOLDER = '__lodash_placeholder__'; | |
| /** `Object#toString` result references. */ | |
| var argsTag = '[object Arguments]', | |
| arrayTag = '[object Array]', | |
| boolTag = '[object Boolean]', | |
| dateTag = '[object Date]', | |
| errorTag = '[object Error]', | |
| funcTag = '[object Function]', | |
| mapTag = '[object Map]', | |
| numberTag = '[object Number]', | |
| objectTag = '[object Object]', | |
| regexpTag = '[object RegExp]', | |
| setTag = '[object Set]', | |
| stringTag = '[object String]', | |
| weakMapTag = '[object WeakMap]'; | |
| var arrayBufferTag = '[object ArrayBuffer]', | |
| float32Tag = '[object Float32Array]', | |
| float64Tag = '[object Float64Array]', | |
| int8Tag = '[object Int8Array]', | |
| int16Tag = '[object Int16Array]', | |
| int32Tag = '[object Int32Array]', | |
| uint8Tag = '[object Uint8Array]', | |
| uint8ClampedTag = '[object Uint8ClampedArray]', | |
| uint16Tag = '[object Uint16Array]', | |
| uint32Tag = '[object Uint32Array]'; | |
| /** Used to match empty string literals in compiled template source. */ | |
| var reEmptyStringLeading = /\b__p \+= '';/g, | |
| reEmptyStringMiddle = /\b(__p \+=) '' \+/g, | |
| reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g; | |
| /** Used to match HTML entities and HTML characters. */ | |
| var reEscapedHtml = /&(?:amp|lt|gt|quot|#39|#96);/g, | |
| reUnescapedHtml = /[&<>"'`]/g, | |
| reHasEscapedHtml = RegExp(reEscapedHtml.source), | |
| reHasUnescapedHtml = RegExp(reUnescapedHtml.source); | |
| /** Used to match template delimiters. */ | |
| var reEscape = /<%-([\s\S]+?)%>/g, | |
| reEvaluate = /<%([\s\S]+?)%>/g, | |
| reInterpolate = /<%=([\s\S]+?)%>/g; | |
| /** Used to match property names within property paths. */ | |
| var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\n\\]|\\.)*?\1)\]/, | |
| reIsPlainProp = /^\w*$/, | |
| rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\n\\]|\\.)*?)\2)\]/g; | |
| /** | |
| * Used to match `RegExp` [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns) | |
| * and those outlined by [`EscapeRegExpPattern`](http://ecma-international.org/ecma-262/6.0/#sec-escaperegexppattern). | |
| */ | |
| var reRegExpChars = /^[:!,]|[\\^$.*+?()[\]{}|\/]|(^[0-9a-fA-Fnrtuvx])|([\n\r\u2028\u2029])/g, | |
| reHasRegExpChars = RegExp(reRegExpChars.source); | |
| /** Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). */ | |
| var reComboMark = /[\u0300-\u036f\ufe20-\ufe23]/g; | |
| /** Used to match backslashes in property paths. */ | |
| var reEscapeChar = /\\(\\)?/g; | |
| /** Used to match [ES template delimiters](http://ecma-international.org/ecma-262/6.0/#sec-template-literal-lexical-components). */ | |
| var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g; | |
| /** Used to match `RegExp` flags from their coerced string values. */ | |
| var reFlags = /\w*$/; | |
| /** Used to detect hexadecimal string values. */ | |
| var reHasHexPrefix = /^0[xX]/; | |
| /** Used to detect host constructors (Safari > 5). */ | |
| var reIsHostCtor = /^\[object .+?Constructor\]$/; | |
| /** Used to detect unsigned integer values. */ | |
| var reIsUint = /^\d+$/; | |
| /** Used to match latin-1 supplementary letters (excluding mathematical operators). */ | |
| var reLatin1 = /[\xc0-\xd6\xd8-\xde\xdf-\xf6\xf8-\xff]/g; | |
| /** Used to ensure capturing order of template delimiters. */ | |
| var reNoMatch = /($^)/; | |
| /** Used to match unescaped characters in compiled string literals. */ | |
| var reUnescapedString = /['\n\r\u2028\u2029\\]/g; | |
| /** Used to match words to create compound words. */ | |
| var reWords = (function() { | |
| var upper = '[A-Z\\xc0-\\xd6\\xd8-\\xde]', | |
| lower = '[a-z\\xdf-\\xf6\\xf8-\\xff]+'; | |
| return RegExp(upper + '+(?=' + upper + lower + ')|' + upper + '?' + lower + '|' + upper + '+|[0-9]+', 'g'); | |
| }()); | |
| /** Used to assign default `context` object properties. */ | |
| var contextProps = [ | |
| 'Array', 'ArrayBuffer', 'Date', 'Error', 'Float32Array', 'Float64Array', | |
| 'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Math', 'Number', | |
| 'Object', 'RegExp', 'Set', 'String', '_', 'clearTimeout', 'isFinite', | |
| 'parseFloat', 'parseInt', 'setTimeout', 'TypeError', 'Uint8Array', | |
| 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap' | |
| ]; | |
| /** Used to make template sourceURLs easier to identify. */ | |
| var templateCounter = -1; | |
| /** Used to identify `toStringTag` values of typed arrays. */ | |
| var typedArrayTags = {}; | |
| typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = | |
| typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = | |
| typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = | |
| typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = | |
| typedArrayTags[uint32Tag] = true; | |
| typedArrayTags[argsTag] = typedArrayTags[arrayTag] = | |
| typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = | |
| typedArrayTags[dateTag] = typedArrayTags[errorTag] = | |
| typedArrayTags[funcTag] = typedArrayTags[mapTag] = | |
| typedArrayTags[numberTag] = typedArrayTags[objectTag] = | |
| typedArrayTags[regexpTag] = typedArrayTags[setTag] = | |
| typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false; | |
| /** Used to identify `toStringTag` values supported by `_.clone`. */ | |
| var cloneableTags = {}; | |
| cloneableTags[argsTag] = cloneableTags[arrayTag] = | |
| cloneableTags[arrayBufferTag] = cloneableTags[boolTag] = | |
| cloneableTags[dateTag] = cloneableTags[float32Tag] = | |
| cloneableTags[float64Tag] = cloneableTags[int8Tag] = | |
| cloneableTags[int16Tag] = cloneableTags[int32Tag] = | |
| cloneableTags[numberTag] = cloneableTags[objectTag] = | |
| cloneableTags[regexpTag] = cloneableTags[stringTag] = | |
| cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = | |
| cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; | |
| cloneableTags[errorTag] = cloneableTags[funcTag] = | |
| cloneableTags[mapTag] = cloneableTags[setTag] = | |
| cloneableTags[weakMapTag] = false; | |
| /** Used to map latin-1 supplementary letters to basic latin letters. */ | |
| var deburredLetters = { | |
| '\xc0': 'A', '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A', | |
| '\xe0': 'a', '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a', | |
| '\xc7': 'C', '\xe7': 'c', | |
| '\xd0': 'D', '\xf0': 'd', | |
| '\xc8': 'E', '\xc9': 'E', '\xca': 'E', '\xcb': 'E', | |
| '\xe8': 'e', '\xe9': 'e', '\xea': 'e', '\xeb': 'e', | |
| '\xcC': 'I', '\xcd': 'I', '\xce': 'I', '\xcf': 'I', | |
| '\xeC': 'i', '\xed': 'i', '\xee': 'i', '\xef': 'i', | |
| '\xd1': 'N', '\xf1': 'n', | |
| '\xd2': 'O', '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O', | |
| '\xf2': 'o', '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o', | |
| '\xd9': 'U', '\xda': 'U', '\xdb': 'U', '\xdc': 'U', | |
| '\xf9': 'u', '\xfa': 'u', '\xfb': 'u', '\xfc': 'u', | |
| '\xdd': 'Y', '\xfd': 'y', '\xff': 'y', | |
| '\xc6': 'Ae', '\xe6': 'ae', | |
| '\xde': 'Th', '\xfe': 'th', | |
| '\xdf': 'ss' | |
| }; | |
| /** Used to map characters to HTML entities. */ | |
| var htmlEscapes = { | |
| '&': '&', | |
| '<': '<', | |
| '>': '>', | |
| '"': '"', | |
| "'": ''', | |
| '`': '`' | |
| }; | |
| /** Used to map HTML entities to characters. */ | |
| var htmlUnescapes = { | |
| '&': '&', | |
| '<': '<', | |
| '>': '>', | |
| '"': '"', | |
| ''': "'", | |
| '`': '`' | |
| }; | |
| /** Used to determine if values are of the language type `Object`. */ | |
| var objectTypes = { | |
| 'function': true, | |
| 'object': true | |
| }; | |
| /** Used to escape characters for inclusion in compiled regexes. */ | |
| var regexpEscapes = { | |
| '0': 'x30', '1': 'x31', '2': 'x32', '3': 'x33', '4': 'x34', | |
| '5': 'x35', '6': 'x36', '7': 'x37', '8': 'x38', '9': 'x39', | |
| 'A': 'x41', 'B': 'x42', 'C': 'x43', 'D': 'x44', 'E': 'x45', 'F': 'x46', | |
| 'a': 'x61', 'b': 'x62', 'c': 'x63', 'd': 'x64', 'e': 'x65', 'f': 'x66', | |
| 'n': 'x6e', 'r': 'x72', 't': 'x74', 'u': 'x75', 'v': 'x76', 'x': 'x78' | |
| }; | |
| /** Used to escape characters for inclusion in compiled string literals. */ | |
| var stringEscapes = { | |
| '\\': '\\', | |
| "'": "'", | |
| '\n': 'n', | |
| '\r': 'r', | |
| '\u2028': 'u2028', | |
| '\u2029': 'u2029' | |
| }; | |
| /** Detect free variable `exports`. */ | |
| var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports; | |
| /** Detect free variable `module`. */ | |
| var freeModule = objectTypes[typeof module] && module && !module.nodeType && module; | |
| /** Detect free variable `global` from Node.js. */ | |
| var freeGlobal = freeExports && freeModule && typeof global == 'object' && global && global.Object && global; | |
| /** Detect free variable `self`. */ | |
| var freeSelf = objectTypes[typeof self] && self && self.Object && self; | |
| /** Detect free variable `window`. */ | |
| var freeWindow = objectTypes[typeof window] && window && window.Object && window; | |
| /** Detect the popular CommonJS extension `module.exports`. */ | |
| var moduleExports = freeModule && freeModule.exports === freeExports && freeExports; | |
| /** | |
| * Used as a reference to the global object. | |
| * | |
| * The `this` value is used if it's the global object to avoid Greasemonkey's | |
| * restricted `window` object, otherwise the `window` object is used. | |
| */ | |
| var root = freeGlobal || ((freeWindow !== (this && this.window)) && freeWindow) || freeSelf || this; | |
| /*--------------------------------------------------------------------------*/ | |
| /** | |
| * The base implementation of `compareAscending` which compares values and | |
| * sorts them in ascending order without guaranteeing a stable sort. | |
| * | |
| * @private | |
| * @param {*} value The value to compare. | |
| * @param {*} other The other value to compare. | |
| * @returns {number} Returns the sort order indicator for `value`. | |
| */ | |
| function baseCompareAscending(value, other) { | |
| if (value !== other) { | |
| var valIsNull = value === null, | |
| valIsUndef = value === undefined, | |
| valIsReflexive = value === value; | |
| var othIsNull = other === null, | |
| othIsUndef = other === undefined, | |
| othIsReflexive = other === other; | |
| if ((value > other && !othIsNull) || !valIsReflexive || | |
| (valIsNull && !othIsUndef && othIsReflexive) || | |
| (valIsUndef && othIsReflexive)) { | |
| return 1; | |
| } | |
| if ((value < other && !valIsNull) || !othIsReflexive || | |
| (othIsNull && !valIsUndef && valIsReflexive) || | |
| (othIsUndef && valIsReflexive)) { | |
| return -1; | |
| } | |
| } | |
| return 0; | |
| } | |
| /** | |
| * The base implementation of `_.findIndex` and `_.findLastIndex` without | |
| * support for callback shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Array} array The array to search. | |
| * @param {Function} predicate The function invoked per iteration. | |
| * @param {boolean} [fromRight] Specify iterating from right to left. | |
| * @returns {number} Returns the index of the matched value, else `-1`. | |
| */ | |
| function baseFindIndex(array, predicate, fromRight) { | |
| var length = array.length, | |
| index = fromRight ? length : -1; | |
| while ((fromRight ? index-- : ++index < length)) { | |
| if (predicate(array[index], index, array)) { | |
| return index; | |
| } | |
| } | |
| return -1; | |
| } | |
| /** | |
| * The base implementation of `_.indexOf` without support for binary searches. | |
| * | |
| * @private | |
| * @param {Array} array The array to search. | |
| * @param {*} value The value to search for. | |
| * @param {number} fromIndex The index to search from. | |
| * @returns {number} Returns the index of the matched value, else `-1`. | |
| */ | |
| function baseIndexOf(array, value, fromIndex) { | |
| if (value !== value) { | |
| return indexOfNaN(array, fromIndex); | |
| } | |
| var index = fromIndex - 1, | |
| length = array.length; | |
| while (++index < length) { | |
| if (array[index] === value) { | |
| return index; | |
| } | |
| } | |
| return -1; | |
| } | |
| /** | |
| * The base implementation of `_.isFunction` without support for environments | |
| * with incorrect `typeof` results. | |
| * | |
| * @private | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. | |
| */ | |
| function baseIsFunction(value) { | |
| // Avoid a Chakra JIT bug in compatibility modes of IE 11. | |
| // See https://github.com/jashkenas/underscore/issues/1621 for more details. | |
| return typeof value == 'function' || false; | |
| } | |
| /** | |
| * Converts `value` to a string if it's not one. An empty string is returned | |
| * for `null` or `undefined` values. | |
| * | |
| * @private | |
| * @param {*} value The value to process. | |
| * @returns {string} Returns the string. | |
| */ | |
| function baseToString(value) { | |
| return value == null ? '' : (value + ''); | |
| } | |
| /** | |
| * Used by `_.trim` and `_.trimLeft` to get the index of the first character | |
| * of `string` that is not found in `chars`. | |
| * | |
| * @private | |
| * @param {string} string The string to inspect. | |
| * @param {string} chars The characters to find. | |
| * @returns {number} Returns the index of the first character not found in `chars`. | |
| */ | |
| function charsLeftIndex(string, chars) { | |
| var index = -1, | |
| length = string.length; | |
| while (++index < length && chars.indexOf(string.charAt(index)) > -1) {} | |
| return index; | |
| } | |
| /** | |
| * Used by `_.trim` and `_.trimRight` to get the index of the last character | |
| * of `string` that is not found in `chars`. | |
| * | |
| * @private | |
| * @param {string} string The string to inspect. | |
| * @param {string} chars The characters to find. | |
| * @returns {number} Returns the index of the last character not found in `chars`. | |
| */ | |
| function charsRightIndex(string, chars) { | |
| var index = string.length; | |
| while (index-- && chars.indexOf(string.charAt(index)) > -1) {} | |
| return index; | |
| } | |
| /** | |
| * Used by `_.sortBy` to compare transformed elements of a collection and stable | |
| * sort them in ascending order. | |
| * | |
| * @private | |
| * @param {Object} object The object to compare. | |
| * @param {Object} other The other object to compare. | |
| * @returns {number} Returns the sort order indicator for `object`. | |
| */ | |
| function compareAscending(object, other) { | |
| return baseCompareAscending(object.criteria, other.criteria) || (object.index - other.index); | |
| } | |
| /** | |
| * Used by `_.sortByOrder` to compare multiple properties of a value to another | |
| * and stable sort them. | |
| * | |
| * If `orders` is unspecified, all valuess are sorted in ascending order. Otherwise, | |
| * a value is sorted in ascending order if its corresponding order is "asc", and | |
| * descending if "desc". | |
| * | |
| * @private | |
| * @param {Object} object The object to compare. | |
| * @param {Object} other The other object to compare. | |
| * @param {boolean[]} orders The order to sort by for each property. | |
| * @returns {number} Returns the sort order indicator for `object`. | |
| */ | |
| function compareMultiple(object, other, orders) { | |
| var index = -1, | |
| objCriteria = object.criteria, | |
| othCriteria = other.criteria, | |
| length = objCriteria.length, | |
| ordersLength = orders.length; | |
| while (++index < length) { | |
| var result = baseCompareAscending(objCriteria[index], othCriteria[index]); | |
| if (result) { | |
| if (index >= ordersLength) { | |
| return result; | |
| } | |
| var order = orders[index]; | |
| return result * ((order === 'asc' || order === true) ? 1 : -1); | |
| } | |
| } | |
| // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications | |
| // that causes it, under certain circumstances, to provide the same value for | |
| // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 | |
| // for more details. | |
| // | |
| // This also ensures a stable sort in V8 and other engines. | |
| // See https://code.google.com/p/v8/issues/detail?id=90 for more details. | |
| return object.index - other.index; | |
| } | |
| /** | |
| * Used by `_.deburr` to convert latin-1 supplementary letters to basic latin letters. | |
| * | |
| * @private | |
| * @param {string} letter The matched letter to deburr. | |
| * @returns {string} Returns the deburred letter. | |
| */ | |
| function deburrLetter(letter) { | |
| return deburredLetters[letter]; | |
| } | |
| /** | |
| * Used by `_.escape` to convert characters to HTML entities. | |
| * | |
| * @private | |
| * @param {string} chr The matched character to escape. | |
| * @returns {string} Returns the escaped character. | |
| */ | |
| function escapeHtmlChar(chr) { | |
| return htmlEscapes[chr]; | |
| } | |
| /** | |
| * Used by `_.escapeRegExp` to escape characters for inclusion in compiled regexes. | |
| * | |
| * @private | |
| * @param {string} chr The matched character to escape. | |
| * @param {string} leadingChar The capture group for a leading character. | |
| * @param {string} whitespaceChar The capture group for a whitespace character. | |
| * @returns {string} Returns the escaped character. | |
| */ | |
| function escapeRegExpChar(chr, leadingChar, whitespaceChar) { | |
| if (leadingChar) { | |
| chr = regexpEscapes[chr]; | |
| } else if (whitespaceChar) { | |
| chr = stringEscapes[chr]; | |
| } | |
| return '\\' + chr; | |
| } | |
| /** | |
| * Used by `_.template` to escape characters for inclusion in compiled string literals. | |
| * | |
| * @private | |
| * @param {string} chr The matched character to escape. | |
| * @returns {string} Returns the escaped character. | |
| */ | |
| function escapeStringChar(chr) { | |
| return '\\' + stringEscapes[chr]; | |
| } | |
| /** | |
| * Gets the index at which the first occurrence of `NaN` is found in `array`. | |
| * | |
| * @private | |
| * @param {Array} array The array to search. | |
| * @param {number} fromIndex The index to search from. | |
| * @param {boolean} [fromRight] Specify iterating from right to left. | |
| * @returns {number} Returns the index of the matched `NaN`, else `-1`. | |
| */ | |
| function indexOfNaN(array, fromIndex, fromRight) { | |
| var length = array.length, | |
| index = fromIndex + (fromRight ? 0 : -1); | |
| while ((fromRight ? index-- : ++index < length)) { | |
| var other = array[index]; | |
| if (other !== other) { | |
| return index; | |
| } | |
| } | |
| return -1; | |
| } | |
| /** | |
| * Checks if `value` is object-like. | |
| * | |
| * @private | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is object-like, else `false`. | |
| */ | |
| function isObjectLike(value) { | |
| return !!value && typeof value == 'object'; | |
| } | |
| /** | |
| * Used by `trimmedLeftIndex` and `trimmedRightIndex` to determine if a | |
| * character code is whitespace. | |
| * | |
| * @private | |
| * @param {number} charCode The character code to inspect. | |
| * @returns {boolean} Returns `true` if `charCode` is whitespace, else `false`. | |
| */ | |
| function isSpace(charCode) { | |
| return ((charCode <= 160 && (charCode >= 9 && charCode <= 13) || charCode == 32 || charCode == 160) || charCode == 5760 || charCode == 6158 || | |
| (charCode >= 8192 && (charCode <= 8202 || charCode == 8232 || charCode == 8233 || charCode == 8239 || charCode == 8287 || charCode == 12288 || charCode == 65279))); | |
| } | |
| /** | |
| * Replaces all `placeholder` elements in `array` with an internal placeholder | |
| * and returns an array of their indexes. | |
| * | |
| * @private | |
| * @param {Array} array The array to modify. | |
| * @param {*} placeholder The placeholder to replace. | |
| * @returns {Array} Returns the new array of placeholder indexes. | |
| */ | |
| function replaceHolders(array, placeholder) { | |
| var index = -1, | |
| length = array.length, | |
| resIndex = -1, | |
| result = []; | |
| while (++index < length) { | |
| if (array[index] === placeholder) { | |
| array[index] = PLACEHOLDER; | |
| result[++resIndex] = index; | |
| } | |
| } | |
| return result; | |
| } | |
| /** | |
| * An implementation of `_.uniq` optimized for sorted arrays without support | |
| * for callback shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Array} array The array to inspect. | |
| * @param {Function} [iteratee] The function invoked per iteration. | |
| * @returns {Array} Returns the new duplicate free array. | |
| */ | |
| function sortedUniq(array, iteratee) { | |
| var seen, | |
| index = -1, | |
| length = array.length, | |
| resIndex = -1, | |
| result = []; | |
| while (++index < length) { | |
| var value = array[index], | |
| computed = iteratee ? iteratee(value, index, array) : value; | |
| if (!index || seen !== computed) { | |
| seen = computed; | |
| result[++resIndex] = value; | |
| } | |
| } | |
| return result; | |
| } | |
| /** | |
| * Used by `_.trim` and `_.trimLeft` to get the index of the first non-whitespace | |
| * character of `string`. | |
| * | |
| * @private | |
| * @param {string} string The string to inspect. | |
| * @returns {number} Returns the index of the first non-whitespace character. | |
| */ | |
| function trimmedLeftIndex(string) { | |
| var index = -1, | |
| length = string.length; | |
| while (++index < length && isSpace(string.charCodeAt(index))) {} | |
| return index; | |
| } | |
| /** | |
| * Used by `_.trim` and `_.trimRight` to get the index of the last non-whitespace | |
| * character of `string`. | |
| * | |
| * @private | |
| * @param {string} string The string to inspect. | |
| * @returns {number} Returns the index of the last non-whitespace character. | |
| */ | |
| function trimmedRightIndex(string) { | |
| var index = string.length; | |
| while (index-- && isSpace(string.charCodeAt(index))) {} | |
| return index; | |
| } | |
| /** | |
| * Used by `_.unescape` to convert HTML entities to characters. | |
| * | |
| * @private | |
| * @param {string} chr The matched character to unescape. | |
| * @returns {string} Returns the unescaped character. | |
| */ | |
| function unescapeHtmlChar(chr) { | |
| return htmlUnescapes[chr]; | |
| } | |
| /*--------------------------------------------------------------------------*/ | |
| /** | |
| * Create a new pristine `lodash` function using the given `context` object. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Utility | |
| * @param {Object} [context=root] The context object. | |
| * @returns {Function} Returns a new `lodash` function. | |
| * @example | |
| * | |
| * _.mixin({ 'foo': _.constant('foo') }); | |
| * | |
| * var lodash = _.runInContext(); | |
| * lodash.mixin({ 'bar': lodash.constant('bar') }); | |
| * | |
| * _.isFunction(_.foo); | |
| * // => true | |
| * _.isFunction(_.bar); | |
| * // => false | |
| * | |
| * lodash.isFunction(lodash.foo); | |
| * // => false | |
| * lodash.isFunction(lodash.bar); | |
| * // => true | |
| * | |
| * // using `context` to mock `Date#getTime` use in `_.now` | |
| * var mock = _.runInContext({ | |
| * 'Date': function() { | |
| * return { 'getTime': getTimeMock }; | |
| * } | |
| * }); | |
| * | |
| * // or creating a suped-up `defer` in Node.js | |
| * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer; | |
| */ | |
| function runInContext(context) { | |
| // Avoid issues with some ES3 environments that attempt to use values, named | |
| // after built-in constructors like `Object`, for the creation of literals. | |
| // ES5 clears this up by stating that literals must use built-in constructors. | |
| // See https://es5.github.io/#x11.1.5 for more details. | |
| context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root; | |
| /** Native constructor references. */ | |
| var Array = context.Array, | |
| Date = context.Date, | |
| Error = context.Error, | |
| Function = context.Function, | |
| Math = context.Math, | |
| Number = context.Number, | |
| Object = context.Object, | |
| RegExp = context.RegExp, | |
| String = context.String, | |
| TypeError = context.TypeError; | |
| /** Used for native method references. */ | |
| var arrayProto = Array.prototype, | |
| objectProto = Object.prototype, | |
| stringProto = String.prototype; | |
| /** Used to resolve the decompiled source of functions. */ | |
| var fnToString = Function.prototype.toString; | |
| /** Used to check objects for own properties. */ | |
| var hasOwnProperty = objectProto.hasOwnProperty; | |
| /** Used to generate unique IDs. */ | |
| var idCounter = 0; | |
| /** | |
| * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) | |
| * of values. | |
| */ | |
| var objToString = objectProto.toString; | |
| /** Used to restore the original `_` reference in `_.noConflict`. */ | |
| var oldDash = root._; | |
| /** Used to detect if a method is native. */ | |
| var reIsNative = RegExp('^' + | |
| fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&') | |
| .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' | |
| ); | |
| /** Native method references. */ | |
| var ArrayBuffer = context.ArrayBuffer, | |
| clearTimeout = context.clearTimeout, | |
| parseFloat = context.parseFloat, | |
| pow = Math.pow, | |
| propertyIsEnumerable = objectProto.propertyIsEnumerable, | |
| Set = getNative(context, 'Set'), | |
| setTimeout = context.setTimeout, | |
| splice = arrayProto.splice, | |
| Uint8Array = context.Uint8Array, | |
| WeakMap = getNative(context, 'WeakMap'); | |
| /* Native method references for those with the same name as other `lodash` methods. */ | |
| var nativeCeil = Math.ceil, | |
| nativeCreate = getNative(Object, 'create'), | |
| nativeFloor = Math.floor, | |
| nativeIsArray = getNative(Array, 'isArray'), | |
| nativeIsFinite = context.isFinite, | |
| nativeKeys = getNative(Object, 'keys'), | |
| nativeMax = Math.max, | |
| nativeMin = Math.min, | |
| nativeNow = getNative(Date, 'now'), | |
| nativeParseInt = context.parseInt, | |
| nativeRandom = Math.random; | |
| /** Used as references for `-Infinity` and `Infinity`. */ | |
| var NEGATIVE_INFINITY = Number.NEGATIVE_INFINITY, | |
| POSITIVE_INFINITY = Number.POSITIVE_INFINITY; | |
| /** Used as references for the maximum length and index of an array. */ | |
| var MAX_ARRAY_LENGTH = 4294967295, | |
| MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1, | |
| HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1; | |
| /** | |
| * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer) | |
| * of an array-like value. | |
| */ | |
| var MAX_SAFE_INTEGER = 9007199254740991; | |
| /** Used to store function metadata. */ | |
| var metaMap = WeakMap && new WeakMap; | |
| /** Used to lookup unminified function names. */ | |
| var realNames = {}; | |
| /*------------------------------------------------------------------------*/ | |
| /** | |
| * Creates a `lodash` object which wraps `value` to enable implicit chaining. | |
| * Methods that operate on and return arrays, collections, and functions can | |
| * be chained together. Methods that retrieve a single value or may return a | |
| * primitive value will automatically end the chain returning the unwrapped | |
| * value. Explicit chaining may be enabled using `_.chain`. The execution of | |
| * chained methods is lazy, that is, execution is deferred until `_#value` | |
| * is implicitly or explicitly called. | |
| * | |
| * Lazy evaluation allows several methods to support shortcut fusion. Shortcut | |
| * fusion is an optimization strategy which merge iteratee calls; this can help | |
| * to avoid the creation of intermediate data structures and greatly reduce the | |
| * number of iteratee executions. | |
| * | |
| * Chaining is supported in custom builds as long as the `_#value` method is | |
| * directly or indirectly included in the build. | |
| * | |
| * In addition to lodash methods, wrappers have `Array` and `String` methods. | |
| * | |
| * The wrapper `Array` methods are: | |
| * `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`, | |
| * `splice`, and `unshift` | |
| * | |
| * The wrapper `String` methods are: | |
| * `replace` and `split` | |
| * | |
| * The wrapper methods that support shortcut fusion are: | |
| * `compact`, `drop`, `dropRight`, `dropRightWhile`, `dropWhile`, `filter`, | |
| * `first`, `initial`, `last`, `map`, `pluck`, `reject`, `rest`, `reverse`, | |
| * `slice`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, `toArray`, | |
| * and `where` | |
| * | |
| * The chainable wrapper methods are: | |
| * `after`, `ary`, `assign`, `at`, `before`, `bind`, `bindAll`, `bindKey`, | |
| * `callback`, `chain`, `chunk`, `commit`, `compact`, `concat`, `constant`, | |
| * `countBy`, `create`, `curry`, `debounce`, `defaults`, `defaultsDeep`, | |
| * `defer`, `delay`, `difference`, `drop`, `dropRight`, `dropRightWhile`, | |
| * `dropWhile`, `fill`, `filter`, `flatten`, `flattenDeep`, `flow`, `flowRight`, | |
| * `forEach`, `forEachRight`, `forIn`, `forInRight`, `forOwn`, `forOwnRight`, | |
| * `functions`, `groupBy`, `indexBy`, `initial`, `intersection`, `invert`, | |
| * `invoke`, `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, | |
| * `matchesProperty`, `memoize`, `merge`, `method`, `methodOf`, `mixin`, | |
| * `modArgs`, `negate`, `omit`, `once`, `pairs`, `partial`, `partialRight`, | |
| * `partition`, `pick`, `plant`, `pluck`, `property`, `propertyOf`, `pull`, | |
| * `pullAt`, `push`, `range`, `rearg`, `reject`, `remove`, `rest`, `restParam`, | |
| * `reverse`, `set`, `shuffle`, `slice`, `sort`, `sortBy`, `sortByAll`, | |
| * `sortByOrder`, `splice`, `spread`, `take`, `takeRight`, `takeRightWhile`, | |
| * `takeWhile`, `tap`, `throttle`, `thru`, `times`, `toArray`, `toPlainObject`, | |
| * `transform`, `union`, `uniq`, `unshift`, `unzip`, `unzipWith`, `values`, | |
| * `valuesIn`, `where`, `without`, `wrap`, `xor`, `zip`, `zipObject`, `zipWith` | |
| * | |
| * The wrapper methods that are **not** chainable by default are: | |
| * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clone`, `cloneDeep`, | |
| * `deburr`, `endsWith`, `escape`, `escapeRegExp`, `every`, `find`, `findIndex`, | |
| * `findKey`, `findLast`, `findLastIndex`, `findLastKey`, `findWhere`, `first`, | |
| * `floor`, `get`, `gt`, `gte`, `has`, `identity`, `includes`, `indexOf`, | |
| * `inRange`, `isArguments`, `isArray`, `isBoolean`, `isDate`, `isElement`, | |
| * `isEmpty`, `isEqual`, `isError`, `isFinite` `isFunction`, `isMatch`, | |
| * `isNative`, `isNaN`, `isNull`, `isNumber`, `isObject`, `isPlainObject`, | |
| * `isRegExp`, `isString`, `isUndefined`, `isTypedArray`, `join`, `kebabCase`, | |
| * `last`, `lastIndexOf`, `lt`, `lte`, `max`, `min`, `noConflict`, `noop`, | |
| * `now`, `pad`, `padLeft`, `padRight`, `parseInt`, `pop`, `random`, `reduce`, | |
| * `reduceRight`, `repeat`, `result`, `round`, `runInContext`, `shift`, `size`, | |
| * `snakeCase`, `some`, `sortedIndex`, `sortedLastIndex`, `startCase`, | |
| * `startsWith`, `sum`, `template`, `trim`, `trimLeft`, `trimRight`, `trunc`, | |
| * `unescape`, `uniqueId`, `value`, and `words` | |
| * | |
| * The wrapper method `sample` will return a wrapped value when `n` is provided, | |
| * otherwise an unwrapped value is returned. | |
| * | |
| * @name _ | |
| * @constructor | |
| * @category Chain | |
| * @param {*} value The value to wrap in a `lodash` instance. | |
| * @returns {Object} Returns the new `lodash` wrapper instance. | |
| * @example | |
| * | |
| * var wrapped = _([1, 2, 3]); | |
| * | |
| * // returns an unwrapped value | |
| * wrapped.reduce(function(total, n) { | |
| * return total + n; | |
| * }); | |
| * // => 6 | |
| * | |
| * // returns a wrapped value | |
| * var squares = wrapped.map(function(n) { | |
| * return n * n; | |
| * }); | |
| * | |
| * _.isArray(squares); | |
| * // => false | |
| * | |
| * _.isArray(squares.value()); | |
| * // => true | |
| */ | |
| function lodash(value) { | |
| if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { | |
| if (value instanceof LodashWrapper) { | |
| return value; | |
| } | |
| if (hasOwnProperty.call(value, '__chain__') && hasOwnProperty.call(value, '__wrapped__')) { | |
| return wrapperClone(value); | |
| } | |
| } | |
| return new LodashWrapper(value); | |
| } | |
| /** | |
| * The function whose prototype all chaining wrappers inherit from. | |
| * | |
| * @private | |
| */ | |
| function baseLodash() { | |
| // No operation performed. | |
| } | |
| /** | |
| * The base constructor for creating `lodash` wrapper objects. | |
| * | |
| * @private | |
| * @param {*} value The value to wrap. | |
| * @param {boolean} [chainAll] Enable chaining for all wrapper methods. | |
| * @param {Array} [actions=[]] Actions to peform to resolve the unwrapped value. | |
| */ | |
| function LodashWrapper(value, chainAll, actions) { | |
| this.__wrapped__ = value; | |
| this.__actions__ = actions || []; | |
| this.__chain__ = !!chainAll; | |
| } | |
| /** | |
| * An object environment feature flags. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @type Object | |
| */ | |
| var support = lodash.support = {}; | |
| /** | |
| * By default, the template delimiters used by lodash are like those in | |
| * embedded Ruby (ERB). Change the following template settings to use | |
| * alternative delimiters. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @type Object | |
| */ | |
| lodash.templateSettings = { | |
| /** | |
| * Used to detect `data` property values to be HTML-escaped. | |
| * | |
| * @memberOf _.templateSettings | |
| * @type RegExp | |
| */ | |
| 'escape': reEscape, | |
| /** | |
| * Used to detect code to be evaluated. | |
| * | |
| * @memberOf _.templateSettings | |
| * @type RegExp | |
| */ | |
| 'evaluate': reEvaluate, | |
| /** | |
| * Used to detect `data` property values to inject. | |
| * | |
| * @memberOf _.templateSettings | |
| * @type RegExp | |
| */ | |
| 'interpolate': reInterpolate, | |
| /** | |
| * Used to reference the data object in the template text. | |
| * | |
| * @memberOf _.templateSettings | |
| * @type string | |
| */ | |
| 'variable': '', | |
| /** | |
| * Used to import variables into the compiled template. | |
| * | |
| * @memberOf _.templateSettings | |
| * @type Object | |
| */ | |
| 'imports': { | |
| /** | |
| * A reference to the `lodash` function. | |
| * | |
| * @memberOf _.templateSettings.imports | |
| * @type Function | |
| */ | |
| '_': lodash | |
| } | |
| }; | |
| /*------------------------------------------------------------------------*/ | |
| /** | |
| * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. | |
| * | |
| * @private | |
| * @param {*} value The value to wrap. | |
| */ | |
| function LazyWrapper(value) { | |
| this.__wrapped__ = value; | |
| this.__actions__ = []; | |
| this.__dir__ = 1; | |
| this.__filtered__ = false; | |
| this.__iteratees__ = []; | |
| this.__takeCount__ = POSITIVE_INFINITY; | |
| this.__views__ = []; | |
| } | |
| /** | |
| * Creates a clone of the lazy wrapper object. | |
| * | |
| * @private | |
| * @name clone | |
| * @memberOf LazyWrapper | |
| * @returns {Object} Returns the cloned `LazyWrapper` object. | |
| */ | |
| function lazyClone() { | |
| var result = new LazyWrapper(this.__wrapped__); | |
| result.__actions__ = arrayCopy(this.__actions__); | |
| result.__dir__ = this.__dir__; | |
| result.__filtered__ = this.__filtered__; | |
| result.__iteratees__ = arrayCopy(this.__iteratees__); | |
| result.__takeCount__ = this.__takeCount__; | |
| result.__views__ = arrayCopy(this.__views__); | |
| return result; | |
| } | |
| /** | |
| * Reverses the direction of lazy iteration. | |
| * | |
| * @private | |
| * @name reverse | |
| * @memberOf LazyWrapper | |
| * @returns {Object} Returns the new reversed `LazyWrapper` object. | |
| */ | |
| function lazyReverse() { | |
| if (this.__filtered__) { | |
| var result = new LazyWrapper(this); | |
| result.__dir__ = -1; | |
| result.__filtered__ = true; | |
| } else { | |
| result = this.clone(); | |
| result.__dir__ *= -1; | |
| } | |
| return result; | |
| } | |
| /** | |
| * Extracts the unwrapped value from its lazy wrapper. | |
| * | |
| * @private | |
| * @name value | |
| * @memberOf LazyWrapper | |
| * @returns {*} Returns the unwrapped value. | |
| */ | |
| function lazyValue() { | |
| var array = this.__wrapped__.value(), | |
| dir = this.__dir__, | |
| isArr = isArray(array), | |
| isRight = dir < 0, | |
| arrLength = isArr ? array.length : 0, | |
| view = getView(0, arrLength, this.__views__), | |
| start = view.start, | |
| end = view.end, | |
| length = end - start, | |
| index = isRight ? end : (start - 1), | |
| iteratees = this.__iteratees__, | |
| iterLength = iteratees.length, | |
| resIndex = 0, | |
| takeCount = nativeMin(length, this.__takeCount__); | |
| if (!isArr || arrLength < LARGE_ARRAY_SIZE || (arrLength == length && takeCount == length)) { | |
| return baseWrapperValue(array, this.__actions__); | |
| } | |
| var result = []; | |
| outer: | |
| while (length-- && resIndex < takeCount) { | |
| index += dir; | |
| var iterIndex = -1, | |
| value = array[index]; | |
| while (++iterIndex < iterLength) { | |
| var data = iteratees[iterIndex], | |
| iteratee = data.iteratee, | |
| type = data.type, | |
| computed = iteratee(value); | |
| if (type == LAZY_MAP_FLAG) { | |
| value = computed; | |
| } else if (!computed) { | |
| if (type == LAZY_FILTER_FLAG) { | |
| continue outer; | |
| } else { | |
| break outer; | |
| } | |
| } | |
| } | |
| result[resIndex++] = value; | |
| } | |
| return result; | |
| } | |
| /*------------------------------------------------------------------------*/ | |
| /** | |
| * Creates a cache object to store key/value pairs. | |
| * | |
| * @private | |
| * @static | |
| * @name Cache | |
| * @memberOf _.memoize | |
| */ | |
| function MapCache() { | |
| this.__data__ = {}; | |
| } | |
| /** | |
| * Removes `key` and its value from the cache. | |
| * | |
| * @private | |
| * @name delete | |
| * @memberOf _.memoize.Cache | |
| * @param {string} key The key of the value to remove. | |
| * @returns {boolean} Returns `true` if the entry was removed successfully, else `false`. | |
| */ | |
| function mapDelete(key) { | |
| return this.has(key) && delete this.__data__[key]; | |
| } | |
| /** | |
| * Gets the cached value for `key`. | |
| * | |
| * @private | |
| * @name get | |
| * @memberOf _.memoize.Cache | |
| * @param {string} key The key of the value to get. | |
| * @returns {*} Returns the cached value. | |
| */ | |
| function mapGet(key) { | |
| return key == '__proto__' ? undefined : this.__data__[key]; | |
| } | |
| /** | |
| * Checks if a cached value for `key` exists. | |
| * | |
| * @private | |
| * @name has | |
| * @memberOf _.memoize.Cache | |
| * @param {string} key The key of the entry to check. | |
| * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. | |
| */ | |
| function mapHas(key) { | |
| return key != '__proto__' && hasOwnProperty.call(this.__data__, key); | |
| } | |
| /** | |
| * Sets `value` to `key` of the cache. | |
| * | |
| * @private | |
| * @name set | |
| * @memberOf _.memoize.Cache | |
| * @param {string} key The key of the value to cache. | |
| * @param {*} value The value to cache. | |
| * @returns {Object} Returns the cache object. | |
| */ | |
| function mapSet(key, value) { | |
| if (key != '__proto__') { | |
| this.__data__[key] = value; | |
| } | |
| return this; | |
| } | |
| /*------------------------------------------------------------------------*/ | |
| /** | |
| * | |
| * Creates a cache object to store unique values. | |
| * | |
| * @private | |
| * @param {Array} [values] The values to cache. | |
| */ | |
| function SetCache(values) { | |
| var length = values ? values.length : 0; | |
| this.data = { 'hash': nativeCreate(null), 'set': new Set }; | |
| while (length--) { | |
| this.push(values[length]); | |
| } | |
| } | |
| /** | |
| * Checks if `value` is in `cache` mimicking the return signature of | |
| * `_.indexOf` by returning `0` if the value is found, else `-1`. | |
| * | |
| * @private | |
| * @param {Object} cache The cache to search. | |
| * @param {*} value The value to search for. | |
| * @returns {number} Returns `0` if `value` is found, else `-1`. | |
| */ | |
| function cacheIndexOf(cache, value) { | |
| var data = cache.data, | |
| result = (typeof value == 'string' || isObject(value)) ? data.set.has(value) : data.hash[value]; | |
| return result ? 0 : -1; | |
| } | |
| /** | |
| * Adds `value` to the cache. | |
| * | |
| * @private | |
| * @name push | |
| * @memberOf SetCache | |
| * @param {*} value The value to cache. | |
| */ | |
| function cachePush(value) { | |
| var data = this.data; | |
| if (typeof value == 'string' || isObject(value)) { | |
| data.set.add(value); | |
| } else { | |
| data.hash[value] = true; | |
| } | |
| } | |
| /*------------------------------------------------------------------------*/ | |
| /** | |
| * Creates a new array joining `array` with `other`. | |
| * | |
| * @private | |
| * @param {Array} array The array to join. | |
| * @param {Array} other The other array to join. | |
| * @returns {Array} Returns the new concatenated array. | |
| */ | |
| function arrayConcat(array, other) { | |
| var index = -1, | |
| length = array.length, | |
| othIndex = -1, | |
| othLength = other.length, | |
| result = Array(length + othLength); | |
| while (++index < length) { | |
| result[index] = array[index]; | |
| } | |
| while (++othIndex < othLength) { | |
| result[index++] = other[othIndex]; | |
| } | |
| return result; | |
| } | |
| /** | |
| * Copies the values of `source` to `array`. | |
| * | |
| * @private | |
| * @param {Array} source The array to copy values from. | |
| * @param {Array} [array=[]] The array to copy values to. | |
| * @returns {Array} Returns `array`. | |
| */ | |
| function arrayCopy(source, array) { | |
| var index = -1, | |
| length = source.length; | |
| array || (array = Array(length)); | |
| while (++index < length) { | |
| array[index] = source[index]; | |
| } | |
| return array; | |
| } | |
| /** | |
| * A specialized version of `_.forEach` for arrays without support for callback | |
| * shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Array} array The array to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @returns {Array} Returns `array`. | |
| */ | |
| function arrayEach(array, iteratee) { | |
| var index = -1, | |
| length = array.length; | |
| while (++index < length) { | |
| if (iteratee(array[index], index, array) === false) { | |
| break; | |
| } | |
| } | |
| return array; | |
| } | |
| /** | |
| * A specialized version of `_.forEachRight` for arrays without support for | |
| * callback shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Array} array The array to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @returns {Array} Returns `array`. | |
| */ | |
| function arrayEachRight(array, iteratee) { | |
| var length = array.length; | |
| while (length--) { | |
| if (iteratee(array[length], length, array) === false) { | |
| break; | |
| } | |
| } | |
| return array; | |
| } | |
| /** | |
| * A specialized version of `_.every` for arrays without support for callback | |
| * shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Array} array The array to iterate over. | |
| * @param {Function} predicate The function invoked per iteration. | |
| * @returns {boolean} Returns `true` if all elements pass the predicate check, | |
| * else `false`. | |
| */ | |
| function arrayEvery(array, predicate) { | |
| var index = -1, | |
| length = array.length; | |
| while (++index < length) { | |
| if (!predicate(array[index], index, array)) { | |
| return false; | |
| } | |
| } | |
| return true; | |
| } | |
| /** | |
| * A specialized version of `baseExtremum` for arrays which invokes `iteratee` | |
| * with one argument: (value). | |
| * | |
| * @private | |
| * @param {Array} array The array to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @param {Function} comparator The function used to compare values. | |
| * @param {*} exValue The initial extremum value. | |
| * @returns {*} Returns the extremum value. | |
| */ | |
| function arrayExtremum(array, iteratee, comparator, exValue) { | |
| var index = -1, | |
| length = array.length, | |
| computed = exValue, | |
| result = computed; | |
| while (++index < length) { | |
| var value = array[index], | |
| current = +iteratee(value); | |
| if (comparator(current, computed)) { | |
| computed = current; | |
| result = value; | |
| } | |
| } | |
| return result; | |
| } | |
| /** | |
| * A specialized version of `_.filter` for arrays without support for callback | |
| * shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Array} array The array to iterate over. | |
| * @param {Function} predicate The function invoked per iteration. | |
| * @returns {Array} Returns the new filtered array. | |
| */ | |
| function arrayFilter(array, predicate) { | |
| var index = -1, | |
| length = array.length, | |
| resIndex = -1, | |
| result = []; | |
| while (++index < length) { | |
| var value = array[index]; | |
| if (predicate(value, index, array)) { | |
| result[++resIndex] = value; | |
| } | |
| } | |
| return result; | |
| } | |
| /** | |
| * A specialized version of `_.map` for arrays without support for callback | |
| * shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Array} array The array to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @returns {Array} Returns the new mapped array. | |
| */ | |
| function arrayMap(array, iteratee) { | |
| var index = -1, | |
| length = array.length, | |
| result = Array(length); | |
| while (++index < length) { | |
| result[index] = iteratee(array[index], index, array); | |
| } | |
| return result; | |
| } | |
| /** | |
| * Appends the elements of `values` to `array`. | |
| * | |
| * @private | |
| * @param {Array} array The array to modify. | |
| * @param {Array} values The values to append. | |
| * @returns {Array} Returns `array`. | |
| */ | |
| function arrayPush(array, values) { | |
| var index = -1, | |
| length = values.length, | |
| offset = array.length; | |
| while (++index < length) { | |
| array[offset + index] = values[index]; | |
| } | |
| return array; | |
| } | |
| /** | |
| * A specialized version of `_.reduce` for arrays without support for callback | |
| * shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Array} array The array to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @param {*} [accumulator] The initial value. | |
| * @param {boolean} [initFromArray] Specify using the first element of `array` | |
| * as the initial value. | |
| * @returns {*} Returns the accumulated value. | |
| */ | |
| function arrayReduce(array, iteratee, accumulator, initFromArray) { | |
| var index = -1, | |
| length = array.length; | |
| if (initFromArray && length) { | |
| accumulator = array[++index]; | |
| } | |
| while (++index < length) { | |
| accumulator = iteratee(accumulator, array[index], index, array); | |
| } | |
| return accumulator; | |
| } | |
| /** | |
| * A specialized version of `_.reduceRight` for arrays without support for | |
| * callback shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Array} array The array to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @param {*} [accumulator] The initial value. | |
| * @param {boolean} [initFromArray] Specify using the last element of `array` | |
| * as the initial value. | |
| * @returns {*} Returns the accumulated value. | |
| */ | |
| function arrayReduceRight(array, iteratee, accumulator, initFromArray) { | |
| var length = array.length; | |
| if (initFromArray && length) { | |
| accumulator = array[--length]; | |
| } | |
| while (length--) { | |
| accumulator = iteratee(accumulator, array[length], length, array); | |
| } | |
| return accumulator; | |
| } | |
| /** | |
| * A specialized version of `_.some` for arrays without support for callback | |
| * shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Array} array The array to iterate over. | |
| * @param {Function} predicate The function invoked per iteration. | |
| * @returns {boolean} Returns `true` if any element passes the predicate check, | |
| * else `false`. | |
| */ | |
| function arraySome(array, predicate) { | |
| var index = -1, | |
| length = array.length; | |
| while (++index < length) { | |
| if (predicate(array[index], index, array)) { | |
| return true; | |
| } | |
| } | |
| return false; | |
| } | |
| /** | |
| * A specialized version of `_.sum` for arrays without support for callback | |
| * shorthands and `this` binding.. | |
| * | |
| * @private | |
| * @param {Array} array The array to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @returns {number} Returns the sum. | |
| */ | |
| function arraySum(array, iteratee) { | |
| var length = array.length, | |
| result = 0; | |
| while (length--) { | |
| result += +iteratee(array[length]) || 0; | |
| } | |
| return result; | |
| } | |
| /** | |
| * Used by `_.defaults` to customize its `_.assign` use. | |
| * | |
| * @private | |
| * @param {*} objectValue The destination object property value. | |
| * @param {*} sourceValue The source object property value. | |
| * @returns {*} Returns the value to assign to the destination object. | |
| */ | |
| function assignDefaults(objectValue, sourceValue) { | |
| return objectValue === undefined ? sourceValue : objectValue; | |
| } | |
| /** | |
| * Used by `_.template` to customize its `_.assign` use. | |
| * | |
| * **Note:** This function is like `assignDefaults` except that it ignores | |
| * inherited property values when checking if a property is `undefined`. | |
| * | |
| * @private | |
| * @param {*} objectValue The destination object property value. | |
| * @param {*} sourceValue The source object property value. | |
| * @param {string} key The key associated with the object and source values. | |
| * @param {Object} object The destination object. | |
| * @returns {*} Returns the value to assign to the destination object. | |
| */ | |
| function assignOwnDefaults(objectValue, sourceValue, key, object) { | |
| return (objectValue === undefined || !hasOwnProperty.call(object, key)) | |
| ? sourceValue | |
| : objectValue; | |
| } | |
| /** | |
| * A specialized version of `_.assign` for customizing assigned values without | |
| * support for argument juggling, multiple sources, and `this` binding `customizer` | |
| * functions. | |
| * | |
| * @private | |
| * @param {Object} object The destination object. | |
| * @param {Object} source The source object. | |
| * @param {Function} customizer The function to customize assigned values. | |
| * @returns {Object} Returns `object`. | |
| */ | |
| function assignWith(object, source, customizer) { | |
| var index = -1, | |
| props = keys(source), | |
| length = props.length; | |
| while (++index < length) { | |
| var key = props[index], | |
| value = object[key], | |
| result = customizer(value, source[key], key, object, source); | |
| if ((result === result ? (result !== value) : (value === value)) || | |
| (value === undefined && !(key in object))) { | |
| object[key] = result; | |
| } | |
| } | |
| return object; | |
| } | |
| /** | |
| * The base implementation of `_.assign` without support for argument juggling, | |
| * multiple sources, and `customizer` functions. | |
| * | |
| * @private | |
| * @param {Object} object The destination object. | |
| * @param {Object} source The source object. | |
| * @returns {Object} Returns `object`. | |
| */ | |
| function baseAssign(object, source) { | |
| return source == null | |
| ? object | |
| : baseCopy(source, keys(source), object); | |
| } | |
| /** | |
| * The base implementation of `_.at` without support for string collections | |
| * and individual key arguments. | |
| * | |
| * @private | |
| * @param {Array|Object} collection The collection to iterate over. | |
| * @param {number[]|string[]} props The property names or indexes of elements to pick. | |
| * @returns {Array} Returns the new array of picked elements. | |
| */ | |
| function baseAt(collection, props) { | |
| var index = -1, | |
| isNil = collection == null, | |
| isArr = !isNil && isArrayLike(collection), | |
| length = isArr ? collection.length : 0, | |
| propsLength = props.length, | |
| result = Array(propsLength); | |
| while(++index < propsLength) { | |
| var key = props[index]; | |
| if (isArr) { | |
| result[index] = isIndex(key, length) ? collection[key] : undefined; | |
| } else { | |
| result[index] = isNil ? undefined : collection[key]; | |
| } | |
| } | |
| return result; | |
| } | |
| /** | |
| * Copies properties of `source` to `object`. | |
| * | |
| * @private | |
| * @param {Object} source The object to copy properties from. | |
| * @param {Array} props The property names to copy. | |
| * @param {Object} [object={}] The object to copy properties to. | |
| * @returns {Object} Returns `object`. | |
| */ | |
| function baseCopy(source, props, object) { | |
| object || (object = {}); | |
| var index = -1, | |
| length = props.length; | |
| while (++index < length) { | |
| var key = props[index]; | |
| object[key] = source[key]; | |
| } | |
| return object; | |
| } | |
| /** | |
| * The base implementation of `_.callback` which supports specifying the | |
| * number of arguments to provide to `func`. | |
| * | |
| * @private | |
| * @param {*} [func=_.identity] The value to convert to a callback. | |
| * @param {*} [thisArg] The `this` binding of `func`. | |
| * @param {number} [argCount] The number of arguments to provide to `func`. | |
| * @returns {Function} Returns the callback. | |
| */ | |
| function baseCallback(func, thisArg, argCount) { | |
| var type = typeof func; | |
| if (type == 'function') { | |
| return thisArg === undefined | |
| ? func | |
| : bindCallback(func, thisArg, argCount); | |
| } | |
| if (func == null) { | |
| return identity; | |
| } | |
| if (type == 'object') { | |
| return baseMatches(func); | |
| } | |
| return thisArg === undefined | |
| ? property(func) | |
| : baseMatchesProperty(func, thisArg); | |
| } | |
| /** | |
| * The base implementation of `_.clone` without support for argument juggling | |
| * and `this` binding `customizer` functions. | |
| * | |
| * @private | |
| * @param {*} value The value to clone. | |
| * @param {boolean} [isDeep] Specify a deep clone. | |
| * @param {Function} [customizer] The function to customize cloning values. | |
| * @param {string} [key] The key of `value`. | |
| * @param {Object} [object] The object `value` belongs to. | |
| * @param {Array} [stackA=[]] Tracks traversed source objects. | |
| * @param {Array} [stackB=[]] Associates clones with source counterparts. | |
| * @returns {*} Returns the cloned value. | |
| */ | |
| function baseClone(value, isDeep, customizer, key, object, stackA, stackB) { | |
| var result; | |
| if (customizer) { | |
| result = object ? customizer(value, key, object) : customizer(value); | |
| } | |
| if (result !== undefined) { | |
| return result; | |
| } | |
| if (!isObject(value)) { | |
| return value; | |
| } | |
| var isArr = isArray(value); | |
| if (isArr) { | |
| result = initCloneArray(value); | |
| if (!isDeep) { | |
| return arrayCopy(value, result); | |
| } | |
| } else { | |
| var tag = objToString.call(value), | |
| isFunc = tag == funcTag; | |
| if (tag == objectTag || tag == argsTag || (isFunc && !object)) { | |
| result = initCloneObject(isFunc ? {} : value); | |
| if (!isDeep) { | |
| return baseAssign(result, value); | |
| } | |
| } else { | |
| return cloneableTags[tag] | |
| ? initCloneByTag(value, tag, isDeep) | |
| : (object ? value : {}); | |
| } | |
| } | |
| // Check for circular references and return its corresponding clone. | |
| stackA || (stackA = []); | |
| stackB || (stackB = []); | |
| var length = stackA.length; | |
| while (length--) { | |
| if (stackA[length] == value) { | |
| return stackB[length]; | |
| } | |
| } | |
| // Add the source value to the stack of traversed objects and associate it with its clone. | |
| stackA.push(value); | |
| stackB.push(result); | |
| // Recursively populate clone (susceptible to call stack limits). | |
| (isArr ? arrayEach : baseForOwn)(value, function(subValue, key) { | |
| result[key] = baseClone(subValue, isDeep, customizer, key, value, stackA, stackB); | |
| }); | |
| return result; | |
| } | |
| /** | |
| * The base implementation of `_.create` without support for assigning | |
| * properties to the created object. | |
| * | |
| * @private | |
| * @param {Object} prototype The object to inherit from. | |
| * @returns {Object} Returns the new object. | |
| */ | |
| var baseCreate = (function() { | |
| function object() {} | |
| return function(prototype) { | |
| if (isObject(prototype)) { | |
| object.prototype = prototype; | |
| var result = new object; | |
| object.prototype = undefined; | |
| } | |
| return result || {}; | |
| }; | |
| }()); | |
| /** | |
| * The base implementation of `_.delay` and `_.defer` which accepts an index | |
| * of where to slice the arguments to provide to `func`. | |
| * | |
| * @private | |
| * @param {Function} func The function to delay. | |
| * @param {number} wait The number of milliseconds to delay invocation. | |
| * @param {Object} args The arguments provide to `func`. | |
| * @returns {number} Returns the timer id. | |
| */ | |
| function baseDelay(func, wait, args) { | |
| if (typeof func != 'function') { | |
| throw new TypeError(FUNC_ERROR_TEXT); | |
| } | |
| return setTimeout(function() { func.apply(undefined, args); }, wait); | |
| } | |
| /** | |
| * The base implementation of `_.difference` which accepts a single array | |
| * of values to exclude. | |
| * | |
| * @private | |
| * @param {Array} array The array to inspect. | |
| * @param {Array} values The values to exclude. | |
| * @returns {Array} Returns the new array of filtered values. | |
| */ | |
| function baseDifference(array, values) { | |
| var length = array ? array.length : 0, | |
| result = []; | |
| if (!length) { | |
| return result; | |
| } | |
| var index = -1, | |
| indexOf = getIndexOf(), | |
| isCommon = indexOf === baseIndexOf, | |
| cache = (isCommon && values.length >= LARGE_ARRAY_SIZE) ? createCache(values) : null, | |
| valuesLength = values.length; | |
| if (cache) { | |
| indexOf = cacheIndexOf; | |
| isCommon = false; | |
| values = cache; | |
| } | |
| outer: | |
| while (++index < length) { | |
| var value = array[index]; | |
| if (isCommon && value === value) { | |
| var valuesIndex = valuesLength; | |
| while (valuesIndex--) { | |
| if (values[valuesIndex] === value) { | |
| continue outer; | |
| } | |
| } | |
| result.push(value); | |
| } | |
| else if (indexOf(values, value, 0) < 0) { | |
| result.push(value); | |
| } | |
| } | |
| return result; | |
| } | |
| /** | |
| * The base implementation of `_.forEach` without support for callback | |
| * shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @returns {Array|Object|string} Returns `collection`. | |
| */ | |
| var baseEach = createBaseEach(baseForOwn); | |
| /** | |
| * The base implementation of `_.forEachRight` without support for callback | |
| * shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @returns {Array|Object|string} Returns `collection`. | |
| */ | |
| var baseEachRight = createBaseEach(baseForOwnRight, true); | |
| /** | |
| * The base implementation of `_.every` without support for callback | |
| * shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function} predicate The function invoked per iteration. | |
| * @returns {boolean} Returns `true` if all elements pass the predicate check, | |
| * else `false` | |
| */ | |
| function baseEvery(collection, predicate) { | |
| var result = true; | |
| baseEach(collection, function(value, index, collection) { | |
| result = !!predicate(value, index, collection); | |
| return result; | |
| }); | |
| return result; | |
| } | |
| /** | |
| * Gets the extremum value of `collection` invoking `iteratee` for each value | |
| * in `collection` to generate the criterion by which the value is ranked. | |
| * The `iteratee` is invoked with three arguments: (value, index|key, collection). | |
| * | |
| * @private | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @param {Function} comparator The function used to compare values. | |
| * @param {*} exValue The initial extremum value. | |
| * @returns {*} Returns the extremum value. | |
| */ | |
| function baseExtremum(collection, iteratee, comparator, exValue) { | |
| var computed = exValue, | |
| result = computed; | |
| baseEach(collection, function(value, index, collection) { | |
| var current = +iteratee(value, index, collection); | |
| if (comparator(current, computed) || (current === exValue && current === result)) { | |
| computed = current; | |
| result = value; | |
| } | |
| }); | |
| return result; | |
| } | |
| /** | |
| * The base implementation of `_.fill` without an iteratee call guard. | |
| * | |
| * @private | |
| * @param {Array} array The array to fill. | |
| * @param {*} value The value to fill `array` with. | |
| * @param {number} [start=0] The start position. | |
| * @param {number} [end=array.length] The end position. | |
| * @returns {Array} Returns `array`. | |
| */ | |
| function baseFill(array, value, start, end) { | |
| var length = array.length; | |
| start = start == null ? 0 : (+start || 0); | |
| if (start < 0) { | |
| start = -start > length ? 0 : (length + start); | |
| } | |
| end = (end === undefined || end > length) ? length : (+end || 0); | |
| if (end < 0) { | |
| end += length; | |
| } | |
| length = start > end ? 0 : (end >>> 0); | |
| start >>>= 0; | |
| while (start < length) { | |
| array[start++] = value; | |
| } | |
| return array; | |
| } | |
| /** | |
| * The base implementation of `_.filter` without support for callback | |
| * shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function} predicate The function invoked per iteration. | |
| * @returns {Array} Returns the new filtered array. | |
| */ | |
| function baseFilter(collection, predicate) { | |
| var result = []; | |
| baseEach(collection, function(value, index, collection) { | |
| if (predicate(value, index, collection)) { | |
| result.push(value); | |
| } | |
| }); | |
| return result; | |
| } | |
| /** | |
| * The base implementation of `_.find`, `_.findLast`, `_.findKey`, and `_.findLastKey`, | |
| * without support for callback shorthands and `this` binding, which iterates | |
| * over `collection` using the provided `eachFunc`. | |
| * | |
| * @private | |
| * @param {Array|Object|string} collection The collection to search. | |
| * @param {Function} predicate The function invoked per iteration. | |
| * @param {Function} eachFunc The function to iterate over `collection`. | |
| * @param {boolean} [retKey] Specify returning the key of the found element | |
| * instead of the element itself. | |
| * @returns {*} Returns the found element or its key, else `undefined`. | |
| */ | |
| function baseFind(collection, predicate, eachFunc, retKey) { | |
| var result; | |
| eachFunc(collection, function(value, key, collection) { | |
| if (predicate(value, key, collection)) { | |
| result = retKey ? key : value; | |
| return false; | |
| } | |
| }); | |
| return result; | |
| } | |
| /** | |
| * The base implementation of `_.flatten` with added support for restricting | |
| * flattening and specifying the start index. | |
| * | |
| * @private | |
| * @param {Array} array The array to flatten. | |
| * @param {boolean} [isDeep] Specify a deep flatten. | |
| * @param {boolean} [isStrict] Restrict flattening to arrays-like objects. | |
| * @param {Array} [result=[]] The initial result value. | |
| * @returns {Array} Returns the new flattened array. | |
| */ | |
| function baseFlatten(array, isDeep, isStrict, result) { | |
| result || (result = []); | |
| var index = -1, | |
| length = array.length; | |
| while (++index < length) { | |
| var value = array[index]; | |
| if (isObjectLike(value) && isArrayLike(value) && | |
| (isStrict || isArray(value) || isArguments(value))) { | |
| if (isDeep) { | |
| // Recursively flatten arrays (susceptible to call stack limits). | |
| baseFlatten(value, isDeep, isStrict, result); | |
| } else { | |
| arrayPush(result, value); | |
| } | |
| } else if (!isStrict) { | |
| result[result.length] = value; | |
| } | |
| } | |
| return result; | |
| } | |
| /** | |
| * The base implementation of `baseForIn` and `baseForOwn` which iterates | |
| * over `object` properties returned by `keysFunc` invoking `iteratee` for | |
| * each property. Iteratee functions may exit iteration early by explicitly | |
| * returning `false`. | |
| * | |
| * @private | |
| * @param {Object} object The object to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @param {Function} keysFunc The function to get the keys of `object`. | |
| * @returns {Object} Returns `object`. | |
| */ | |
| var baseFor = createBaseFor(); | |
| /** | |
| * This function is like `baseFor` except that it iterates over properties | |
| * in the opposite order. | |
| * | |
| * @private | |
| * @param {Object} object The object to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @param {Function} keysFunc The function to get the keys of `object`. | |
| * @returns {Object} Returns `object`. | |
| */ | |
| var baseForRight = createBaseFor(true); | |
| /** | |
| * The base implementation of `_.forIn` without support for callback | |
| * shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Object} object The object to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @returns {Object} Returns `object`. | |
| */ | |
| function baseForIn(object, iteratee) { | |
| return baseFor(object, iteratee, keysIn); | |
| } | |
| /** | |
| * The base implementation of `_.forOwn` without support for callback | |
| * shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Object} object The object to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @returns {Object} Returns `object`. | |
| */ | |
| function baseForOwn(object, iteratee) { | |
| return baseFor(object, iteratee, keys); | |
| } | |
| /** | |
| * The base implementation of `_.forOwnRight` without support for callback | |
| * shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Object} object The object to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @returns {Object} Returns `object`. | |
| */ | |
| function baseForOwnRight(object, iteratee) { | |
| return baseForRight(object, iteratee, keys); | |
| } | |
| /** | |
| * The base implementation of `_.functions` which creates an array of | |
| * `object` function property names filtered from those provided. | |
| * | |
| * @private | |
| * @param {Object} object The object to inspect. | |
| * @param {Array} props The property names to filter. | |
| * @returns {Array} Returns the new array of filtered property names. | |
| */ | |
| function baseFunctions(object, props) { | |
| var index = -1, | |
| length = props.length, | |
| resIndex = -1, | |
| result = []; | |
| while (++index < length) { | |
| var key = props[index]; | |
| if (isFunction(object[key])) { | |
| result[++resIndex] = key; | |
| } | |
| } | |
| return result; | |
| } | |
| /** | |
| * The base implementation of `get` without support for string paths | |
| * and default values. | |
| * | |
| * @private | |
| * @param {Object} object The object to query. | |
| * @param {Array} path The path of the property to get. | |
| * @param {string} [pathKey] The key representation of path. | |
| * @returns {*} Returns the resolved value. | |
| */ | |
| function baseGet(object, path, pathKey) { | |
| if (object == null) { | |
| return; | |
| } | |
| if (pathKey !== undefined && pathKey in toObject(object)) { | |
| path = [pathKey]; | |
| } | |
| var index = 0, | |
| length = path.length; | |
| while (object != null && index < length) { | |
| object = object[path[index++]]; | |
| } | |
| return (index && index == length) ? object : undefined; | |
| } | |
| /** | |
| * The base implementation of `_.isEqual` without support for `this` binding | |
| * `customizer` functions. | |
| * | |
| * @private | |
| * @param {*} value The value to compare. | |
| * @param {*} other The other value to compare. | |
| * @param {Function} [customizer] The function to customize comparing values. | |
| * @param {boolean} [isLoose] Specify performing partial comparisons. | |
| * @param {Array} [stackA] Tracks traversed `value` objects. | |
| * @param {Array} [stackB] Tracks traversed `other` objects. | |
| * @returns {boolean} Returns `true` if the values are equivalent, else `false`. | |
| */ | |
| function baseIsEqual(value, other, customizer, isLoose, stackA, stackB) { | |
| if (value === other) { | |
| return true; | |
| } | |
| if (value == null || other == null || (!isObject(value) && !isObjectLike(other))) { | |
| return value !== value && other !== other; | |
| } | |
| return baseIsEqualDeep(value, other, baseIsEqual, customizer, isLoose, stackA, stackB); | |
| } | |
| /** | |
| * A specialized version of `baseIsEqual` for arrays and objects which performs | |
| * deep comparisons and tracks traversed objects enabling objects with circular | |
| * references to be compared. | |
| * | |
| * @private | |
| * @param {Object} object The object to compare. | |
| * @param {Object} other The other object to compare. | |
| * @param {Function} equalFunc The function to determine equivalents of values. | |
| * @param {Function} [customizer] The function to customize comparing objects. | |
| * @param {boolean} [isLoose] Specify performing partial comparisons. | |
| * @param {Array} [stackA=[]] Tracks traversed `value` objects. | |
| * @param {Array} [stackB=[]] Tracks traversed `other` objects. | |
| * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. | |
| */ | |
| function baseIsEqualDeep(object, other, equalFunc, customizer, isLoose, stackA, stackB) { | |
| var objIsArr = isArray(object), | |
| othIsArr = isArray(other), | |
| objTag = arrayTag, | |
| othTag = arrayTag; | |
| if (!objIsArr) { | |
| objTag = objToString.call(object); | |
| if (objTag == argsTag) { | |
| objTag = objectTag; | |
| } else if (objTag != objectTag) { | |
| objIsArr = isTypedArray(object); | |
| } | |
| } | |
| if (!othIsArr) { | |
| othTag = objToString.call(other); | |
| if (othTag == argsTag) { | |
| othTag = objectTag; | |
| } else if (othTag != objectTag) { | |
| othIsArr = isTypedArray(other); | |
| } | |
| } | |
| var objIsObj = objTag == objectTag, | |
| othIsObj = othTag == objectTag, | |
| isSameTag = objTag == othTag; | |
| if (isSameTag && !(objIsArr || objIsObj)) { | |
| return equalByTag(object, other, objTag); | |
| } | |
| if (!isLoose) { | |
| var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), | |
| othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); | |
| if (objIsWrapped || othIsWrapped) { | |
| return equalFunc(objIsWrapped ? object.value() : object, othIsWrapped ? other.value() : other, customizer, isLoose, stackA, stackB); | |
| } | |
| } | |
| if (!isSameTag) { | |
| return false; | |
| } | |
| // Assume cyclic values are equal. | |
| // For more information on detecting circular references see https://es5.github.io/#JO. | |
| stackA || (stackA = []); | |
| stackB || (stackB = []); | |
| var length = stackA.length; | |
| while (length--) { | |
| if (stackA[length] == object) { | |
| return stackB[length] == other; | |
| } | |
| } | |
| // Add `object` and `other` to the stack of traversed objects. | |
| stackA.push(object); | |
| stackB.push(other); | |
| var result = (objIsArr ? equalArrays : equalObjects)(object, other, equalFunc, customizer, isLoose, stackA, stackB); | |
| stackA.pop(); | |
| stackB.pop(); | |
| return result; | |
| } | |
| /** | |
| * The base implementation of `_.isMatch` without support for callback | |
| * shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Object} object The object to inspect. | |
| * @param {Array} matchData The propery names, values, and compare flags to match. | |
| * @param {Function} [customizer] The function to customize comparing objects. | |
| * @returns {boolean} Returns `true` if `object` is a match, else `false`. | |
| */ | |
| function baseIsMatch(object, matchData, customizer) { | |
| var index = matchData.length, | |
| length = index, | |
| noCustomizer = !customizer; | |
| if (object == null) { | |
| return !length; | |
| } | |
| object = toObject(object); | |
| while (index--) { | |
| var data = matchData[index]; | |
| if ((noCustomizer && data[2]) | |
| ? data[1] !== object[data[0]] | |
| : !(data[0] in object) | |
| ) { | |
| return false; | |
| } | |
| } | |
| while (++index < length) { | |
| data = matchData[index]; | |
| var key = data[0], | |
| objValue = object[key], | |
| srcValue = data[1]; | |
| if (noCustomizer && data[2]) { | |
| if (objValue === undefined && !(key in object)) { | |
| return false; | |
| } | |
| } else { | |
| var result = customizer ? customizer(objValue, srcValue, key) : undefined; | |
| if (!(result === undefined ? baseIsEqual(srcValue, objValue, customizer, true) : result)) { | |
| return false; | |
| } | |
| } | |
| } | |
| return true; | |
| } | |
| /** | |
| * The base implementation of `_.map` without support for callback shorthands | |
| * and `this` binding. | |
| * | |
| * @private | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @returns {Array} Returns the new mapped array. | |
| */ | |
| function baseMap(collection, iteratee) { | |
| var index = -1, | |
| result = isArrayLike(collection) ? Array(collection.length) : []; | |
| baseEach(collection, function(value, key, collection) { | |
| result[++index] = iteratee(value, key, collection); | |
| }); | |
| return result; | |
| } | |
| /** | |
| * The base implementation of `_.matches` which does not clone `source`. | |
| * | |
| * @private | |
| * @param {Object} source The object of property values to match. | |
| * @returns {Function} Returns the new function. | |
| */ | |
| function baseMatches(source) { | |
| var matchData = getMatchData(source); | |
| if (matchData.length == 1 && matchData[0][2]) { | |
| var key = matchData[0][0], | |
| value = matchData[0][1]; | |
| return function(object) { | |
| if (object == null) { | |
| return false; | |
| } | |
| return object[key] === value && (value !== undefined || (key in toObject(object))); | |
| }; | |
| } | |
| return function(object) { | |
| return baseIsMatch(object, matchData); | |
| }; | |
| } | |
| /** | |
| * The base implementation of `_.matchesProperty` which does not clone `srcValue`. | |
| * | |
| * @private | |
| * @param {string} path The path of the property to get. | |
| * @param {*} srcValue The value to compare. | |
| * @returns {Function} Returns the new function. | |
| */ | |
| function baseMatchesProperty(path, srcValue) { | |
| var isArr = isArray(path), | |
| isCommon = isKey(path) && isStrictComparable(srcValue), | |
| pathKey = (path + ''); | |
| path = toPath(path); | |
| return function(object) { | |
| if (object == null) { | |
| return false; | |
| } | |
| var key = pathKey; | |
| object = toObject(object); | |
| if ((isArr || !isCommon) && !(key in object)) { | |
| object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1)); | |
| if (object == null) { | |
| return false; | |
| } | |
| key = last(path); | |
| object = toObject(object); | |
| } | |
| return object[key] === srcValue | |
| ? (srcValue !== undefined || (key in object)) | |
| : baseIsEqual(srcValue, object[key], undefined, true); | |
| }; | |
| } | |
| /** | |
| * The base implementation of `_.merge` without support for argument juggling, | |
| * multiple sources, and `this` binding `customizer` functions. | |
| * | |
| * @private | |
| * @param {Object} object The destination object. | |
| * @param {Object} source The source object. | |
| * @param {Function} [customizer] The function to customize merged values. | |
| * @param {Array} [stackA=[]] Tracks traversed source objects. | |
| * @param {Array} [stackB=[]] Associates values with source counterparts. | |
| * @returns {Object} Returns `object`. | |
| */ | |
| function baseMerge(object, source, customizer, stackA, stackB) { | |
| if (!isObject(object)) { | |
| return object; | |
| } | |
| var isSrcArr = isArrayLike(source) && (isArray(source) || isTypedArray(source)), | |
| props = isSrcArr ? undefined : keys(source); | |
| arrayEach(props || source, function(srcValue, key) { | |
| if (props) { | |
| key = srcValue; | |
| srcValue = source[key]; | |
| } | |
| if (isObjectLike(srcValue)) { | |
| stackA || (stackA = []); | |
| stackB || (stackB = []); | |
| baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB); | |
| } | |
| else { | |
| var value = object[key], | |
| result = customizer ? customizer(value, srcValue, key, object, source) : undefined, | |
| isCommon = result === undefined; | |
| if (isCommon) { | |
| result = srcValue; | |
| } | |
| if ((result !== undefined || (isSrcArr && !(key in object))) && | |
| (isCommon || (result === result ? (result !== value) : (value === value)))) { | |
| object[key] = result; | |
| } | |
| } | |
| }); | |
| return object; | |
| } | |
| /** | |
| * A specialized version of `baseMerge` for arrays and objects which performs | |
| * deep merges and tracks traversed objects enabling objects with circular | |
| * references to be merged. | |
| * | |
| * @private | |
| * @param {Object} object The destination object. | |
| * @param {Object} source The source object. | |
| * @param {string} key The key of the value to merge. | |
| * @param {Function} mergeFunc The function to merge values. | |
| * @param {Function} [customizer] The function to customize merged values. | |
| * @param {Array} [stackA=[]] Tracks traversed source objects. | |
| * @param {Array} [stackB=[]] Associates values with source counterparts. | |
| * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. | |
| */ | |
| function baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) { | |
| var length = stackA.length, | |
| srcValue = source[key]; | |
| while (length--) { | |
| if (stackA[length] == srcValue) { | |
| object[key] = stackB[length]; | |
| return; | |
| } | |
| } | |
| var value = object[key], | |
| result = customizer ? customizer(value, srcValue, key, object, source) : undefined, | |
| isCommon = result === undefined; | |
| if (isCommon) { | |
| result = srcValue; | |
| if (isArrayLike(srcValue) && (isArray(srcValue) || isTypedArray(srcValue))) { | |
| result = isArray(value) | |
| ? value | |
| : (isArrayLike(value) ? arrayCopy(value) : []); | |
| } | |
| else if (isPlainObject(srcValue) || isArguments(srcValue)) { | |
| result = isArguments(value) | |
| ? toPlainObject(value) | |
| : (isPlainObject(value) ? value : {}); | |
| } | |
| else { | |
| isCommon = false; | |
| } | |
| } | |
| // Add the source value to the stack of traversed objects and associate | |
| // it with its merged value. | |
| stackA.push(srcValue); | |
| stackB.push(result); | |
| if (isCommon) { | |
| // Recursively merge objects and arrays (susceptible to call stack limits). | |
| object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB); | |
| } else if (result === result ? (result !== value) : (value === value)) { | |
| object[key] = result; | |
| } | |
| } | |
| /** | |
| * The base implementation of `_.property` without support for deep paths. | |
| * | |
| * @private | |
| * @param {string} key The key of the property to get. | |
| * @returns {Function} Returns the new function. | |
| */ | |
| function baseProperty(key) { | |
| return function(object) { | |
| return object == null ? undefined : object[key]; | |
| }; | |
| } | |
| /** | |
| * A specialized version of `baseProperty` which supports deep paths. | |
| * | |
| * @private | |
| * @param {Array|string} path The path of the property to get. | |
| * @returns {Function} Returns the new function. | |
| */ | |
| function basePropertyDeep(path) { | |
| var pathKey = (path + ''); | |
| path = toPath(path); | |
| return function(object) { | |
| return baseGet(object, path, pathKey); | |
| }; | |
| } | |
| /** | |
| * The base implementation of `_.pullAt` without support for individual | |
| * index arguments and capturing the removed elements. | |
| * | |
| * @private | |
| * @param {Array} array The array to modify. | |
| * @param {number[]} indexes The indexes of elements to remove. | |
| * @returns {Array} Returns `array`. | |
| */ | |
| function basePullAt(array, indexes) { | |
| var length = array ? indexes.length : 0; | |
| while (length--) { | |
| var index = indexes[length]; | |
| if (index != previous && isIndex(index)) { | |
| var previous = index; | |
| splice.call(array, index, 1); | |
| } | |
| } | |
| return array; | |
| } | |
| /** | |
| * The base implementation of `_.random` without support for argument juggling | |
| * and returning floating-point numbers. | |
| * | |
| * @private | |
| * @param {number} min The minimum possible value. | |
| * @param {number} max The maximum possible value. | |
| * @returns {number} Returns the random number. | |
| */ | |
| function baseRandom(min, max) { | |
| return min + nativeFloor(nativeRandom() * (max - min + 1)); | |
| } | |
| /** | |
| * The base implementation of `_.reduce` and `_.reduceRight` without support | |
| * for callback shorthands and `this` binding, which iterates over `collection` | |
| * using the provided `eachFunc`. | |
| * | |
| * @private | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @param {*} accumulator The initial value. | |
| * @param {boolean} initFromCollection Specify using the first or last element | |
| * of `collection` as the initial value. | |
| * @param {Function} eachFunc The function to iterate over `collection`. | |
| * @returns {*} Returns the accumulated value. | |
| */ | |
| function baseReduce(collection, iteratee, accumulator, initFromCollection, eachFunc) { | |
| eachFunc(collection, function(value, index, collection) { | |
| accumulator = initFromCollection | |
| ? (initFromCollection = false, value) | |
| : iteratee(accumulator, value, index, collection); | |
| }); | |
| return accumulator; | |
| } | |
| /** | |
| * The base implementation of `setData` without support for hot loop detection. | |
| * | |
| * @private | |
| * @param {Function} func The function to associate metadata with. | |
| * @param {*} data The metadata. | |
| * @returns {Function} Returns `func`. | |
| */ | |
| var baseSetData = !metaMap ? identity : function(func, data) { | |
| metaMap.set(func, data); | |
| return func; | |
| }; | |
| /** | |
| * The base implementation of `_.slice` without an iteratee call guard. | |
| * | |
| * @private | |
| * @param {Array} array The array to slice. | |
| * @param {number} [start=0] The start position. | |
| * @param {number} [end=array.length] The end position. | |
| * @returns {Array} Returns the slice of `array`. | |
| */ | |
| function baseSlice(array, start, end) { | |
| var index = -1, | |
| length = array.length; | |
| start = start == null ? 0 : (+start || 0); | |
| if (start < 0) { | |
| start = -start > length ? 0 : (length + start); | |
| } | |
| end = (end === undefined || end > length) ? length : (+end || 0); | |
| if (end < 0) { | |
| end += length; | |
| } | |
| length = start > end ? 0 : ((end - start) >>> 0); | |
| start >>>= 0; | |
| var result = Array(length); | |
| while (++index < length) { | |
| result[index] = array[index + start]; | |
| } | |
| return result; | |
| } | |
| /** | |
| * The base implementation of `_.some` without support for callback shorthands | |
| * and `this` binding. | |
| * | |
| * @private | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function} predicate The function invoked per iteration. | |
| * @returns {boolean} Returns `true` if any element passes the predicate check, | |
| * else `false`. | |
| */ | |
| function baseSome(collection, predicate) { | |
| var result; | |
| baseEach(collection, function(value, index, collection) { | |
| result = predicate(value, index, collection); | |
| return !result; | |
| }); | |
| return !!result; | |
| } | |
| /** | |
| * The base implementation of `_.sortBy` which uses `comparer` to define | |
| * the sort order of `array` and replaces criteria objects with their | |
| * corresponding values. | |
| * | |
| * @private | |
| * @param {Array} array The array to sort. | |
| * @param {Function} comparer The function to define sort order. | |
| * @returns {Array} Returns `array`. | |
| */ | |
| function baseSortBy(array, comparer) { | |
| var length = array.length; | |
| array.sort(comparer); | |
| while (length--) { | |
| array[length] = array[length].value; | |
| } | |
| return array; | |
| } | |
| /** | |
| * The base implementation of `_.sortByOrder` without param guards. | |
| * | |
| * @private | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. | |
| * @param {boolean[]} orders The sort orders of `iteratees`. | |
| * @returns {Array} Returns the new sorted array. | |
| */ | |
| function baseSortByOrder(collection, iteratees, orders) { | |
| var callback = getCallback(), | |
| index = -1; | |
| iteratees = arrayMap(iteratees, function(iteratee) { return callback(iteratee); }); | |
| var result = baseMap(collection, function(value) { | |
| var criteria = arrayMap(iteratees, function(iteratee) { return iteratee(value); }); | |
| return { 'criteria': criteria, 'index': ++index, 'value': value }; | |
| }); | |
| return baseSortBy(result, function(object, other) { | |
| return compareMultiple(object, other, orders); | |
| }); | |
| } | |
| /** | |
| * The base implementation of `_.sum` without support for callback shorthands | |
| * and `this` binding. | |
| * | |
| * @private | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @returns {number} Returns the sum. | |
| */ | |
| function baseSum(collection, iteratee) { | |
| var result = 0; | |
| baseEach(collection, function(value, index, collection) { | |
| result += +iteratee(value, index, collection) || 0; | |
| }); | |
| return result; | |
| } | |
| /** | |
| * The base implementation of `_.uniq` without support for callback shorthands | |
| * and `this` binding. | |
| * | |
| * @private | |
| * @param {Array} array The array to inspect. | |
| * @param {Function} [iteratee] The function invoked per iteration. | |
| * @returns {Array} Returns the new duplicate free array. | |
| */ | |
| function baseUniq(array, iteratee) { | |
| var index = -1, | |
| indexOf = getIndexOf(), | |
| length = array.length, | |
| isCommon = indexOf === baseIndexOf, | |
| isLarge = isCommon && length >= LARGE_ARRAY_SIZE, | |
| seen = isLarge ? createCache() : null, | |
| result = []; | |
| if (seen) { | |
| indexOf = cacheIndexOf; | |
| isCommon = false; | |
| } else { | |
| isLarge = false; | |
| seen = iteratee ? [] : result; | |
| } | |
| outer: | |
| while (++index < length) { | |
| var value = array[index], | |
| computed = iteratee ? iteratee(value, index, array) : value; | |
| if (isCommon && value === value) { | |
| var seenIndex = seen.length; | |
| while (seenIndex--) { | |
| if (seen[seenIndex] === computed) { | |
| continue outer; | |
| } | |
| } | |
| if (iteratee) { | |
| seen.push(computed); | |
| } | |
| result.push(value); | |
| } | |
| else if (indexOf(seen, computed, 0) < 0) { | |
| if (iteratee || isLarge) { | |
| seen.push(computed); | |
| } | |
| result.push(value); | |
| } | |
| } | |
| return result; | |
| } | |
| /** | |
| * The base implementation of `_.values` and `_.valuesIn` which creates an | |
| * array of `object` property values corresponding to the property names | |
| * of `props`. | |
| * | |
| * @private | |
| * @param {Object} object The object to query. | |
| * @param {Array} props The property names to get values for. | |
| * @returns {Object} Returns the array of property values. | |
| */ | |
| function baseValues(object, props) { | |
| var index = -1, | |
| length = props.length, | |
| result = Array(length); | |
| while (++index < length) { | |
| result[index] = object[props[index]]; | |
| } | |
| return result; | |
| } | |
| /** | |
| * The base implementation of `_.dropRightWhile`, `_.dropWhile`, `_.takeRightWhile`, | |
| * and `_.takeWhile` without support for callback shorthands and `this` binding. | |
| * | |
| * @private | |
| * @param {Array} array The array to query. | |
| * @param {Function} predicate The function invoked per iteration. | |
| * @param {boolean} [isDrop] Specify dropping elements instead of taking them. | |
| * @param {boolean} [fromRight] Specify iterating from right to left. | |
| * @returns {Array} Returns the slice of `array`. | |
| */ | |
| function baseWhile(array, predicate, isDrop, fromRight) { | |
| var length = array.length, | |
| index = fromRight ? length : -1; | |
| while ((fromRight ? index-- : ++index < length) && predicate(array[index], index, array)) {} | |
| return isDrop | |
| ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length)) | |
| : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index)); | |
| } | |
| /** | |
| * The base implementation of `wrapperValue` which returns the result of | |
| * performing a sequence of actions on the unwrapped `value`, where each | |
| * successive action is supplied the return value of the previous. | |
| * | |
| * @private | |
| * @param {*} value The unwrapped value. | |
| * @param {Array} actions Actions to peform to resolve the unwrapped value. | |
| * @returns {*} Returns the resolved value. | |
| */ | |
| function baseWrapperValue(value, actions) { | |
| var result = value; | |
| if (result instanceof LazyWrapper) { | |
| result = result.value(); | |
| } | |
| var index = -1, | |
| length = actions.length; | |
| while (++index < length) { | |
| var action = actions[index]; | |
| result = action.func.apply(action.thisArg, arrayPush([result], action.args)); | |
| } | |
| return result; | |
| } | |
| /** | |
| * Performs a binary search of `array` to determine the index at which `value` | |
| * should be inserted into `array` in order to maintain its sort order. | |
| * | |
| * @private | |
| * @param {Array} array The sorted array to inspect. | |
| * @param {*} value The value to evaluate. | |
| * @param {boolean} [retHighest] Specify returning the highest qualified index. | |
| * @returns {number} Returns the index at which `value` should be inserted | |
| * into `array`. | |
| */ | |
| function binaryIndex(array, value, retHighest) { | |
| var low = 0, | |
| high = array ? array.length : low; | |
| if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) { | |
| while (low < high) { | |
| var mid = (low + high) >>> 1, | |
| computed = array[mid]; | |
| if ((retHighest ? (computed <= value) : (computed < value)) && computed !== null) { | |
| low = mid + 1; | |
| } else { | |
| high = mid; | |
| } | |
| } | |
| return high; | |
| } | |
| return binaryIndexBy(array, value, identity, retHighest); | |
| } | |
| /** | |
| * This function is like `binaryIndex` except that it invokes `iteratee` for | |
| * `value` and each element of `array` to compute their sort ranking. The | |
| * iteratee is invoked with one argument; (value). | |
| * | |
| * @private | |
| * @param {Array} array The sorted array to inspect. | |
| * @param {*} value The value to evaluate. | |
| * @param {Function} iteratee The function invoked per iteration. | |
| * @param {boolean} [retHighest] Specify returning the highest qualified index. | |
| * @returns {number} Returns the index at which `value` should be inserted | |
| * into `array`. | |
| */ | |
| function binaryIndexBy(array, value, iteratee, retHighest) { | |
| value = iteratee(value); | |
| var low = 0, | |
| high = array ? array.length : 0, | |
| valIsNaN = value !== value, | |
| valIsNull = value === null, | |
| valIsUndef = value === undefined; | |
| while (low < high) { | |
| var mid = nativeFloor((low + high) / 2), | |
| computed = iteratee(array[mid]), | |
| isDef = computed !== undefined, | |
| isReflexive = computed === computed; | |
| if (valIsNaN) { | |
| var setLow = isReflexive || retHighest; | |
| } else if (valIsNull) { | |
| setLow = isReflexive && isDef && (retHighest || computed != null); | |
| } else if (valIsUndef) { | |
| setLow = isReflexive && (retHighest || isDef); | |
| } else if (computed == null) { | |
| setLow = false; | |
| } else { | |
| setLow = retHighest ? (computed <= value) : (computed < value); | |
| } | |
| if (setLow) { | |
| low = mid + 1; | |
| } else { | |
| high = mid; | |
| } | |
| } | |
| return nativeMin(high, MAX_ARRAY_INDEX); | |
| } | |
| /** | |
| * A specialized version of `baseCallback` which only supports `this` binding | |
| * and specifying the number of arguments to provide to `func`. | |
| * | |
| * @private | |
| * @param {Function} func The function to bind. | |
| * @param {*} thisArg The `this` binding of `func`. | |
| * @param {number} [argCount] The number of arguments to provide to `func`. | |
| * @returns {Function} Returns the callback. | |
| */ | |
| function bindCallback(func, thisArg, argCount) { | |
| if (typeof func != 'function') { | |
| return identity; | |
| } | |
| if (thisArg === undefined) { | |
| return func; | |
| } | |
| switch (argCount) { | |
| case 1: return function(value) { | |
| return func.call(thisArg, value); | |
| }; | |
| case 3: return function(value, index, collection) { | |
| return func.call(thisArg, value, index, collection); | |
| }; | |
| case 4: return function(accumulator, value, index, collection) { | |
| return func.call(thisArg, accumulator, value, index, collection); | |
| }; | |
| case 5: return function(value, other, key, object, source) { | |
| return func.call(thisArg, value, other, key, object, source); | |
| }; | |
| } | |
| return function() { | |
| return func.apply(thisArg, arguments); | |
| }; | |
| } | |
| /** | |
| * Creates a clone of the given array buffer. | |
| * | |
| * @private | |
| * @param {ArrayBuffer} buffer The array buffer to clone. | |
| * @returns {ArrayBuffer} Returns the cloned array buffer. | |
| */ | |
| function bufferClone(buffer) { | |
| var result = new ArrayBuffer(buffer.byteLength), | |
| view = new Uint8Array(result); | |
| view.set(new Uint8Array(buffer)); | |
| return result; | |
| } | |
| /** | |
| * Creates an array that is the composition of partially applied arguments, | |
| * placeholders, and provided arguments into a single array of arguments. | |
| * | |
| * @private | |
| * @param {Array|Object} args The provided arguments. | |
| * @param {Array} partials The arguments to prepend to those provided. | |
| * @param {Array} holders The `partials` placeholder indexes. | |
| * @returns {Array} Returns the new array of composed arguments. | |
| */ | |
| function composeArgs(args, partials, holders) { | |
| var holdersLength = holders.length, | |
| argsIndex = -1, | |
| argsLength = nativeMax(args.length - holdersLength, 0), | |
| leftIndex = -1, | |
| leftLength = partials.length, | |
| result = Array(leftLength + argsLength); | |
| while (++leftIndex < leftLength) { | |
| result[leftIndex] = partials[leftIndex]; | |
| } | |
| while (++argsIndex < holdersLength) { | |
| result[holders[argsIndex]] = args[argsIndex]; | |
| } | |
| while (argsLength--) { | |
| result[leftIndex++] = args[argsIndex++]; | |
| } | |
| return result; | |
| } | |
| /** | |
| * This function is like `composeArgs` except that the arguments composition | |
| * is tailored for `_.partialRight`. | |
| * | |
| * @private | |
| * @param {Array|Object} args The provided arguments. | |
| * @param {Array} partials The arguments to append to those provided. | |
| * @param {Array} holders The `partials` placeholder indexes. | |
| * @returns {Array} Returns the new array of composed arguments. | |
| */ | |
| function composeArgsRight(args, partials, holders) { | |
| var holdersIndex = -1, | |
| holdersLength = holders.length, | |
| argsIndex = -1, | |
| argsLength = nativeMax(args.length - holdersLength, 0), | |
| rightIndex = -1, | |
| rightLength = partials.length, | |
| result = Array(argsLength + rightLength); | |
| while (++argsIndex < argsLength) { | |
| result[argsIndex] = args[argsIndex]; | |
| } | |
| var offset = argsIndex; | |
| while (++rightIndex < rightLength) { | |
| result[offset + rightIndex] = partials[rightIndex]; | |
| } | |
| while (++holdersIndex < holdersLength) { | |
| result[offset + holders[holdersIndex]] = args[argsIndex++]; | |
| } | |
| return result; | |
| } | |
| /** | |
| * Creates a `_.countBy`, `_.groupBy`, `_.indexBy`, or `_.partition` function. | |
| * | |
| * @private | |
| * @param {Function} setter The function to set keys and values of the accumulator object. | |
| * @param {Function} [initializer] The function to initialize the accumulator object. | |
| * @returns {Function} Returns the new aggregator function. | |
| */ | |
| function createAggregator(setter, initializer) { | |
| return function(collection, iteratee, thisArg) { | |
| var result = initializer ? initializer() : {}; | |
| iteratee = getCallback(iteratee, thisArg, 3); | |
| if (isArray(collection)) { | |
| var index = -1, | |
| length = collection.length; | |
| while (++index < length) { | |
| var value = collection[index]; | |
| setter(result, value, iteratee(value, index, collection), collection); | |
| } | |
| } else { | |
| baseEach(collection, function(value, key, collection) { | |
| setter(result, value, iteratee(value, key, collection), collection); | |
| }); | |
| } | |
| return result; | |
| }; | |
| } | |
| /** | |
| * Creates a `_.assign`, `_.defaults`, or `_.merge` function. | |
| * | |
| * @private | |
| * @param {Function} assigner The function to assign values. | |
| * @returns {Function} Returns the new assigner function. | |
| */ | |
| function createAssigner(assigner) { | |
| return restParam(function(object, sources) { | |
| var index = -1, | |
| length = object == null ? 0 : sources.length, | |
| customizer = length > 2 ? sources[length - 2] : undefined, | |
| guard = length > 2 ? sources[2] : undefined, | |
| thisArg = length > 1 ? sources[length - 1] : undefined; | |
| if (typeof customizer == 'function') { | |
| customizer = bindCallback(customizer, thisArg, 5); | |
| length -= 2; | |
| } else { | |
| customizer = typeof thisArg == 'function' ? thisArg : undefined; | |
| length -= (customizer ? 1 : 0); | |
| } | |
| if (guard && isIterateeCall(sources[0], sources[1], guard)) { | |
| customizer = length < 3 ? undefined : customizer; | |
| length = 1; | |
| } | |
| while (++index < length) { | |
| var source = sources[index]; | |
| if (source) { | |
| assigner(object, source, customizer); | |
| } | |
| } | |
| return object; | |
| }); | |
| } | |
| /** | |
| * Creates a `baseEach` or `baseEachRight` function. | |
| * | |
| * @private | |
| * @param {Function} eachFunc The function to iterate over a collection. | |
| * @param {boolean} [fromRight] Specify iterating from right to left. | |
| * @returns {Function} Returns the new base function. | |
| */ | |
| function createBaseEach(eachFunc, fromRight) { | |
| return function(collection, iteratee) { | |
| var length = collection ? getLength(collection) : 0; | |
| if (!isLength(length)) { | |
| return eachFunc(collection, iteratee); | |
| } | |
| var index = fromRight ? length : -1, | |
| iterable = toObject(collection); | |
| while ((fromRight ? index-- : ++index < length)) { | |
| if (iteratee(iterable[index], index, iterable) === false) { | |
| break; | |
| } | |
| } | |
| return collection; | |
| }; | |
| } | |
| /** | |
| * Creates a base function for `_.forIn` or `_.forInRight`. | |
| * | |
| * @private | |
| * @param {boolean} [fromRight] Specify iterating from right to left. | |
| * @returns {Function} Returns the new base function. | |
| */ | |
| function createBaseFor(fromRight) { | |
| return function(object, iteratee, keysFunc) { | |
| var iterable = toObject(object), | |
| props = keysFunc(object), | |
| length = props.length, | |
| index = fromRight ? length : -1; | |
| while ((fromRight ? index-- : ++index < length)) { | |
| var key = props[index]; | |
| if (iteratee(iterable[key], key, iterable) === false) { | |
| break; | |
| } | |
| } | |
| return object; | |
| }; | |
| } | |
| /** | |
| * Creates a function that wraps `func` and invokes it with the `this` | |
| * binding of `thisArg`. | |
| * | |
| * @private | |
| * @param {Function} func The function to bind. | |
| * @param {*} [thisArg] The `this` binding of `func`. | |
| * @returns {Function} Returns the new bound function. | |
| */ | |
| function createBindWrapper(func, thisArg) { | |
| var Ctor = createCtorWrapper(func); | |
| function wrapper() { | |
| var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; | |
| return fn.apply(thisArg, arguments); | |
| } | |
| return wrapper; | |
| } | |
| /** | |
| * Creates a `Set` cache object to optimize linear searches of large arrays. | |
| * | |
| * @private | |
| * @param {Array} [values] The values to cache. | |
| * @returns {null|Object} Returns the new cache object if `Set` is supported, else `null`. | |
| */ | |
| function createCache(values) { | |
| return (nativeCreate && Set) ? new SetCache(values) : null; | |
| } | |
| /** | |
| * Creates a function that produces compound words out of the words in a | |
| * given string. | |
| * | |
| * @private | |
| * @param {Function} callback The function to combine each word. | |
| * @returns {Function} Returns the new compounder function. | |
| */ | |
| function createCompounder(callback) { | |
| return function(string) { | |
| var index = -1, | |
| array = words(deburr(string)), | |
| length = array.length, | |
| result = ''; | |
| while (++index < length) { | |
| result = callback(result, array[index], index); | |
| } | |
| return result; | |
| }; | |
| } | |
| /** | |
| * Creates a function that produces an instance of `Ctor` regardless of | |
| * whether it was invoked as part of a `new` expression or by `call` or `apply`. | |
| * | |
| * @private | |
| * @param {Function} Ctor The constructor to wrap. | |
| * @returns {Function} Returns the new wrapped function. | |
| */ | |
| function createCtorWrapper(Ctor) { | |
| return function() { | |
| // Use a `switch` statement to work with class constructors. | |
| // See http://ecma-international.org/ecma-262/6.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist | |
| // for more details. | |
| var args = arguments; | |
| switch (args.length) { | |
| case 0: return new Ctor; | |
| case 1: return new Ctor(args[0]); | |
| case 2: return new Ctor(args[0], args[1]); | |
| case 3: return new Ctor(args[0], args[1], args[2]); | |
| case 4: return new Ctor(args[0], args[1], args[2], args[3]); | |
| case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); | |
| case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); | |
| case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); | |
| } | |
| var thisBinding = baseCreate(Ctor.prototype), | |
| result = Ctor.apply(thisBinding, args); | |
| // Mimic the constructor's `return` behavior. | |
| // See https://es5.github.io/#x13.2.2 for more details. | |
| return isObject(result) ? result : thisBinding; | |
| }; | |
| } | |
| /** | |
| * Creates a `_.curry` or `_.curryRight` function. | |
| * | |
| * @private | |
| * @param {boolean} flag The curry bit flag. | |
| * @returns {Function} Returns the new curry function. | |
| */ | |
| function createCurry(flag) { | |
| function curryFunc(func, arity, guard) { | |
| if (guard && isIterateeCall(func, arity, guard)) { | |
| arity = undefined; | |
| } | |
| var result = createWrapper(func, flag, undefined, undefined, undefined, undefined, undefined, arity); | |
| result.placeholder = curryFunc.placeholder; | |
| return result; | |
| } | |
| return curryFunc; | |
| } | |
| /** | |
| * Creates a `_.defaults` or `_.defaultsDeep` function. | |
| * | |
| * @private | |
| * @param {Function} assigner The function to assign values. | |
| * @param {Function} customizer The function to customize assigned values. | |
| * @returns {Function} Returns the new defaults function. | |
| */ | |
| function createDefaults(assigner, customizer) { | |
| return restParam(function(args) { | |
| var object = args[0]; | |
| if (object == null) { | |
| return object; | |
| } | |
| args.push(customizer); | |
| return assigner.apply(undefined, args); | |
| }); | |
| } | |
| /** | |
| * Creates a `_.max` or `_.min` function. | |
| * | |
| * @private | |
| * @param {Function} comparator The function used to compare values. | |
| * @param {*} exValue The initial extremum value. | |
| * @returns {Function} Returns the new extremum function. | |
| */ | |
| function createExtremum(comparator, exValue) { | |
| return function(collection, iteratee, thisArg) { | |
| if (thisArg && isIterateeCall(collection, iteratee, thisArg)) { | |
| iteratee = undefined; | |
| } | |
| iteratee = getCallback(iteratee, thisArg, 3); | |
| if (iteratee.length == 1) { | |
| collection = isArray(collection) ? collection : toIterable(collection); | |
| var result = arrayExtremum(collection, iteratee, comparator, exValue); | |
| if (!(collection.length && result === exValue)) { | |
| return result; | |
| } | |
| } | |
| return baseExtremum(collection, iteratee, comparator, exValue); | |
| }; | |
| } | |
| /** | |
| * Creates a `_.find` or `_.findLast` function. | |
| * | |
| * @private | |
| * @param {Function} eachFunc The function to iterate over a collection. | |
| * @param {boolean} [fromRight] Specify iterating from right to left. | |
| * @returns {Function} Returns the new find function. | |
| */ | |
| function createFind(eachFunc, fromRight) { | |
| return function(collection, predicate, thisArg) { | |
| predicate = getCallback(predicate, thisArg, 3); | |
| if (isArray(collection)) { | |
| var index = baseFindIndex(collection, predicate, fromRight); | |
| return index > -1 ? collection[index] : undefined; | |
| } | |
| return baseFind(collection, predicate, eachFunc); | |
| }; | |
| } | |
| /** | |
| * Creates a `_.findIndex` or `_.findLastIndex` function. | |
| * | |
| * @private | |
| * @param {boolean} [fromRight] Specify iterating from right to left. | |
| * @returns {Function} Returns the new find function. | |
| */ | |
| function createFindIndex(fromRight) { | |
| return function(array, predicate, thisArg) { | |
| if (!(array && array.length)) { | |
| return -1; | |
| } | |
| predicate = getCallback(predicate, thisArg, 3); | |
| return baseFindIndex(array, predicate, fromRight); | |
| }; | |
| } | |
| /** | |
| * Creates a `_.findKey` or `_.findLastKey` function. | |
| * | |
| * @private | |
| * @param {Function} objectFunc The function to iterate over an object. | |
| * @returns {Function} Returns the new find function. | |
| */ | |
| function createFindKey(objectFunc) { | |
| return function(object, predicate, thisArg) { | |
| predicate = getCallback(predicate, thisArg, 3); | |
| return baseFind(object, predicate, objectFunc, true); | |
| }; | |
| } | |
| /** | |
| * Creates a `_.flow` or `_.flowRight` function. | |
| * | |
| * @private | |
| * @param {boolean} [fromRight] Specify iterating from right to left. | |
| * @returns {Function} Returns the new flow function. | |
| */ | |
| function createFlow(fromRight) { | |
| return function() { | |
| var wrapper, | |
| length = arguments.length, | |
| index = fromRight ? length : -1, | |
| leftIndex = 0, | |
| funcs = Array(length); | |
| while ((fromRight ? index-- : ++index < length)) { | |
| var func = funcs[leftIndex++] = arguments[index]; | |
| if (typeof func != 'function') { | |
| throw new TypeError(FUNC_ERROR_TEXT); | |
| } | |
| if (!wrapper && LodashWrapper.prototype.thru && getFuncName(func) == 'wrapper') { | |
| wrapper = new LodashWrapper([], true); | |
| } | |
| } | |
| index = wrapper ? -1 : length; | |
| while (++index < length) { | |
| func = funcs[index]; | |
| var funcName = getFuncName(func), | |
| data = funcName == 'wrapper' ? getData(func) : undefined; | |
| if (data && isLaziable(data[0]) && data[1] == (ARY_FLAG | CURRY_FLAG | PARTIAL_FLAG | REARG_FLAG) && !data[4].length && data[9] == 1) { | |
| wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]); | |
| } else { | |
| wrapper = (func.length == 1 && isLaziable(func)) ? wrapper[funcName]() : wrapper.thru(func); | |
| } | |
| } | |
| return function() { | |
| var args = arguments, | |
| value = args[0]; | |
| if (wrapper && args.length == 1 && isArray(value) && value.length >= LARGE_ARRAY_SIZE) { | |
| return wrapper.plant(value).value(); | |
| } | |
| var index = 0, | |
| result = length ? funcs[index].apply(this, args) : value; | |
| while (++index < length) { | |
| result = funcs[index].call(this, result); | |
| } | |
| return result; | |
| }; | |
| }; | |
| } | |
| /** | |
| * Creates a function for `_.forEach` or `_.forEachRight`. | |
| * | |
| * @private | |
| * @param {Function} arrayFunc The function to iterate over an array. | |
| * @param {Function} eachFunc The function to iterate over a collection. | |
| * @returns {Function} Returns the new each function. | |
| */ | |
| function createForEach(arrayFunc, eachFunc) { | |
| return function(collection, iteratee, thisArg) { | |
| return (typeof iteratee == 'function' && thisArg === undefined && isArray(collection)) | |
| ? arrayFunc(collection, iteratee) | |
| : eachFunc(collection, bindCallback(iteratee, thisArg, 3)); | |
| }; | |
| } | |
| /** | |
| * Creates a function for `_.forIn` or `_.forInRight`. | |
| * | |
| * @private | |
| * @param {Function} objectFunc The function to iterate over an object. | |
| * @returns {Function} Returns the new each function. | |
| */ | |
| function createForIn(objectFunc) { | |
| return function(object, iteratee, thisArg) { | |
| if (typeof iteratee != 'function' || thisArg !== undefined) { | |
| iteratee = bindCallback(iteratee, thisArg, 3); | |
| } | |
| return objectFunc(object, iteratee, keysIn); | |
| }; | |
| } | |
| /** | |
| * Creates a function for `_.forOwn` or `_.forOwnRight`. | |
| * | |
| * @private | |
| * @param {Function} objectFunc The function to iterate over an object. | |
| * @returns {Function} Returns the new each function. | |
| */ | |
| function createForOwn(objectFunc) { | |
| return function(object, iteratee, thisArg) { | |
| if (typeof iteratee != 'function' || thisArg !== undefined) { | |
| iteratee = bindCallback(iteratee, thisArg, 3); | |
| } | |
| return objectFunc(object, iteratee); | |
| }; | |
| } | |
| /** | |
| * Creates a function for `_.mapKeys` or `_.mapValues`. | |
| * | |
| * @private | |
| * @param {boolean} [isMapKeys] Specify mapping keys instead of values. | |
| * @returns {Function} Returns the new map function. | |
| */ | |
| function createObjectMapper(isMapKeys) { | |
| return function(object, iteratee, thisArg) { | |
| var result = {}; | |
| iteratee = getCallback(iteratee, thisArg, 3); | |
| baseForOwn(object, function(value, key, object) { | |
| var mapped = iteratee(value, key, object); | |
| key = isMapKeys ? mapped : key; | |
| value = isMapKeys ? value : mapped; | |
| result[key] = value; | |
| }); | |
| return result; | |
| }; | |
| } | |
| /** | |
| * Creates a function for `_.padLeft` or `_.padRight`. | |
| * | |
| * @private | |
| * @param {boolean} [fromRight] Specify padding from the right. | |
| * @returns {Function} Returns the new pad function. | |
| */ | |
| function createPadDir(fromRight) { | |
| return function(string, length, chars) { | |
| string = baseToString(string); | |
| return (fromRight ? string : '') + createPadding(string, length, chars) + (fromRight ? '' : string); | |
| }; | |
| } | |
| /** | |
| * Creates a `_.partial` or `_.partialRight` function. | |
| * | |
| * @private | |
| * @param {boolean} flag The partial bit flag. | |
| * @returns {Function} Returns the new partial function. | |
| */ | |
| function createPartial(flag) { | |
| var partialFunc = restParam(function(func, partials) { | |
| var holders = replaceHolders(partials, partialFunc.placeholder); | |
| return createWrapper(func, flag, undefined, partials, holders); | |
| }); | |
| return partialFunc; | |
| } | |
| /** | |
| * Creates a function for `_.reduce` or `_.reduceRight`. | |
| * | |
| * @private | |
| * @param {Function} arrayFunc The function to iterate over an array. | |
| * @param {Function} eachFunc The function to iterate over a collection. | |
| * @returns {Function} Returns the new each function. | |
| */ | |
| function createReduce(arrayFunc, eachFunc) { | |
| return function(collection, iteratee, accumulator, thisArg) { | |
| var initFromArray = arguments.length < 3; | |
| return (typeof iteratee == 'function' && thisArg === undefined && isArray(collection)) | |
| ? arrayFunc(collection, iteratee, accumulator, initFromArray) | |
| : baseReduce(collection, getCallback(iteratee, thisArg, 4), accumulator, initFromArray, eachFunc); | |
| }; | |
| } | |
| /** | |
| * Creates a function that wraps `func` and invokes it with optional `this` | |
| * binding of, partial application, and currying. | |
| * | |
| * @private | |
| * @param {Function|string} func The function or method name to reference. | |
| * @param {number} bitmask The bitmask of flags. See `createWrapper` for more details. | |
| * @param {*} [thisArg] The `this` binding of `func`. | |
| * @param {Array} [partials] The arguments to prepend to those provided to the new function. | |
| * @param {Array} [holders] The `partials` placeholder indexes. | |
| * @param {Array} [partialsRight] The arguments to append to those provided to the new function. | |
| * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. | |
| * @param {Array} [argPos] The argument positions of the new function. | |
| * @param {number} [ary] The arity cap of `func`. | |
| * @param {number} [arity] The arity of `func`. | |
| * @returns {Function} Returns the new wrapped function. | |
| */ | |
| function createHybridWrapper(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { | |
| var isAry = bitmask & ARY_FLAG, | |
| isBind = bitmask & BIND_FLAG, | |
| isBindKey = bitmask & BIND_KEY_FLAG, | |
| isCurry = bitmask & CURRY_FLAG, | |
| isCurryBound = bitmask & CURRY_BOUND_FLAG, | |
| isCurryRight = bitmask & CURRY_RIGHT_FLAG, | |
| Ctor = isBindKey ? undefined : createCtorWrapper(func); | |
| function wrapper() { | |
| // Avoid `arguments` object use disqualifying optimizations by | |
| // converting it to an array before providing it to other functions. | |
| var length = arguments.length, | |
| index = length, | |
| args = Array(length); | |
| while (index--) { | |
| args[index] = arguments[index]; | |
| } | |
| if (partials) { | |
| args = composeArgs(args, partials, holders); | |
| } | |
| if (partialsRight) { | |
| args = composeArgsRight(args, partialsRight, holdersRight); | |
| } | |
| if (isCurry || isCurryRight) { | |
| var placeholder = wrapper.placeholder, | |
| argsHolders = replaceHolders(args, placeholder); | |
| length -= argsHolders.length; | |
| if (length < arity) { | |
| var newArgPos = argPos ? arrayCopy(argPos) : undefined, | |
| newArity = nativeMax(arity - length, 0), | |
| newsHolders = isCurry ? argsHolders : undefined, | |
| newHoldersRight = isCurry ? undefined : argsHolders, | |
| newPartials = isCurry ? args : undefined, | |
| newPartialsRight = isCurry ? undefined : args; | |
| bitmask |= (isCurry ? PARTIAL_FLAG : PARTIAL_RIGHT_FLAG); | |
| bitmask &= ~(isCurry ? PARTIAL_RIGHT_FLAG : PARTIAL_FLAG); | |
| if (!isCurryBound) { | |
| bitmask &= ~(BIND_FLAG | BIND_KEY_FLAG); | |
| } | |
| var newData = [func, bitmask, thisArg, newPartials, newsHolders, newPartialsRight, newHoldersRight, newArgPos, ary, newArity], | |
| result = createHybridWrapper.apply(undefined, newData); | |
| if (isLaziable(func)) { | |
| setData(result, newData); | |
| } | |
| result.placeholder = placeholder; | |
| return result; | |
| } | |
| } | |
| var thisBinding = isBind ? thisArg : this, | |
| fn = isBindKey ? thisBinding[func] : func; | |
| if (argPos) { | |
| args = reorder(args, argPos); | |
| } | |
| if (isAry && ary < args.length) { | |
| args.length = ary; | |
| } | |
| if (this && this !== root && this instanceof wrapper) { | |
| fn = Ctor || createCtorWrapper(func); | |
| } | |
| return fn.apply(thisBinding, args); | |
| } | |
| return wrapper; | |
| } | |
| /** | |
| * Creates the padding required for `string` based on the given `length`. | |
| * The `chars` string is truncated if the number of characters exceeds `length`. | |
| * | |
| * @private | |
| * @param {string} string The string to create padding for. | |
| * @param {number} [length=0] The padding length. | |
| * @param {string} [chars=' '] The string used as padding. | |
| * @returns {string} Returns the pad for `string`. | |
| */ | |
| function createPadding(string, length, chars) { | |
| var strLength = string.length; | |
| length = +length; | |
| if (strLength >= length || !nativeIsFinite(length)) { | |
| return ''; | |
| } | |
| var padLength = length - strLength; | |
| chars = chars == null ? ' ' : (chars + ''); | |
| return repeat(chars, nativeCeil(padLength / chars.length)).slice(0, padLength); | |
| } | |
| /** | |
| * Creates a function that wraps `func` and invokes it with the optional `this` | |
| * binding of `thisArg` and the `partials` prepended to those provided to | |
| * the wrapper. | |
| * | |
| * @private | |
| * @param {Function} func The function to partially apply arguments to. | |
| * @param {number} bitmask The bitmask of flags. See `createWrapper` for more details. | |
| * @param {*} thisArg The `this` binding of `func`. | |
| * @param {Array} partials The arguments to prepend to those provided to the new function. | |
| * @returns {Function} Returns the new bound function. | |
| */ | |
| function createPartialWrapper(func, bitmask, thisArg, partials) { | |
| var isBind = bitmask & BIND_FLAG, | |
| Ctor = createCtorWrapper(func); | |
| function wrapper() { | |
| // Avoid `arguments` object use disqualifying optimizations by | |
| // converting it to an array before providing it `func`. | |
| var argsIndex = -1, | |
| argsLength = arguments.length, | |
| leftIndex = -1, | |
| leftLength = partials.length, | |
| args = Array(leftLength + argsLength); | |
| while (++leftIndex < leftLength) { | |
| args[leftIndex] = partials[leftIndex]; | |
| } | |
| while (argsLength--) { | |
| args[leftIndex++] = arguments[++argsIndex]; | |
| } | |
| var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; | |
| return fn.apply(isBind ? thisArg : this, args); | |
| } | |
| return wrapper; | |
| } | |
| /** | |
| * Creates a `_.ceil`, `_.floor`, or `_.round` function. | |
| * | |
| * @private | |
| * @param {string} methodName The name of the `Math` method to use when rounding. | |
| * @returns {Function} Returns the new round function. | |
| */ | |
| function createRound(methodName) { | |
| var func = Math[methodName]; | |
| return function(number, precision) { | |
| precision = precision === undefined ? 0 : (+precision || 0); | |
| if (precision) { | |
| precision = pow(10, precision); | |
| return func(number * precision) / precision; | |
| } | |
| return func(number); | |
| }; | |
| } | |
| /** | |
| * Creates a `_.sortedIndex` or `_.sortedLastIndex` function. | |
| * | |
| * @private | |
| * @param {boolean} [retHighest] Specify returning the highest qualified index. | |
| * @returns {Function} Returns the new index function. | |
| */ | |
| function createSortedIndex(retHighest) { | |
| return function(array, value, iteratee, thisArg) { | |
| var callback = getCallback(iteratee); | |
| return (iteratee == null && callback === baseCallback) | |
| ? binaryIndex(array, value, retHighest) | |
| : binaryIndexBy(array, value, callback(iteratee, thisArg, 1), retHighest); | |
| }; | |
| } | |
| /** | |
| * Creates a function that either curries or invokes `func` with optional | |
| * `this` binding and partially applied arguments. | |
| * | |
| * @private | |
| * @param {Function|string} func The function or method name to reference. | |
| * @param {number} bitmask The bitmask of flags. | |
| * The bitmask may be composed of the following flags: | |
| * 1 - `_.bind` | |
| * 2 - `_.bindKey` | |
| * 4 - `_.curry` or `_.curryRight` of a bound function | |
| * 8 - `_.curry` | |
| * 16 - `_.curryRight` | |
| * 32 - `_.partial` | |
| * 64 - `_.partialRight` | |
| * 128 - `_.rearg` | |
| * 256 - `_.ary` | |
| * @param {*} [thisArg] The `this` binding of `func`. | |
| * @param {Array} [partials] The arguments to be partially applied. | |
| * @param {Array} [holders] The `partials` placeholder indexes. | |
| * @param {Array} [argPos] The argument positions of the new function. | |
| * @param {number} [ary] The arity cap of `func`. | |
| * @param {number} [arity] The arity of `func`. | |
| * @returns {Function} Returns the new wrapped function. | |
| */ | |
| function createWrapper(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { | |
| var isBindKey = bitmask & BIND_KEY_FLAG; | |
| if (!isBindKey && typeof func != 'function') { | |
| throw new TypeError(FUNC_ERROR_TEXT); | |
| } | |
| var length = partials ? partials.length : 0; | |
| if (!length) { | |
| bitmask &= ~(PARTIAL_FLAG | PARTIAL_RIGHT_FLAG); | |
| partials = holders = undefined; | |
| } | |
| length -= (holders ? holders.length : 0); | |
| if (bitmask & PARTIAL_RIGHT_FLAG) { | |
| var partialsRight = partials, | |
| holdersRight = holders; | |
| partials = holders = undefined; | |
| } | |
| var data = isBindKey ? undefined : getData(func), | |
| newData = [func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity]; | |
| if (data) { | |
| mergeData(newData, data); | |
| bitmask = newData[1]; | |
| arity = newData[9]; | |
| } | |
| newData[9] = arity == null | |
| ? (isBindKey ? 0 : func.length) | |
| : (nativeMax(arity - length, 0) || 0); | |
| if (bitmask == BIND_FLAG) { | |
| var result = createBindWrapper(newData[0], newData[2]); | |
| } else if ((bitmask == PARTIAL_FLAG || bitmask == (BIND_FLAG | PARTIAL_FLAG)) && !newData[4].length) { | |
| result = createPartialWrapper.apply(undefined, newData); | |
| } else { | |
| result = createHybridWrapper.apply(undefined, newData); | |
| } | |
| var setter = data ? baseSetData : setData; | |
| return setter(result, newData); | |
| } | |
| /** | |
| * A specialized version of `baseIsEqualDeep` for arrays with support for | |
| * partial deep comparisons. | |
| * | |
| * @private | |
| * @param {Array} array The array to compare. | |
| * @param {Array} other The other array to compare. | |
| * @param {Function} equalFunc The function to determine equivalents of values. | |
| * @param {Function} [customizer] The function to customize comparing arrays. | |
| * @param {boolean} [isLoose] Specify performing partial comparisons. | |
| * @param {Array} [stackA] Tracks traversed `value` objects. | |
| * @param {Array} [stackB] Tracks traversed `other` objects. | |
| * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. | |
| */ | |
| function equalArrays(array, other, equalFunc, customizer, isLoose, stackA, stackB) { | |
| var index = -1, | |
| arrLength = array.length, | |
| othLength = other.length; | |
| if (arrLength != othLength && !(isLoose && othLength > arrLength)) { | |
| return false; | |
| } | |
| // Ignore non-index properties. | |
| while (++index < arrLength) { | |
| var arrValue = array[index], | |
| othValue = other[index], | |
| result = customizer ? customizer(isLoose ? othValue : arrValue, isLoose ? arrValue : othValue, index) : undefined; | |
| if (result !== undefined) { | |
| if (result) { | |
| continue; | |
| } | |
| return false; | |
| } | |
| // Recursively compare arrays (susceptible to call stack limits). | |
| if (isLoose) { | |
| if (!arraySome(other, function(othValue) { | |
| return arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB); | |
| })) { | |
| return false; | |
| } | |
| } else if (!(arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB))) { | |
| return false; | |
| } | |
| } | |
| return true; | |
| } | |
| /** | |
| * A specialized version of `baseIsEqualDeep` for comparing objects of | |
| * the same `toStringTag`. | |
| * | |
| * **Note:** This function only supports comparing values with tags of | |
| * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. | |
| * | |
| * @private | |
| * @param {Object} object The object to compare. | |
| * @param {Object} other The other object to compare. | |
| * @param {string} tag The `toStringTag` of the objects to compare. | |
| * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. | |
| */ | |
| function equalByTag(object, other, tag) { | |
| switch (tag) { | |
| case boolTag: | |
| case dateTag: | |
| // Coerce dates and booleans to numbers, dates to milliseconds and booleans | |
| // to `1` or `0` treating invalid dates coerced to `NaN` as not equal. | |
| return +object == +other; | |
| case errorTag: | |
| return object.name == other.name && object.message == other.message; | |
| case numberTag: | |
| // Treat `NaN` vs. `NaN` as equal. | |
| return (object != +object) | |
| ? other != +other | |
| : object == +other; | |
| case regexpTag: | |
| case stringTag: | |
| // Coerce regexes to strings and treat strings primitives and string | |
| // objects as equal. See https://es5.github.io/#x15.10.6.4 for more details. | |
| return object == (other + ''); | |
| } | |
| return false; | |
| } | |
| /** | |
| * A specialized version of `baseIsEqualDeep` for objects with support for | |
| * partial deep comparisons. | |
| * | |
| * @private | |
| * @param {Object} object The object to compare. | |
| * @param {Object} other The other object to compare. | |
| * @param {Function} equalFunc The function to determine equivalents of values. | |
| * @param {Function} [customizer] The function to customize comparing values. | |
| * @param {boolean} [isLoose] Specify performing partial comparisons. | |
| * @param {Array} [stackA] Tracks traversed `value` objects. | |
| * @param {Array} [stackB] Tracks traversed `other` objects. | |
| * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. | |
| */ | |
| function equalObjects(object, other, equalFunc, customizer, isLoose, stackA, stackB) { | |
| var objProps = keys(object), | |
| objLength = objProps.length, | |
| othProps = keys(other), | |
| othLength = othProps.length; | |
| if (objLength != othLength && !isLoose) { | |
| return false; | |
| } | |
| var index = objLength; | |
| while (index--) { | |
| var key = objProps[index]; | |
| if (!(isLoose ? key in other : hasOwnProperty.call(other, key))) { | |
| return false; | |
| } | |
| } | |
| var skipCtor = isLoose; | |
| while (++index < objLength) { | |
| key = objProps[index]; | |
| var objValue = object[key], | |
| othValue = other[key], | |
| result = customizer ? customizer(isLoose ? othValue : objValue, isLoose? objValue : othValue, key) : undefined; | |
| // Recursively compare objects (susceptible to call stack limits). | |
| if (!(result === undefined ? equalFunc(objValue, othValue, customizer, isLoose, stackA, stackB) : result)) { | |
| return false; | |
| } | |
| skipCtor || (skipCtor = key == 'constructor'); | |
| } | |
| if (!skipCtor) { | |
| var objCtor = object.constructor, | |
| othCtor = other.constructor; | |
| // Non `Object` object instances with different constructors are not equal. | |
| if (objCtor != othCtor && | |
| ('constructor' in object && 'constructor' in other) && | |
| !(typeof objCtor == 'function' && objCtor instanceof objCtor && | |
| typeof othCtor == 'function' && othCtor instanceof othCtor)) { | |
| return false; | |
| } | |
| } | |
| return true; | |
| } | |
| /** | |
| * Gets the appropriate "callback" function. If the `_.callback` method is | |
| * customized this function returns the custom method, otherwise it returns | |
| * the `baseCallback` function. If arguments are provided the chosen function | |
| * is invoked with them and its result is returned. | |
| * | |
| * @private | |
| * @returns {Function} Returns the chosen function or its result. | |
| */ | |
| function getCallback(func, thisArg, argCount) { | |
| var result = lodash.callback || callback; | |
| result = result === callback ? baseCallback : result; | |
| return argCount ? result(func, thisArg, argCount) : result; | |
| } | |
| /** | |
| * Gets metadata for `func`. | |
| * | |
| * @private | |
| * @param {Function} func The function to query. | |
| * @returns {*} Returns the metadata for `func`. | |
| */ | |
| var getData = !metaMap ? noop : function(func) { | |
| return metaMap.get(func); | |
| }; | |
| /** | |
| * Gets the name of `func`. | |
| * | |
| * @private | |
| * @param {Function} func The function to query. | |
| * @returns {string} Returns the function name. | |
| */ | |
| function getFuncName(func) { | |
| var result = (func.name + ''), | |
| array = realNames[result], | |
| length = array ? array.length : 0; | |
| while (length--) { | |
| var data = array[length], | |
| otherFunc = data.func; | |
| if (otherFunc == null || otherFunc == func) { | |
| return data.name; | |
| } | |
| } | |
| return result; | |
| } | |
| /** | |
| * Gets the appropriate "indexOf" function. If the `_.indexOf` method is | |
| * customized this function returns the custom method, otherwise it returns | |
| * the `baseIndexOf` function. If arguments are provided the chosen function | |
| * is invoked with them and its result is returned. | |
| * | |
| * @private | |
| * @returns {Function|number} Returns the chosen function or its result. | |
| */ | |
| function getIndexOf(collection, target, fromIndex) { | |
| var result = lodash.indexOf || indexOf; | |
| result = result === indexOf ? baseIndexOf : result; | |
| return collection ? result(collection, target, fromIndex) : result; | |
| } | |
| /** | |
| * Gets the "length" property value of `object`. | |
| * | |
| * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792) | |
| * that affects Safari on at least iOS 8.1-8.3 ARM64. | |
| * | |
| * @private | |
| * @param {Object} object The object to query. | |
| * @returns {*} Returns the "length" value. | |
| */ | |
| var getLength = baseProperty('length'); | |
| /** | |
| * Gets the propery names, values, and compare flags of `object`. | |
| * | |
| * @private | |
| * @param {Object} object The object to query. | |
| * @returns {Array} Returns the match data of `object`. | |
| */ | |
| function getMatchData(object) { | |
| var result = pairs(object), | |
| length = result.length; | |
| while (length--) { | |
| result[length][2] = isStrictComparable(result[length][1]); | |
| } | |
| return result; | |
| } | |
| /** | |
| * Gets the native function at `key` of `object`. | |
| * | |
| * @private | |
| * @param {Object} object The object to query. | |
| * @param {string} key The key of the method to get. | |
| * @returns {*} Returns the function if it's native, else `undefined`. | |
| */ | |
| function getNative(object, key) { | |
| var value = object == null ? undefined : object[key]; | |
| return isNative(value) ? value : undefined; | |
| } | |
| /** | |
| * Gets the view, applying any `transforms` to the `start` and `end` positions. | |
| * | |
| * @private | |
| * @param {number} start The start of the view. | |
| * @param {number} end The end of the view. | |
| * @param {Array} transforms The transformations to apply to the view. | |
| * @returns {Object} Returns an object containing the `start` and `end` | |
| * positions of the view. | |
| */ | |
| function getView(start, end, transforms) { | |
| var index = -1, | |
| length = transforms.length; | |
| while (++index < length) { | |
| var data = transforms[index], | |
| size = data.size; | |
| switch (data.type) { | |
| case 'drop': start += size; break; | |
| case 'dropRight': end -= size; break; | |
| case 'take': end = nativeMin(end, start + size); break; | |
| case 'takeRight': start = nativeMax(start, end - size); break; | |
| } | |
| } | |
| return { 'start': start, 'end': end }; | |
| } | |
| /** | |
| * Initializes an array clone. | |
| * | |
| * @private | |
| * @param {Array} array The array to clone. | |
| * @returns {Array} Returns the initialized clone. | |
| */ | |
| function initCloneArray(array) { | |
| var length = array.length, | |
| result = new array.constructor(length); | |
| // Add array properties assigned by `RegExp#exec`. | |
| if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { | |
| result.index = array.index; | |
| result.input = array.input; | |
| } | |
| return result; | |
| } | |
| /** | |
| * Initializes an object clone. | |
| * | |
| * @private | |
| * @param {Object} object The object to clone. | |
| * @returns {Object} Returns the initialized clone. | |
| */ | |
| function initCloneObject(object) { | |
| var Ctor = object.constructor; | |
| if (!(typeof Ctor == 'function' && Ctor instanceof Ctor)) { | |
| Ctor = Object; | |
| } | |
| return new Ctor; | |
| } | |
| /** | |
| * Initializes an object clone based on its `toStringTag`. | |
| * | |
| * **Note:** This function only supports cloning values with tags of | |
| * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. | |
| * | |
| * @private | |
| * @param {Object} object The object to clone. | |
| * @param {string} tag The `toStringTag` of the object to clone. | |
| * @param {boolean} [isDeep] Specify a deep clone. | |
| * @returns {Object} Returns the initialized clone. | |
| */ | |
| function initCloneByTag(object, tag, isDeep) { | |
| var Ctor = object.constructor; | |
| switch (tag) { | |
| case arrayBufferTag: | |
| return bufferClone(object); | |
| case boolTag: | |
| case dateTag: | |
| return new Ctor(+object); | |
| case float32Tag: case float64Tag: | |
| case int8Tag: case int16Tag: case int32Tag: | |
| case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: | |
| var buffer = object.buffer; | |
| return new Ctor(isDeep ? bufferClone(buffer) : buffer, object.byteOffset, object.length); | |
| case numberTag: | |
| case stringTag: | |
| return new Ctor(object); | |
| case regexpTag: | |
| var result = new Ctor(object.source, reFlags.exec(object)); | |
| result.lastIndex = object.lastIndex; | |
| } | |
| return result; | |
| } | |
| /** | |
| * Invokes the method at `path` on `object`. | |
| * | |
| * @private | |
| * @param {Object} object The object to query. | |
| * @param {Array|string} path The path of the method to invoke. | |
| * @param {Array} args The arguments to invoke the method with. | |
| * @returns {*} Returns the result of the invoked method. | |
| */ | |
| function invokePath(object, path, args) { | |
| if (object != null && !isKey(path, object)) { | |
| path = toPath(path); | |
| object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1)); | |
| path = last(path); | |
| } | |
| var func = object == null ? object : object[path]; | |
| return func == null ? undefined : func.apply(object, args); | |
| } | |
| /** | |
| * Checks if `value` is array-like. | |
| * | |
| * @private | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is array-like, else `false`. | |
| */ | |
| function isArrayLike(value) { | |
| return value != null && isLength(getLength(value)); | |
| } | |
| /** | |
| * Checks if `value` is a valid array-like index. | |
| * | |
| * @private | |
| * @param {*} value The value to check. | |
| * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. | |
| * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. | |
| */ | |
| function isIndex(value, length) { | |
| value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1; | |
| length = length == null ? MAX_SAFE_INTEGER : length; | |
| return value > -1 && value % 1 == 0 && value < length; | |
| } | |
| /** | |
| * Checks if the provided arguments are from an iteratee call. | |
| * | |
| * @private | |
| * @param {*} value The potential iteratee value argument. | |
| * @param {*} index The potential iteratee index or key argument. | |
| * @param {*} object The potential iteratee object argument. | |
| * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`. | |
| */ | |
| function isIterateeCall(value, index, object) { | |
| if (!isObject(object)) { | |
| return false; | |
| } | |
| var type = typeof index; | |
| if (type == 'number' | |
| ? (isArrayLike(object) && isIndex(index, object.length)) | |
| : (type == 'string' && index in object)) { | |
| var other = object[index]; | |
| return value === value ? (value === other) : (other !== other); | |
| } | |
| return false; | |
| } | |
| /** | |
| * Checks if `value` is a property name and not a property path. | |
| * | |
| * @private | |
| * @param {*} value The value to check. | |
| * @param {Object} [object] The object to query keys on. | |
| * @returns {boolean} Returns `true` if `value` is a property name, else `false`. | |
| */ | |
| function isKey(value, object) { | |
| var type = typeof value; | |
| if ((type == 'string' && reIsPlainProp.test(value)) || type == 'number') { | |
| return true; | |
| } | |
| if (isArray(value)) { | |
| return false; | |
| } | |
| var result = !reIsDeepProp.test(value); | |
| return result || (object != null && value in toObject(object)); | |
| } | |
| /** | |
| * Checks if `func` has a lazy counterpart. | |
| * | |
| * @private | |
| * @param {Function} func The function to check. | |
| * @returns {boolean} Returns `true` if `func` has a lazy counterpart, else `false`. | |
| */ | |
| function isLaziable(func) { | |
| var funcName = getFuncName(func), | |
| other = lodash[funcName]; | |
| if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { | |
| return false; | |
| } | |
| if (func === other) { | |
| return true; | |
| } | |
| var data = getData(other); | |
| return !!data && func === data[0]; | |
| } | |
| /** | |
| * Checks if `value` is a valid array-like length. | |
| * | |
| * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength). | |
| * | |
| * @private | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. | |
| */ | |
| function isLength(value) { | |
| return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; | |
| } | |
| /** | |
| * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. | |
| * | |
| * @private | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` if suitable for strict | |
| * equality comparisons, else `false`. | |
| */ | |
| function isStrictComparable(value) { | |
| return value === value && !isObject(value); | |
| } | |
| /** | |
| * Merges the function metadata of `source` into `data`. | |
| * | |
| * Merging metadata reduces the number of wrappers required to invoke a function. | |
| * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` | |
| * may be applied regardless of execution order. Methods like `_.ary` and `_.rearg` | |
| * augment function arguments, making the order in which they are executed important, | |
| * preventing the merging of metadata. However, we make an exception for a safe | |
| * common case where curried functions have `_.ary` and or `_.rearg` applied. | |
| * | |
| * @private | |
| * @param {Array} data The destination metadata. | |
| * @param {Array} source The source metadata. | |
| * @returns {Array} Returns `data`. | |
| */ | |
| function mergeData(data, source) { | |
| var bitmask = data[1], | |
| srcBitmask = source[1], | |
| newBitmask = bitmask | srcBitmask, | |
| isCommon = newBitmask < ARY_FLAG; | |
| var isCombo = | |
| (srcBitmask == ARY_FLAG && bitmask == CURRY_FLAG) || | |
| (srcBitmask == ARY_FLAG && bitmask == REARG_FLAG && data[7].length <= source[8]) || | |
| (srcBitmask == (ARY_FLAG | REARG_FLAG) && bitmask == CURRY_FLAG); | |
| // Exit early if metadata can't be merged. | |
| if (!(isCommon || isCombo)) { | |
| return data; | |
| } | |
| // Use source `thisArg` if available. | |
| if (srcBitmask & BIND_FLAG) { | |
| data[2] = source[2]; | |
| // Set when currying a bound function. | |
| newBitmask |= (bitmask & BIND_FLAG) ? 0 : CURRY_BOUND_FLAG; | |
| } | |
| // Compose partial arguments. | |
| var value = source[3]; | |
| if (value) { | |
| var partials = data[3]; | |
| data[3] = partials ? composeArgs(partials, value, source[4]) : arrayCopy(value); | |
| data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : arrayCopy(source[4]); | |
| } | |
| // Compose partial right arguments. | |
| value = source[5]; | |
| if (value) { | |
| partials = data[5]; | |
| data[5] = partials ? composeArgsRight(partials, value, source[6]) : arrayCopy(value); | |
| data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : arrayCopy(source[6]); | |
| } | |
| // Use source `argPos` if available. | |
| value = source[7]; | |
| if (value) { | |
| data[7] = arrayCopy(value); | |
| } | |
| // Use source `ary` if it's smaller. | |
| if (srcBitmask & ARY_FLAG) { | |
| data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); | |
| } | |
| // Use source `arity` if one is not provided. | |
| if (data[9] == null) { | |
| data[9] = source[9]; | |
| } | |
| // Use source `func` and merge bitmasks. | |
| data[0] = source[0]; | |
| data[1] = newBitmask; | |
| return data; | |
| } | |
| /** | |
| * Used by `_.defaultsDeep` to customize its `_.merge` use. | |
| * | |
| * @private | |
| * @param {*} objectValue The destination object property value. | |
| * @param {*} sourceValue The source object property value. | |
| * @returns {*} Returns the value to assign to the destination object. | |
| */ | |
| function mergeDefaults(objectValue, sourceValue) { | |
| return objectValue === undefined ? sourceValue : merge(objectValue, sourceValue, mergeDefaults); | |
| } | |
| /** | |
| * A specialized version of `_.pick` which picks `object` properties specified | |
| * by `props`. | |
| * | |
| * @private | |
| * @param {Object} object The source object. | |
| * @param {string[]} props The property names to pick. | |
| * @returns {Object} Returns the new object. | |
| */ | |
| function pickByArray(object, props) { | |
| object = toObject(object); | |
| var index = -1, | |
| length = props.length, | |
| result = {}; | |
| while (++index < length) { | |
| var key = props[index]; | |
| if (key in object) { | |
| result[key] = object[key]; | |
| } | |
| } | |
| return result; | |
| } | |
| /** | |
| * A specialized version of `_.pick` which picks `object` properties `predicate` | |
| * returns truthy for. | |
| * | |
| * @private | |
| * @param {Object} object The source object. | |
| * @param {Function} predicate The function invoked per iteration. | |
| * @returns {Object} Returns the new object. | |
| */ | |
| function pickByCallback(object, predicate) { | |
| var result = {}; | |
| baseForIn(object, function(value, key, object) { | |
| if (predicate(value, key, object)) { | |
| result[key] = value; | |
| } | |
| }); | |
| return result; | |
| } | |
| /** | |
| * Reorder `array` according to the specified indexes where the element at | |
| * the first index is assigned as the first element, the element at | |
| * the second index is assigned as the second element, and so on. | |
| * | |
| * @private | |
| * @param {Array} array The array to reorder. | |
| * @param {Array} indexes The arranged array indexes. | |
| * @returns {Array} Returns `array`. | |
| */ | |
| function reorder(array, indexes) { | |
| var arrLength = array.length, | |
| length = nativeMin(indexes.length, arrLength), | |
| oldArray = arrayCopy(array); | |
| while (length--) { | |
| var index = indexes[length]; | |
| array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; | |
| } | |
| return array; | |
| } | |
| /** | |
| * Sets metadata for `func`. | |
| * | |
| * **Note:** If this function becomes hot, i.e. is invoked a lot in a short | |
| * period of time, it will trip its breaker and transition to an identity function | |
| * to avoid garbage collection pauses in V8. See [V8 issue 2070](https://code.google.com/p/v8/issues/detail?id=2070) | |
| * for more details. | |
| * | |
| * @private | |
| * @param {Function} func The function to associate metadata with. | |
| * @param {*} data The metadata. | |
| * @returns {Function} Returns `func`. | |
| */ | |
| var setData = (function() { | |
| var count = 0, | |
| lastCalled = 0; | |
| return function(key, value) { | |
| var stamp = now(), | |
| remaining = HOT_SPAN - (stamp - lastCalled); | |
| lastCalled = stamp; | |
| if (remaining > 0) { | |
| if (++count >= HOT_COUNT) { | |
| return key; | |
| } | |
| } else { | |
| count = 0; | |
| } | |
| return baseSetData(key, value); | |
| }; | |
| }()); | |
| /** | |
| * A fallback implementation of `Object.keys` which creates an array of the | |
| * own enumerable property names of `object`. | |
| * | |
| * @private | |
| * @param {Object} object The object to query. | |
| * @returns {Array} Returns the array of property names. | |
| */ | |
| function shimKeys(object) { | |
| var props = keysIn(object), | |
| propsLength = props.length, | |
| length = propsLength && object.length; | |
| var allowIndexes = !!length && isLength(length) && | |
| (isArray(object) || isArguments(object)); | |
| var index = -1, | |
| result = []; | |
| while (++index < propsLength) { | |
| var key = props[index]; | |
| if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) { | |
| result.push(key); | |
| } | |
| } | |
| return result; | |
| } | |
| /** | |
| * Converts `value` to an array-like object if it's not one. | |
| * | |
| * @private | |
| * @param {*} value The value to process. | |
| * @returns {Array|Object} Returns the array-like object. | |
| */ | |
| function toIterable(value) { | |
| if (value == null) { | |
| return []; | |
| } | |
| if (!isArrayLike(value)) { | |
| return values(value); | |
| } | |
| return isObject(value) ? value : Object(value); | |
| } | |
| /** | |
| * Converts `value` to an object if it's not one. | |
| * | |
| * @private | |
| * @param {*} value The value to process. | |
| * @returns {Object} Returns the object. | |
| */ | |
| function toObject(value) { | |
| return isObject(value) ? value : Object(value); | |
| } | |
| /** | |
| * Converts `value` to property path array if it's not one. | |
| * | |
| * @private | |
| * @param {*} value The value to process. | |
| * @returns {Array} Returns the property path array. | |
| */ | |
| function toPath(value) { | |
| if (isArray(value)) { | |
| return value; | |
| } | |
| var result = []; | |
| baseToString(value).replace(rePropName, function(match, number, quote, string) { | |
| result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match)); | |
| }); | |
| return result; | |
| } | |
| /** | |
| * Creates a clone of `wrapper`. | |
| * | |
| * @private | |
| * @param {Object} wrapper The wrapper to clone. | |
| * @returns {Object} Returns the cloned wrapper. | |
| */ | |
| function wrapperClone(wrapper) { | |
| return wrapper instanceof LazyWrapper | |
| ? wrapper.clone() | |
| : new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__, arrayCopy(wrapper.__actions__)); | |
| } | |
| /*------------------------------------------------------------------------*/ | |
| /** | |
| * Creates an array of elements split into groups the length of `size`. | |
| * If `collection` can't be split evenly, the final chunk will be the remaining | |
| * elements. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to process. | |
| * @param {number} [size=1] The length of each chunk. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {Array} Returns the new array containing chunks. | |
| * @example | |
| * | |
| * _.chunk(['a', 'b', 'c', 'd'], 2); | |
| * // => [['a', 'b'], ['c', 'd']] | |
| * | |
| * _.chunk(['a', 'b', 'c', 'd'], 3); | |
| * // => [['a', 'b', 'c'], ['d']] | |
| */ | |
| function chunk(array, size, guard) { | |
| if (guard ? isIterateeCall(array, size, guard) : size == null) { | |
| size = 1; | |
| } else { | |
| size = nativeMax(nativeFloor(size) || 1, 1); | |
| } | |
| var index = 0, | |
| length = array ? array.length : 0, | |
| resIndex = -1, | |
| result = Array(nativeCeil(length / size)); | |
| while (index < length) { | |
| result[++resIndex] = baseSlice(array, index, (index += size)); | |
| } | |
| return result; | |
| } | |
| /** | |
| * Creates an array with all falsey values removed. The values `false`, `null`, | |
| * `0`, `""`, `undefined`, and `NaN` are falsey. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to compact. | |
| * @returns {Array} Returns the new array of filtered values. | |
| * @example | |
| * | |
| * _.compact([0, 1, false, 2, '', 3]); | |
| * // => [1, 2, 3] | |
| */ | |
| function compact(array) { | |
| var index = -1, | |
| length = array ? array.length : 0, | |
| resIndex = -1, | |
| result = []; | |
| while (++index < length) { | |
| var value = array[index]; | |
| if (value) { | |
| result[++resIndex] = value; | |
| } | |
| } | |
| return result; | |
| } | |
| /** | |
| * Creates an array of unique `array` values not included in the other | |
| * provided arrays using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) | |
| * for equality comparisons. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to inspect. | |
| * @param {...Array} [values] The arrays of values to exclude. | |
| * @returns {Array} Returns the new array of filtered values. | |
| * @example | |
| * | |
| * _.difference([1, 2, 3], [4, 2]); | |
| * // => [1, 3] | |
| */ | |
| var difference = restParam(function(array, values) { | |
| return (isObjectLike(array) && isArrayLike(array)) | |
| ? baseDifference(array, baseFlatten(values, false, true)) | |
| : []; | |
| }); | |
| /** | |
| * Creates a slice of `array` with `n` elements dropped from the beginning. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to query. | |
| * @param {number} [n=1] The number of elements to drop. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {Array} Returns the slice of `array`. | |
| * @example | |
| * | |
| * _.drop([1, 2, 3]); | |
| * // => [2, 3] | |
| * | |
| * _.drop([1, 2, 3], 2); | |
| * // => [3] | |
| * | |
| * _.drop([1, 2, 3], 5); | |
| * // => [] | |
| * | |
| * _.drop([1, 2, 3], 0); | |
| * // => [1, 2, 3] | |
| */ | |
| function drop(array, n, guard) { | |
| var length = array ? array.length : 0; | |
| if (!length) { | |
| return []; | |
| } | |
| if (guard ? isIterateeCall(array, n, guard) : n == null) { | |
| n = 1; | |
| } | |
| return baseSlice(array, n < 0 ? 0 : n); | |
| } | |
| /** | |
| * Creates a slice of `array` with `n` elements dropped from the end. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to query. | |
| * @param {number} [n=1] The number of elements to drop. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {Array} Returns the slice of `array`. | |
| * @example | |
| * | |
| * _.dropRight([1, 2, 3]); | |
| * // => [1, 2] | |
| * | |
| * _.dropRight([1, 2, 3], 2); | |
| * // => [1] | |
| * | |
| * _.dropRight([1, 2, 3], 5); | |
| * // => [] | |
| * | |
| * _.dropRight([1, 2, 3], 0); | |
| * // => [1, 2, 3] | |
| */ | |
| function dropRight(array, n, guard) { | |
| var length = array ? array.length : 0; | |
| if (!length) { | |
| return []; | |
| } | |
| if (guard ? isIterateeCall(array, n, guard) : n == null) { | |
| n = 1; | |
| } | |
| n = length - (+n || 0); | |
| return baseSlice(array, 0, n < 0 ? 0 : n); | |
| } | |
| /** | |
| * Creates a slice of `array` excluding elements dropped from the end. | |
| * Elements are dropped until `predicate` returns falsey. The predicate is | |
| * bound to `thisArg` and invoked with three arguments: (value, index, array). | |
| * | |
| * If a property name is provided for `predicate` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `predicate` the created `_.matches` style | |
| * callback returns `true` for elements that match the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to query. | |
| * @param {Function|Object|string} [predicate=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {Array} Returns the slice of `array`. | |
| * @example | |
| * | |
| * _.dropRightWhile([1, 2, 3], function(n) { | |
| * return n > 1; | |
| * }); | |
| * // => [1] | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'active': true }, | |
| * { 'user': 'fred', 'active': false }, | |
| * { 'user': 'pebbles', 'active': false } | |
| * ]; | |
| * | |
| * // using the `_.matches` callback shorthand | |
| * _.pluck(_.dropRightWhile(users, { 'user': 'pebbles', 'active': false }), 'user'); | |
| * // => ['barney', 'fred'] | |
| * | |
| * // using the `_.matchesProperty` callback shorthand | |
| * _.pluck(_.dropRightWhile(users, 'active', false), 'user'); | |
| * // => ['barney'] | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.pluck(_.dropRightWhile(users, 'active'), 'user'); | |
| * // => ['barney', 'fred', 'pebbles'] | |
| */ | |
| function dropRightWhile(array, predicate, thisArg) { | |
| return (array && array.length) | |
| ? baseWhile(array, getCallback(predicate, thisArg, 3), true, true) | |
| : []; | |
| } | |
| /** | |
| * Creates a slice of `array` excluding elements dropped from the beginning. | |
| * Elements are dropped until `predicate` returns falsey. The predicate is | |
| * bound to `thisArg` and invoked with three arguments: (value, index, array). | |
| * | |
| * If a property name is provided for `predicate` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `predicate` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to query. | |
| * @param {Function|Object|string} [predicate=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {Array} Returns the slice of `array`. | |
| * @example | |
| * | |
| * _.dropWhile([1, 2, 3], function(n) { | |
| * return n < 3; | |
| * }); | |
| * // => [3] | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'active': false }, | |
| * { 'user': 'fred', 'active': false }, | |
| * { 'user': 'pebbles', 'active': true } | |
| * ]; | |
| * | |
| * // using the `_.matches` callback shorthand | |
| * _.pluck(_.dropWhile(users, { 'user': 'barney', 'active': false }), 'user'); | |
| * // => ['fred', 'pebbles'] | |
| * | |
| * // using the `_.matchesProperty` callback shorthand | |
| * _.pluck(_.dropWhile(users, 'active', false), 'user'); | |
| * // => ['pebbles'] | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.pluck(_.dropWhile(users, 'active'), 'user'); | |
| * // => ['barney', 'fred', 'pebbles'] | |
| */ | |
| function dropWhile(array, predicate, thisArg) { | |
| return (array && array.length) | |
| ? baseWhile(array, getCallback(predicate, thisArg, 3), true) | |
| : []; | |
| } | |
| /** | |
| * Fills elements of `array` with `value` from `start` up to, but not | |
| * including, `end`. | |
| * | |
| * **Note:** This method mutates `array`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to fill. | |
| * @param {*} value The value to fill `array` with. | |
| * @param {number} [start=0] The start position. | |
| * @param {number} [end=array.length] The end position. | |
| * @returns {Array} Returns `array`. | |
| * @example | |
| * | |
| * var array = [1, 2, 3]; | |
| * | |
| * _.fill(array, 'a'); | |
| * console.log(array); | |
| * // => ['a', 'a', 'a'] | |
| * | |
| * _.fill(Array(3), 2); | |
| * // => [2, 2, 2] | |
| * | |
| * _.fill([4, 6, 8], '*', 1, 2); | |
| * // => [4, '*', 8] | |
| */ | |
| function fill(array, value, start, end) { | |
| var length = array ? array.length : 0; | |
| if (!length) { | |
| return []; | |
| } | |
| if (start && typeof start != 'number' && isIterateeCall(array, value, start)) { | |
| start = 0; | |
| end = length; | |
| } | |
| return baseFill(array, value, start, end); | |
| } | |
| /** | |
| * This method is like `_.find` except that it returns the index of the first | |
| * element `predicate` returns truthy for instead of the element itself. | |
| * | |
| * If a property name is provided for `predicate` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `predicate` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to search. | |
| * @param {Function|Object|string} [predicate=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {number} Returns the index of the found element, else `-1`. | |
| * @example | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'active': false }, | |
| * { 'user': 'fred', 'active': false }, | |
| * { 'user': 'pebbles', 'active': true } | |
| * ]; | |
| * | |
| * _.findIndex(users, function(chr) { | |
| * return chr.user == 'barney'; | |
| * }); | |
| * // => 0 | |
| * | |
| * // using the `_.matches` callback shorthand | |
| * _.findIndex(users, { 'user': 'fred', 'active': false }); | |
| * // => 1 | |
| * | |
| * // using the `_.matchesProperty` callback shorthand | |
| * _.findIndex(users, 'active', false); | |
| * // => 0 | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.findIndex(users, 'active'); | |
| * // => 2 | |
| */ | |
| var findIndex = createFindIndex(); | |
| /** | |
| * This method is like `_.findIndex` except that it iterates over elements | |
| * of `collection` from right to left. | |
| * | |
| * If a property name is provided for `predicate` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `predicate` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to search. | |
| * @param {Function|Object|string} [predicate=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {number} Returns the index of the found element, else `-1`. | |
| * @example | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'active': true }, | |
| * { 'user': 'fred', 'active': false }, | |
| * { 'user': 'pebbles', 'active': false } | |
| * ]; | |
| * | |
| * _.findLastIndex(users, function(chr) { | |
| * return chr.user == 'pebbles'; | |
| * }); | |
| * // => 2 | |
| * | |
| * // using the `_.matches` callback shorthand | |
| * _.findLastIndex(users, { 'user': 'barney', 'active': true }); | |
| * // => 0 | |
| * | |
| * // using the `_.matchesProperty` callback shorthand | |
| * _.findLastIndex(users, 'active', false); | |
| * // => 2 | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.findLastIndex(users, 'active'); | |
| * // => 0 | |
| */ | |
| var findLastIndex = createFindIndex(true); | |
| /** | |
| * Gets the first element of `array`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias head | |
| * @category Array | |
| * @param {Array} array The array to query. | |
| * @returns {*} Returns the first element of `array`. | |
| * @example | |
| * | |
| * _.first([1, 2, 3]); | |
| * // => 1 | |
| * | |
| * _.first([]); | |
| * // => undefined | |
| */ | |
| function first(array) { | |
| return array ? array[0] : undefined; | |
| } | |
| /** | |
| * Flattens a nested array. If `isDeep` is `true` the array is recursively | |
| * flattened, otherwise it's only flattened a single level. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to flatten. | |
| * @param {boolean} [isDeep] Specify a deep flatten. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {Array} Returns the new flattened array. | |
| * @example | |
| * | |
| * _.flatten([1, [2, 3, [4]]]); | |
| * // => [1, 2, 3, [4]] | |
| * | |
| * // using `isDeep` | |
| * _.flatten([1, [2, 3, [4]]], true); | |
| * // => [1, 2, 3, 4] | |
| */ | |
| function flatten(array, isDeep, guard) { | |
| var length = array ? array.length : 0; | |
| if (guard && isIterateeCall(array, isDeep, guard)) { | |
| isDeep = false; | |
| } | |
| return length ? baseFlatten(array, isDeep) : []; | |
| } | |
| /** | |
| * Recursively flattens a nested array. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to recursively flatten. | |
| * @returns {Array} Returns the new flattened array. | |
| * @example | |
| * | |
| * _.flattenDeep([1, [2, 3, [4]]]); | |
| * // => [1, 2, 3, 4] | |
| */ | |
| function flattenDeep(array) { | |
| var length = array ? array.length : 0; | |
| return length ? baseFlatten(array, true) : []; | |
| } | |
| /** | |
| * Gets the index at which the first occurrence of `value` is found in `array` | |
| * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) | |
| * for equality comparisons. If `fromIndex` is negative, it's used as the offset | |
| * from the end of `array`. If `array` is sorted providing `true` for `fromIndex` | |
| * performs a faster binary search. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to search. | |
| * @param {*} value The value to search for. | |
| * @param {boolean|number} [fromIndex=0] The index to search from or `true` | |
| * to perform a binary search on a sorted array. | |
| * @returns {number} Returns the index of the matched value, else `-1`. | |
| * @example | |
| * | |
| * _.indexOf([1, 2, 1, 2], 2); | |
| * // => 1 | |
| * | |
| * // using `fromIndex` | |
| * _.indexOf([1, 2, 1, 2], 2, 2); | |
| * // => 3 | |
| * | |
| * // performing a binary search | |
| * _.indexOf([1, 1, 2, 2], 2, true); | |
| * // => 2 | |
| */ | |
| function indexOf(array, value, fromIndex) { | |
| var length = array ? array.length : 0; | |
| if (!length) { | |
| return -1; | |
| } | |
| if (typeof fromIndex == 'number') { | |
| fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : fromIndex; | |
| } else if (fromIndex) { | |
| var index = binaryIndex(array, value); | |
| if (index < length && | |
| (value === value ? (value === array[index]) : (array[index] !== array[index]))) { | |
| return index; | |
| } | |
| return -1; | |
| } | |
| return baseIndexOf(array, value, fromIndex || 0); | |
| } | |
| /** | |
| * Gets all but the last element of `array`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to query. | |
| * @returns {Array} Returns the slice of `array`. | |
| * @example | |
| * | |
| * _.initial([1, 2, 3]); | |
| * // => [1, 2] | |
| */ | |
| function initial(array) { | |
| return dropRight(array, 1); | |
| } | |
| /** | |
| * Creates an array of unique values that are included in all of the provided | |
| * arrays using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) | |
| * for equality comparisons. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {...Array} [arrays] The arrays to inspect. | |
| * @returns {Array} Returns the new array of shared values. | |
| * @example | |
| * _.intersection([1, 2], [4, 2], [2, 1]); | |
| * // => [2] | |
| */ | |
| var intersection = restParam(function(arrays) { | |
| var othLength = arrays.length, | |
| othIndex = othLength, | |
| caches = Array(length), | |
| indexOf = getIndexOf(), | |
| isCommon = indexOf === baseIndexOf, | |
| result = []; | |
| while (othIndex--) { | |
| var value = arrays[othIndex] = isArrayLike(value = arrays[othIndex]) ? value : []; | |
| caches[othIndex] = (isCommon && value.length >= 120) ? createCache(othIndex && value) : null; | |
| } | |
| var array = arrays[0], | |
| index = -1, | |
| length = array ? array.length : 0, | |
| seen = caches[0]; | |
| outer: | |
| while (++index < length) { | |
| value = array[index]; | |
| if ((seen ? cacheIndexOf(seen, value) : indexOf(result, value, 0)) < 0) { | |
| var othIndex = othLength; | |
| while (--othIndex) { | |
| var cache = caches[othIndex]; | |
| if ((cache ? cacheIndexOf(cache, value) : indexOf(arrays[othIndex], value, 0)) < 0) { | |
| continue outer; | |
| } | |
| } | |
| if (seen) { | |
| seen.push(value); | |
| } | |
| result.push(value); | |
| } | |
| } | |
| return result; | |
| }); | |
| /** | |
| * Gets the last element of `array`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to query. | |
| * @returns {*} Returns the last element of `array`. | |
| * @example | |
| * | |
| * _.last([1, 2, 3]); | |
| * // => 3 | |
| */ | |
| function last(array) { | |
| var length = array ? array.length : 0; | |
| return length ? array[length - 1] : undefined; | |
| } | |
| /** | |
| * This method is like `_.indexOf` except that it iterates over elements of | |
| * `array` from right to left. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to search. | |
| * @param {*} value The value to search for. | |
| * @param {boolean|number} [fromIndex=array.length-1] The index to search from | |
| * or `true` to perform a binary search on a sorted array. | |
| * @returns {number} Returns the index of the matched value, else `-1`. | |
| * @example | |
| * | |
| * _.lastIndexOf([1, 2, 1, 2], 2); | |
| * // => 3 | |
| * | |
| * // using `fromIndex` | |
| * _.lastIndexOf([1, 2, 1, 2], 2, 2); | |
| * // => 1 | |
| * | |
| * // performing a binary search | |
| * _.lastIndexOf([1, 1, 2, 2], 2, true); | |
| * // => 3 | |
| */ | |
| function lastIndexOf(array, value, fromIndex) { | |
| var length = array ? array.length : 0; | |
| if (!length) { | |
| return -1; | |
| } | |
| var index = length; | |
| if (typeof fromIndex == 'number') { | |
| index = (fromIndex < 0 ? nativeMax(length + fromIndex, 0) : nativeMin(fromIndex || 0, length - 1)) + 1; | |
| } else if (fromIndex) { | |
| index = binaryIndex(array, value, true) - 1; | |
| var other = array[index]; | |
| if (value === value ? (value === other) : (other !== other)) { | |
| return index; | |
| } | |
| return -1; | |
| } | |
| if (value !== value) { | |
| return indexOfNaN(array, index, true); | |
| } | |
| while (index--) { | |
| if (array[index] === value) { | |
| return index; | |
| } | |
| } | |
| return -1; | |
| } | |
| /** | |
| * Removes all provided values from `array` using | |
| * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) | |
| * for equality comparisons. | |
| * | |
| * **Note:** Unlike `_.without`, this method mutates `array`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to modify. | |
| * @param {...*} [values] The values to remove. | |
| * @returns {Array} Returns `array`. | |
| * @example | |
| * | |
| * var array = [1, 2, 3, 1, 2, 3]; | |
| * | |
| * _.pull(array, 2, 3); | |
| * console.log(array); | |
| * // => [1, 1] | |
| */ | |
| function pull() { | |
| var args = arguments, | |
| array = args[0]; | |
| if (!(array && array.length)) { | |
| return array; | |
| } | |
| var index = 0, | |
| indexOf = getIndexOf(), | |
| length = args.length; | |
| while (++index < length) { | |
| var fromIndex = 0, | |
| value = args[index]; | |
| while ((fromIndex = indexOf(array, value, fromIndex)) > -1) { | |
| splice.call(array, fromIndex, 1); | |
| } | |
| } | |
| return array; | |
| } | |
| /** | |
| * Removes elements from `array` corresponding to the given indexes and returns | |
| * an array of the removed elements. Indexes may be specified as an array of | |
| * indexes or as individual arguments. | |
| * | |
| * **Note:** Unlike `_.at`, this method mutates `array`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to modify. | |
| * @param {...(number|number[])} [indexes] The indexes of elements to remove, | |
| * specified as individual indexes or arrays of indexes. | |
| * @returns {Array} Returns the new array of removed elements. | |
| * @example | |
| * | |
| * var array = [5, 10, 15, 20]; | |
| * var evens = _.pullAt(array, 1, 3); | |
| * | |
| * console.log(array); | |
| * // => [5, 15] | |
| * | |
| * console.log(evens); | |
| * // => [10, 20] | |
| */ | |
| var pullAt = restParam(function(array, indexes) { | |
| indexes = baseFlatten(indexes); | |
| var result = baseAt(array, indexes); | |
| basePullAt(array, indexes.sort(baseCompareAscending)); | |
| return result; | |
| }); | |
| /** | |
| * Removes all elements from `array` that `predicate` returns truthy for | |
| * and returns an array of the removed elements. The predicate is bound to | |
| * `thisArg` and invoked with three arguments: (value, index, array). | |
| * | |
| * If a property name is provided for `predicate` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `predicate` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * **Note:** Unlike `_.filter`, this method mutates `array`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to modify. | |
| * @param {Function|Object|string} [predicate=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {Array} Returns the new array of removed elements. | |
| * @example | |
| * | |
| * var array = [1, 2, 3, 4]; | |
| * var evens = _.remove(array, function(n) { | |
| * return n % 2 == 0; | |
| * }); | |
| * | |
| * console.log(array); | |
| * // => [1, 3] | |
| * | |
| * console.log(evens); | |
| * // => [2, 4] | |
| */ | |
| function remove(array, predicate, thisArg) { | |
| var result = []; | |
| if (!(array && array.length)) { | |
| return result; | |
| } | |
| var index = -1, | |
| indexes = [], | |
| length = array.length; | |
| predicate = getCallback(predicate, thisArg, 3); | |
| while (++index < length) { | |
| var value = array[index]; | |
| if (predicate(value, index, array)) { | |
| result.push(value); | |
| indexes.push(index); | |
| } | |
| } | |
| basePullAt(array, indexes); | |
| return result; | |
| } | |
| /** | |
| * Gets all but the first element of `array`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias tail | |
| * @category Array | |
| * @param {Array} array The array to query. | |
| * @returns {Array} Returns the slice of `array`. | |
| * @example | |
| * | |
| * _.rest([1, 2, 3]); | |
| * // => [2, 3] | |
| */ | |
| function rest(array) { | |
| return drop(array, 1); | |
| } | |
| /** | |
| * Creates a slice of `array` from `start` up to, but not including, `end`. | |
| * | |
| * **Note:** This method is used instead of `Array#slice` to support node | |
| * lists in IE < 9 and to ensure dense arrays are returned. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to slice. | |
| * @param {number} [start=0] The start position. | |
| * @param {number} [end=array.length] The end position. | |
| * @returns {Array} Returns the slice of `array`. | |
| */ | |
| function slice(array, start, end) { | |
| var length = array ? array.length : 0; | |
| if (!length) { | |
| return []; | |
| } | |
| if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { | |
| start = 0; | |
| end = length; | |
| } | |
| return baseSlice(array, start, end); | |
| } | |
| /** | |
| * Uses a binary search to determine the lowest index at which `value` should | |
| * be inserted into `array` in order to maintain its sort order. If an iteratee | |
| * function is provided it's invoked for `value` and each element of `array` | |
| * to compute their sort ranking. The iteratee is bound to `thisArg` and | |
| * invoked with one argument; (value). | |
| * | |
| * If a property name is provided for `iteratee` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `iteratee` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The sorted array to inspect. | |
| * @param {*} value The value to evaluate. | |
| * @param {Function|Object|string} [iteratee=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {number} Returns the index at which `value` should be inserted | |
| * into `array`. | |
| * @example | |
| * | |
| * _.sortedIndex([30, 50], 40); | |
| * // => 1 | |
| * | |
| * _.sortedIndex([4, 4, 5, 5], 5); | |
| * // => 2 | |
| * | |
| * var dict = { 'data': { 'thirty': 30, 'forty': 40, 'fifty': 50 } }; | |
| * | |
| * // using an iteratee function | |
| * _.sortedIndex(['thirty', 'fifty'], 'forty', function(word) { | |
| * return this.data[word]; | |
| * }, dict); | |
| * // => 1 | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.sortedIndex([{ 'x': 30 }, { 'x': 50 }], { 'x': 40 }, 'x'); | |
| * // => 1 | |
| */ | |
| var sortedIndex = createSortedIndex(); | |
| /** | |
| * This method is like `_.sortedIndex` except that it returns the highest | |
| * index at which `value` should be inserted into `array` in order to | |
| * maintain its sort order. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The sorted array to inspect. | |
| * @param {*} value The value to evaluate. | |
| * @param {Function|Object|string} [iteratee=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {number} Returns the index at which `value` should be inserted | |
| * into `array`. | |
| * @example | |
| * | |
| * _.sortedLastIndex([4, 4, 5, 5], 5); | |
| * // => 4 | |
| */ | |
| var sortedLastIndex = createSortedIndex(true); | |
| /** | |
| * Creates a slice of `array` with `n` elements taken from the beginning. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to query. | |
| * @param {number} [n=1] The number of elements to take. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {Array} Returns the slice of `array`. | |
| * @example | |
| * | |
| * _.take([1, 2, 3]); | |
| * // => [1] | |
| * | |
| * _.take([1, 2, 3], 2); | |
| * // => [1, 2] | |
| * | |
| * _.take([1, 2, 3], 5); | |
| * // => [1, 2, 3] | |
| * | |
| * _.take([1, 2, 3], 0); | |
| * // => [] | |
| */ | |
| function take(array, n, guard) { | |
| var length = array ? array.length : 0; | |
| if (!length) { | |
| return []; | |
| } | |
| if (guard ? isIterateeCall(array, n, guard) : n == null) { | |
| n = 1; | |
| } | |
| return baseSlice(array, 0, n < 0 ? 0 : n); | |
| } | |
| /** | |
| * Creates a slice of `array` with `n` elements taken from the end. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to query. | |
| * @param {number} [n=1] The number of elements to take. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {Array} Returns the slice of `array`. | |
| * @example | |
| * | |
| * _.takeRight([1, 2, 3]); | |
| * // => [3] | |
| * | |
| * _.takeRight([1, 2, 3], 2); | |
| * // => [2, 3] | |
| * | |
| * _.takeRight([1, 2, 3], 5); | |
| * // => [1, 2, 3] | |
| * | |
| * _.takeRight([1, 2, 3], 0); | |
| * // => [] | |
| */ | |
| function takeRight(array, n, guard) { | |
| var length = array ? array.length : 0; | |
| if (!length) { | |
| return []; | |
| } | |
| if (guard ? isIterateeCall(array, n, guard) : n == null) { | |
| n = 1; | |
| } | |
| n = length - (+n || 0); | |
| return baseSlice(array, n < 0 ? 0 : n); | |
| } | |
| /** | |
| * Creates a slice of `array` with elements taken from the end. Elements are | |
| * taken until `predicate` returns falsey. The predicate is bound to `thisArg` | |
| * and invoked with three arguments: (value, index, array). | |
| * | |
| * If a property name is provided for `predicate` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `predicate` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to query. | |
| * @param {Function|Object|string} [predicate=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {Array} Returns the slice of `array`. | |
| * @example | |
| * | |
| * _.takeRightWhile([1, 2, 3], function(n) { | |
| * return n > 1; | |
| * }); | |
| * // => [2, 3] | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'active': true }, | |
| * { 'user': 'fred', 'active': false }, | |
| * { 'user': 'pebbles', 'active': false } | |
| * ]; | |
| * | |
| * // using the `_.matches` callback shorthand | |
| * _.pluck(_.takeRightWhile(users, { 'user': 'pebbles', 'active': false }), 'user'); | |
| * // => ['pebbles'] | |
| * | |
| * // using the `_.matchesProperty` callback shorthand | |
| * _.pluck(_.takeRightWhile(users, 'active', false), 'user'); | |
| * // => ['fred', 'pebbles'] | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.pluck(_.takeRightWhile(users, 'active'), 'user'); | |
| * // => [] | |
| */ | |
| function takeRightWhile(array, predicate, thisArg) { | |
| return (array && array.length) | |
| ? baseWhile(array, getCallback(predicate, thisArg, 3), false, true) | |
| : []; | |
| } | |
| /** | |
| * Creates a slice of `array` with elements taken from the beginning. Elements | |
| * are taken until `predicate` returns falsey. The predicate is bound to | |
| * `thisArg` and invoked with three arguments: (value, index, array). | |
| * | |
| * If a property name is provided for `predicate` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `predicate` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to query. | |
| * @param {Function|Object|string} [predicate=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {Array} Returns the slice of `array`. | |
| * @example | |
| * | |
| * _.takeWhile([1, 2, 3], function(n) { | |
| * return n < 3; | |
| * }); | |
| * // => [1, 2] | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'active': false }, | |
| * { 'user': 'fred', 'active': false}, | |
| * { 'user': 'pebbles', 'active': true } | |
| * ]; | |
| * | |
| * // using the `_.matches` callback shorthand | |
| * _.pluck(_.takeWhile(users, { 'user': 'barney', 'active': false }), 'user'); | |
| * // => ['barney'] | |
| * | |
| * // using the `_.matchesProperty` callback shorthand | |
| * _.pluck(_.takeWhile(users, 'active', false), 'user'); | |
| * // => ['barney', 'fred'] | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.pluck(_.takeWhile(users, 'active'), 'user'); | |
| * // => [] | |
| */ | |
| function takeWhile(array, predicate, thisArg) { | |
| return (array && array.length) | |
| ? baseWhile(array, getCallback(predicate, thisArg, 3)) | |
| : []; | |
| } | |
| /** | |
| * Creates an array of unique values, in order, from all of the provided arrays | |
| * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) | |
| * for equality comparisons. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {...Array} [arrays] The arrays to inspect. | |
| * @returns {Array} Returns the new array of combined values. | |
| * @example | |
| * | |
| * _.union([1, 2], [4, 2], [2, 1]); | |
| * // => [1, 2, 4] | |
| */ | |
| var union = restParam(function(arrays) { | |
| return baseUniq(baseFlatten(arrays, false, true)); | |
| }); | |
| /** | |
| * Creates a duplicate-free version of an array, using | |
| * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) | |
| * for equality comparisons, in which only the first occurence of each element | |
| * is kept. Providing `true` for `isSorted` performs a faster search algorithm | |
| * for sorted arrays. If an iteratee function is provided it's invoked for | |
| * each element in the array to generate the criterion by which uniqueness | |
| * is computed. The `iteratee` is bound to `thisArg` and invoked with three | |
| * arguments: (value, index, array). | |
| * | |
| * If a property name is provided for `iteratee` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `iteratee` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias unique | |
| * @category Array | |
| * @param {Array} array The array to inspect. | |
| * @param {boolean} [isSorted] Specify the array is sorted. | |
| * @param {Function|Object|string} [iteratee] The function invoked per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {Array} Returns the new duplicate-value-free array. | |
| * @example | |
| * | |
| * _.uniq([2, 1, 2]); | |
| * // => [2, 1] | |
| * | |
| * // using `isSorted` | |
| * _.uniq([1, 1, 2], true); | |
| * // => [1, 2] | |
| * | |
| * // using an iteratee function | |
| * _.uniq([1, 2.5, 1.5, 2], function(n) { | |
| * return this.floor(n); | |
| * }, Math); | |
| * // => [1, 2.5] | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.uniq([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); | |
| * // => [{ 'x': 1 }, { 'x': 2 }] | |
| */ | |
| function uniq(array, isSorted, iteratee, thisArg) { | |
| var length = array ? array.length : 0; | |
| if (!length) { | |
| return []; | |
| } | |
| if (isSorted != null && typeof isSorted != 'boolean') { | |
| thisArg = iteratee; | |
| iteratee = isIterateeCall(array, isSorted, thisArg) ? undefined : isSorted; | |
| isSorted = false; | |
| } | |
| var callback = getCallback(); | |
| if (!(iteratee == null && callback === baseCallback)) { | |
| iteratee = callback(iteratee, thisArg, 3); | |
| } | |
| return (isSorted && getIndexOf() === baseIndexOf) | |
| ? sortedUniq(array, iteratee) | |
| : baseUniq(array, iteratee); | |
| } | |
| /** | |
| * This method is like `_.zip` except that it accepts an array of grouped | |
| * elements and creates an array regrouping the elements to their pre-zip | |
| * configuration. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array of grouped elements to process. | |
| * @returns {Array} Returns the new array of regrouped elements. | |
| * @example | |
| * | |
| * var zipped = _.zip(['fred', 'barney'], [30, 40], [true, false]); | |
| * // => [['fred', 30, true], ['barney', 40, false]] | |
| * | |
| * _.unzip(zipped); | |
| * // => [['fred', 'barney'], [30, 40], [true, false]] | |
| */ | |
| function unzip(array) { | |
| if (!(array && array.length)) { | |
| return []; | |
| } | |
| var index = -1, | |
| length = 0; | |
| array = arrayFilter(array, function(group) { | |
| if (isArrayLike(group)) { | |
| length = nativeMax(group.length, length); | |
| return true; | |
| } | |
| }); | |
| var result = Array(length); | |
| while (++index < length) { | |
| result[index] = arrayMap(array, baseProperty(index)); | |
| } | |
| return result; | |
| } | |
| /** | |
| * This method is like `_.unzip` except that it accepts an iteratee to specify | |
| * how regrouped values should be combined. The `iteratee` is bound to `thisArg` | |
| * and invoked with four arguments: (accumulator, value, index, group). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array of grouped elements to process. | |
| * @param {Function} [iteratee] The function to combine regrouped values. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {Array} Returns the new array of regrouped elements. | |
| * @example | |
| * | |
| * var zipped = _.zip([1, 2], [10, 20], [100, 200]); | |
| * // => [[1, 10, 100], [2, 20, 200]] | |
| * | |
| * _.unzipWith(zipped, _.add); | |
| * // => [3, 30, 300] | |
| */ | |
| function unzipWith(array, iteratee, thisArg) { | |
| var length = array ? array.length : 0; | |
| if (!length) { | |
| return []; | |
| } | |
| var result = unzip(array); | |
| if (iteratee == null) { | |
| return result; | |
| } | |
| iteratee = bindCallback(iteratee, thisArg, 4); | |
| return arrayMap(result, function(group) { | |
| return arrayReduce(group, iteratee, undefined, true); | |
| }); | |
| } | |
| /** | |
| * Creates an array excluding all provided values using | |
| * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) | |
| * for equality comparisons. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {Array} array The array to filter. | |
| * @param {...*} [values] The values to exclude. | |
| * @returns {Array} Returns the new array of filtered values. | |
| * @example | |
| * | |
| * _.without([1, 2, 1, 3], 1, 2); | |
| * // => [3] | |
| */ | |
| var without = restParam(function(array, values) { | |
| return isArrayLike(array) | |
| ? baseDifference(array, values) | |
| : []; | |
| }); | |
| /** | |
| * Creates an array of unique values that is the [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference) | |
| * of the provided arrays. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {...Array} [arrays] The arrays to inspect. | |
| * @returns {Array} Returns the new array of values. | |
| * @example | |
| * | |
| * _.xor([1, 2], [4, 2]); | |
| * // => [1, 4] | |
| */ | |
| function xor() { | |
| var index = -1, | |
| length = arguments.length; | |
| while (++index < length) { | |
| var array = arguments[index]; | |
| if (isArrayLike(array)) { | |
| var result = result | |
| ? arrayPush(baseDifference(result, array), baseDifference(array, result)) | |
| : array; | |
| } | |
| } | |
| return result ? baseUniq(result) : []; | |
| } | |
| /** | |
| * Creates an array of grouped elements, the first of which contains the first | |
| * elements of the given arrays, the second of which contains the second elements | |
| * of the given arrays, and so on. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {...Array} [arrays] The arrays to process. | |
| * @returns {Array} Returns the new array of grouped elements. | |
| * @example | |
| * | |
| * _.zip(['fred', 'barney'], [30, 40], [true, false]); | |
| * // => [['fred', 30, true], ['barney', 40, false]] | |
| */ | |
| var zip = restParam(unzip); | |
| /** | |
| * The inverse of `_.pairs`; this method returns an object composed from arrays | |
| * of property names and values. Provide either a single two dimensional array, | |
| * e.g. `[[key1, value1], [key2, value2]]` or two arrays, one of property names | |
| * and one of corresponding values. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias object | |
| * @category Array | |
| * @param {Array} props The property names. | |
| * @param {Array} [values=[]] The property values. | |
| * @returns {Object} Returns the new object. | |
| * @example | |
| * | |
| * _.zipObject([['fred', 30], ['barney', 40]]); | |
| * // => { 'fred': 30, 'barney': 40 } | |
| * | |
| * _.zipObject(['fred', 'barney'], [30, 40]); | |
| * // => { 'fred': 30, 'barney': 40 } | |
| */ | |
| function zipObject(props, values) { | |
| var index = -1, | |
| length = props ? props.length : 0, | |
| result = {}; | |
| if (length && !values && !isArray(props[0])) { | |
| values = []; | |
| } | |
| while (++index < length) { | |
| var key = props[index]; | |
| if (values) { | |
| result[key] = values[index]; | |
| } else if (key) { | |
| result[key[0]] = key[1]; | |
| } | |
| } | |
| return result; | |
| } | |
| /** | |
| * This method is like `_.zip` except that it accepts an iteratee to specify | |
| * how grouped values should be combined. The `iteratee` is bound to `thisArg` | |
| * and invoked with four arguments: (accumulator, value, index, group). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Array | |
| * @param {...Array} [arrays] The arrays to process. | |
| * @param {Function} [iteratee] The function to combine grouped values. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {Array} Returns the new array of grouped elements. | |
| * @example | |
| * | |
| * _.zipWith([1, 2], [10, 20], [100, 200], _.add); | |
| * // => [111, 222] | |
| */ | |
| var zipWith = restParam(function(arrays) { | |
| var length = arrays.length, | |
| iteratee = length > 2 ? arrays[length - 2] : undefined, | |
| thisArg = length > 1 ? arrays[length - 1] : undefined; | |
| if (length > 2 && typeof iteratee == 'function') { | |
| length -= 2; | |
| } else { | |
| iteratee = (length > 1 && typeof thisArg == 'function') ? (--length, thisArg) : undefined; | |
| thisArg = undefined; | |
| } | |
| arrays.length = length; | |
| return unzipWith(arrays, iteratee, thisArg); | |
| }); | |
| /*------------------------------------------------------------------------*/ | |
| /** | |
| * Creates a `lodash` object that wraps `value` with explicit method | |
| * chaining enabled. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Chain | |
| * @param {*} value The value to wrap. | |
| * @returns {Object} Returns the new `lodash` wrapper instance. | |
| * @example | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'age': 36 }, | |
| * { 'user': 'fred', 'age': 40 }, | |
| * { 'user': 'pebbles', 'age': 1 } | |
| * ]; | |
| * | |
| * var youngest = _.chain(users) | |
| * .sortBy('age') | |
| * .map(function(chr) { | |
| * return chr.user + ' is ' + chr.age; | |
| * }) | |
| * .first() | |
| * .value(); | |
| * // => 'pebbles is 1' | |
| */ | |
| function chain(value) { | |
| var result = lodash(value); | |
| result.__chain__ = true; | |
| return result; | |
| } | |
| /** | |
| * This method invokes `interceptor` and returns `value`. The interceptor is | |
| * bound to `thisArg` and invoked with one argument; (value). The purpose of | |
| * this method is to "tap into" a method chain in order to perform operations | |
| * on intermediate results within the chain. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Chain | |
| * @param {*} value The value to provide to `interceptor`. | |
| * @param {Function} interceptor The function to invoke. | |
| * @param {*} [thisArg] The `this` binding of `interceptor`. | |
| * @returns {*} Returns `value`. | |
| * @example | |
| * | |
| * _([1, 2, 3]) | |
| * .tap(function(array) { | |
| * array.pop(); | |
| * }) | |
| * .reverse() | |
| * .value(); | |
| * // => [2, 1] | |
| */ | |
| function tap(value, interceptor, thisArg) { | |
| interceptor.call(thisArg, value); | |
| return value; | |
| } | |
| /** | |
| * This method is like `_.tap` except that it returns the result of `interceptor`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Chain | |
| * @param {*} value The value to provide to `interceptor`. | |
| * @param {Function} interceptor The function to invoke. | |
| * @param {*} [thisArg] The `this` binding of `interceptor`. | |
| * @returns {*} Returns the result of `interceptor`. | |
| * @example | |
| * | |
| * _(' abc ') | |
| * .chain() | |
| * .trim() | |
| * .thru(function(value) { | |
| * return [value]; | |
| * }) | |
| * .value(); | |
| * // => ['abc'] | |
| */ | |
| function thru(value, interceptor, thisArg) { | |
| return interceptor.call(thisArg, value); | |
| } | |
| /** | |
| * Enables explicit method chaining on the wrapper object. | |
| * | |
| * @name chain | |
| * @memberOf _ | |
| * @category Chain | |
| * @returns {Object} Returns the new `lodash` wrapper instance. | |
| * @example | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'age': 36 }, | |
| * { 'user': 'fred', 'age': 40 } | |
| * ]; | |
| * | |
| * // without explicit chaining | |
| * _(users).first(); | |
| * // => { 'user': 'barney', 'age': 36 } | |
| * | |
| * // with explicit chaining | |
| * _(users).chain() | |
| * .first() | |
| * .pick('user') | |
| * .value(); | |
| * // => { 'user': 'barney' } | |
| */ | |
| function wrapperChain() { | |
| return chain(this); | |
| } | |
| /** | |
| * Executes the chained sequence and returns the wrapped result. | |
| * | |
| * @name commit | |
| * @memberOf _ | |
| * @category Chain | |
| * @returns {Object} Returns the new `lodash` wrapper instance. | |
| * @example | |
| * | |
| * var array = [1, 2]; | |
| * var wrapped = _(array).push(3); | |
| * | |
| * console.log(array); | |
| * // => [1, 2] | |
| * | |
| * wrapped = wrapped.commit(); | |
| * console.log(array); | |
| * // => [1, 2, 3] | |
| * | |
| * wrapped.last(); | |
| * // => 3 | |
| * | |
| * console.log(array); | |
| * // => [1, 2, 3] | |
| */ | |
| function wrapperCommit() { | |
| return new LodashWrapper(this.value(), this.__chain__); | |
| } | |
| /** | |
| * Creates a new array joining a wrapped array with any additional arrays | |
| * and/or values. | |
| * | |
| * @name concat | |
| * @memberOf _ | |
| * @category Chain | |
| * @param {...*} [values] The values to concatenate. | |
| * @returns {Array} Returns the new concatenated array. | |
| * @example | |
| * | |
| * var array = [1]; | |
| * var wrapped = _(array).concat(2, [3], [[4]]); | |
| * | |
| * console.log(wrapped.value()); | |
| * // => [1, 2, 3, [4]] | |
| * | |
| * console.log(array); | |
| * // => [1] | |
| */ | |
| var wrapperConcat = restParam(function(values) { | |
| values = baseFlatten(values); | |
| return this.thru(function(array) { | |
| return arrayConcat(isArray(array) ? array : [toObject(array)], values); | |
| }); | |
| }); | |
| /** | |
| * Creates a clone of the chained sequence planting `value` as the wrapped value. | |
| * | |
| * @name plant | |
| * @memberOf _ | |
| * @category Chain | |
| * @returns {Object} Returns the new `lodash` wrapper instance. | |
| * @example | |
| * | |
| * var array = [1, 2]; | |
| * var wrapped = _(array).map(function(value) { | |
| * return Math.pow(value, 2); | |
| * }); | |
| * | |
| * var other = [3, 4]; | |
| * var otherWrapped = wrapped.plant(other); | |
| * | |
| * otherWrapped.value(); | |
| * // => [9, 16] | |
| * | |
| * wrapped.value(); | |
| * // => [1, 4] | |
| */ | |
| function wrapperPlant(value) { | |
| var result, | |
| parent = this; | |
| while (parent instanceof baseLodash) { | |
| var clone = wrapperClone(parent); | |
| if (result) { | |
| previous.__wrapped__ = clone; | |
| } else { | |
| result = clone; | |
| } | |
| var previous = clone; | |
| parent = parent.__wrapped__; | |
| } | |
| previous.__wrapped__ = value; | |
| return result; | |
| } | |
| /** | |
| * Reverses the wrapped array so the first element becomes the last, the | |
| * second element becomes the second to last, and so on. | |
| * | |
| * **Note:** This method mutates the wrapped array. | |
| * | |
| * @name reverse | |
| * @memberOf _ | |
| * @category Chain | |
| * @returns {Object} Returns the new reversed `lodash` wrapper instance. | |
| * @example | |
| * | |
| * var array = [1, 2, 3]; | |
| * | |
| * _(array).reverse().value() | |
| * // => [3, 2, 1] | |
| * | |
| * console.log(array); | |
| * // => [3, 2, 1] | |
| */ | |
| function wrapperReverse() { | |
| var value = this.__wrapped__; | |
| var interceptor = function(value) { | |
| return value.reverse(); | |
| }; | |
| if (value instanceof LazyWrapper) { | |
| var wrapped = value; | |
| if (this.__actions__.length) { | |
| wrapped = new LazyWrapper(this); | |
| } | |
| wrapped = wrapped.reverse(); | |
| wrapped.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); | |
| return new LodashWrapper(wrapped, this.__chain__); | |
| } | |
| return this.thru(interceptor); | |
| } | |
| /** | |
| * Produces the result of coercing the unwrapped value to a string. | |
| * | |
| * @name toString | |
| * @memberOf _ | |
| * @category Chain | |
| * @returns {string} Returns the coerced string value. | |
| * @example | |
| * | |
| * _([1, 2, 3]).toString(); | |
| * // => '1,2,3' | |
| */ | |
| function wrapperToString() { | |
| return (this.value() + ''); | |
| } | |
| /** | |
| * Executes the chained sequence to extract the unwrapped value. | |
| * | |
| * @name value | |
| * @memberOf _ | |
| * @alias run, toJSON, valueOf | |
| * @category Chain | |
| * @returns {*} Returns the resolved unwrapped value. | |
| * @example | |
| * | |
| * _([1, 2, 3]).value(); | |
| * // => [1, 2, 3] | |
| */ | |
| function wrapperValue() { | |
| return baseWrapperValue(this.__wrapped__, this.__actions__); | |
| } | |
| /*------------------------------------------------------------------------*/ | |
| /** | |
| * Creates an array of elements corresponding to the given keys, or indexes, | |
| * of `collection`. Keys may be specified as individual arguments or as arrays | |
| * of keys. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {...(number|number[]|string|string[])} [props] The property names | |
| * or indexes of elements to pick, specified individually or in arrays. | |
| * @returns {Array} Returns the new array of picked elements. | |
| * @example | |
| * | |
| * _.at(['a', 'b', 'c'], [0, 2]); | |
| * // => ['a', 'c'] | |
| * | |
| * _.at(['barney', 'fred', 'pebbles'], 0, 2); | |
| * // => ['barney', 'pebbles'] | |
| */ | |
| var at = restParam(function(collection, props) { | |
| return baseAt(collection, baseFlatten(props)); | |
| }); | |
| /** | |
| * Creates an object composed of keys generated from the results of running | |
| * each element of `collection` through `iteratee`. The corresponding value | |
| * of each key is the number of times the key was returned by `iteratee`. | |
| * The `iteratee` is bound to `thisArg` and invoked with three arguments: | |
| * (value, index|key, collection). | |
| * | |
| * If a property name is provided for `iteratee` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `iteratee` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function|Object|string} [iteratee=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {Object} Returns the composed aggregate object. | |
| * @example | |
| * | |
| * _.countBy([4.3, 6.1, 6.4], function(n) { | |
| * return Math.floor(n); | |
| * }); | |
| * // => { '4': 1, '6': 2 } | |
| * | |
| * _.countBy([4.3, 6.1, 6.4], function(n) { | |
| * return this.floor(n); | |
| * }, Math); | |
| * // => { '4': 1, '6': 2 } | |
| * | |
| * _.countBy(['one', 'two', 'three'], 'length'); | |
| * // => { '3': 2, '5': 1 } | |
| */ | |
| var countBy = createAggregator(function(result, value, key) { | |
| hasOwnProperty.call(result, key) ? ++result[key] : (result[key] = 1); | |
| }); | |
| /** | |
| * Checks if `predicate` returns truthy for **all** elements of `collection`. | |
| * The predicate is bound to `thisArg` and invoked with three arguments: | |
| * (value, index|key, collection). | |
| * | |
| * If a property name is provided for `predicate` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `predicate` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias all | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function|Object|string} [predicate=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {boolean} Returns `true` if all elements pass the predicate check, | |
| * else `false`. | |
| * @example | |
| * | |
| * _.every([true, 1, null, 'yes'], Boolean); | |
| * // => false | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'active': false }, | |
| * { 'user': 'fred', 'active': false } | |
| * ]; | |
| * | |
| * // using the `_.matches` callback shorthand | |
| * _.every(users, { 'user': 'barney', 'active': false }); | |
| * // => false | |
| * | |
| * // using the `_.matchesProperty` callback shorthand | |
| * _.every(users, 'active', false); | |
| * // => true | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.every(users, 'active'); | |
| * // => false | |
| */ | |
| function every(collection, predicate, thisArg) { | |
| var func = isArray(collection) ? arrayEvery : baseEvery; | |
| if (thisArg && isIterateeCall(collection, predicate, thisArg)) { | |
| predicate = undefined; | |
| } | |
| if (typeof predicate != 'function' || thisArg !== undefined) { | |
| predicate = getCallback(predicate, thisArg, 3); | |
| } | |
| return func(collection, predicate); | |
| } | |
| /** | |
| * Iterates over elements of `collection`, returning an array of all elements | |
| * `predicate` returns truthy for. The predicate is bound to `thisArg` and | |
| * invoked with three arguments: (value, index|key, collection). | |
| * | |
| * If a property name is provided for `predicate` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `predicate` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias select | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function|Object|string} [predicate=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {Array} Returns the new filtered array. | |
| * @example | |
| * | |
| * _.filter([4, 5, 6], function(n) { | |
| * return n % 2 == 0; | |
| * }); | |
| * // => [4, 6] | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'age': 36, 'active': true }, | |
| * { 'user': 'fred', 'age': 40, 'active': false } | |
| * ]; | |
| * | |
| * // using the `_.matches` callback shorthand | |
| * _.pluck(_.filter(users, { 'age': 36, 'active': true }), 'user'); | |
| * // => ['barney'] | |
| * | |
| * // using the `_.matchesProperty` callback shorthand | |
| * _.pluck(_.filter(users, 'active', false), 'user'); | |
| * // => ['fred'] | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.pluck(_.filter(users, 'active'), 'user'); | |
| * // => ['barney'] | |
| */ | |
| function filter(collection, predicate, thisArg) { | |
| var func = isArray(collection) ? arrayFilter : baseFilter; | |
| predicate = getCallback(predicate, thisArg, 3); | |
| return func(collection, predicate); | |
| } | |
| /** | |
| * Iterates over elements of `collection`, returning the first element | |
| * `predicate` returns truthy for. The predicate is bound to `thisArg` and | |
| * invoked with three arguments: (value, index|key, collection). | |
| * | |
| * If a property name is provided for `predicate` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `predicate` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias detect | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to search. | |
| * @param {Function|Object|string} [predicate=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {*} Returns the matched element, else `undefined`. | |
| * @example | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'age': 36, 'active': true }, | |
| * { 'user': 'fred', 'age': 40, 'active': false }, | |
| * { 'user': 'pebbles', 'age': 1, 'active': true } | |
| * ]; | |
| * | |
| * _.result(_.find(users, function(chr) { | |
| * return chr.age < 40; | |
| * }), 'user'); | |
| * // => 'barney' | |
| * | |
| * // using the `_.matches` callback shorthand | |
| * _.result(_.find(users, { 'age': 1, 'active': true }), 'user'); | |
| * // => 'pebbles' | |
| * | |
| * // using the `_.matchesProperty` callback shorthand | |
| * _.result(_.find(users, 'active', false), 'user'); | |
| * // => 'fred' | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.result(_.find(users, 'active'), 'user'); | |
| * // => 'barney' | |
| */ | |
| var find = createFind(baseEach); | |
| /** | |
| * This method is like `_.find` except that it iterates over elements of | |
| * `collection` from right to left. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to search. | |
| * @param {Function|Object|string} [predicate=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {*} Returns the matched element, else `undefined`. | |
| * @example | |
| * | |
| * _.findLast([1, 2, 3, 4], function(n) { | |
| * return n % 2 == 1; | |
| * }); | |
| * // => 3 | |
| */ | |
| var findLast = createFind(baseEachRight, true); | |
| /** | |
| * Performs a deep comparison between each element in `collection` and the | |
| * source object, returning the first element that has equivalent property | |
| * values. | |
| * | |
| * **Note:** This method supports comparing arrays, booleans, `Date` objects, | |
| * numbers, `Object` objects, regexes, and strings. Objects are compared by | |
| * their own, not inherited, enumerable properties. For comparing a single | |
| * own or inherited property value see `_.matchesProperty`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to search. | |
| * @param {Object} source The object of property values to match. | |
| * @returns {*} Returns the matched element, else `undefined`. | |
| * @example | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'age': 36, 'active': true }, | |
| * { 'user': 'fred', 'age': 40, 'active': false } | |
| * ]; | |
| * | |
| * _.result(_.findWhere(users, { 'age': 36, 'active': true }), 'user'); | |
| * // => 'barney' | |
| * | |
| * _.result(_.findWhere(users, { 'age': 40, 'active': false }), 'user'); | |
| * // => 'fred' | |
| */ | |
| function findWhere(collection, source) { | |
| return find(collection, baseMatches(source)); | |
| } | |
| /** | |
| * Iterates over elements of `collection` invoking `iteratee` for each element. | |
| * The `iteratee` is bound to `thisArg` and invoked with three arguments: | |
| * (value, index|key, collection). Iteratee functions may exit iteration early | |
| * by explicitly returning `false`. | |
| * | |
| * **Note:** As with other "Collections" methods, objects with a "length" property | |
| * are iterated like arrays. To avoid this behavior `_.forIn` or `_.forOwn` | |
| * may be used for object iteration. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias each | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function} [iteratee=_.identity] The function invoked per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {Array|Object|string} Returns `collection`. | |
| * @example | |
| * | |
| * _([1, 2]).forEach(function(n) { | |
| * console.log(n); | |
| * }).value(); | |
| * // => logs each value from left to right and returns the array | |
| * | |
| * _.forEach({ 'a': 1, 'b': 2 }, function(n, key) { | |
| * console.log(n, key); | |
| * }); | |
| * // => logs each value-key pair and returns the object (iteration order is not guaranteed) | |
| */ | |
| var forEach = createForEach(arrayEach, baseEach); | |
| /** | |
| * This method is like `_.forEach` except that it iterates over elements of | |
| * `collection` from right to left. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias eachRight | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function} [iteratee=_.identity] The function invoked per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {Array|Object|string} Returns `collection`. | |
| * @example | |
| * | |
| * _([1, 2]).forEachRight(function(n) { | |
| * console.log(n); | |
| * }).value(); | |
| * // => logs each value from right to left and returns the array | |
| */ | |
| var forEachRight = createForEach(arrayEachRight, baseEachRight); | |
| /** | |
| * Creates an object composed of keys generated from the results of running | |
| * each element of `collection` through `iteratee`. The corresponding value | |
| * of each key is an array of the elements responsible for generating the key. | |
| * The `iteratee` is bound to `thisArg` and invoked with three arguments: | |
| * (value, index|key, collection). | |
| * | |
| * If a property name is provided for `iteratee` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `iteratee` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function|Object|string} [iteratee=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {Object} Returns the composed aggregate object. | |
| * @example | |
| * | |
| * _.groupBy([4.2, 6.1, 6.4], function(n) { | |
| * return Math.floor(n); | |
| * }); | |
| * // => { '4': [4.2], '6': [6.1, 6.4] } | |
| * | |
| * _.groupBy([4.2, 6.1, 6.4], function(n) { | |
| * return this.floor(n); | |
| * }, Math); | |
| * // => { '4': [4.2], '6': [6.1, 6.4] } | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.groupBy(['one', 'two', 'three'], 'length'); | |
| * // => { '3': ['one', 'two'], '5': ['three'] } | |
| */ | |
| var groupBy = createAggregator(function(result, value, key) { | |
| if (hasOwnProperty.call(result, key)) { | |
| result[key].push(value); | |
| } else { | |
| result[key] = [value]; | |
| } | |
| }); | |
| /** | |
| * Checks if `target` is in `collection` using | |
| * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) | |
| * for equality comparisons. If `fromIndex` is negative, it's used as the offset | |
| * from the end of `collection`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias contains, include | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to search. | |
| * @param {*} target The value to search for. | |
| * @param {number} [fromIndex=0] The index to search from. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.reduce`. | |
| * @returns {boolean} Returns `true` if a matching element is found, else `false`. | |
| * @example | |
| * | |
| * _.includes([1, 2, 3], 1); | |
| * // => true | |
| * | |
| * _.includes([1, 2, 3], 1, 2); | |
| * // => false | |
| * | |
| * _.includes({ 'user': 'fred', 'age': 40 }, 'fred'); | |
| * // => true | |
| * | |
| * _.includes('pebbles', 'eb'); | |
| * // => true | |
| */ | |
| function includes(collection, target, fromIndex, guard) { | |
| var length = collection ? getLength(collection) : 0; | |
| if (!isLength(length)) { | |
| collection = values(collection); | |
| length = collection.length; | |
| } | |
| if (typeof fromIndex != 'number' || (guard && isIterateeCall(target, fromIndex, guard))) { | |
| fromIndex = 0; | |
| } else { | |
| fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : (fromIndex || 0); | |
| } | |
| return (typeof collection == 'string' || !isArray(collection) && isString(collection)) | |
| ? (fromIndex <= length && collection.indexOf(target, fromIndex) > -1) | |
| : (!!length && getIndexOf(collection, target, fromIndex) > -1); | |
| } | |
| /** | |
| * Creates an object composed of keys generated from the results of running | |
| * each element of `collection` through `iteratee`. The corresponding value | |
| * of each key is the last element responsible for generating the key. The | |
| * iteratee function is bound to `thisArg` and invoked with three arguments: | |
| * (value, index|key, collection). | |
| * | |
| * If a property name is provided for `iteratee` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `iteratee` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function|Object|string} [iteratee=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {Object} Returns the composed aggregate object. | |
| * @example | |
| * | |
| * var keyData = [ | |
| * { 'dir': 'left', 'code': 97 }, | |
| * { 'dir': 'right', 'code': 100 } | |
| * ]; | |
| * | |
| * _.indexBy(keyData, 'dir'); | |
| * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } } | |
| * | |
| * _.indexBy(keyData, function(object) { | |
| * return String.fromCharCode(object.code); | |
| * }); | |
| * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } } | |
| * | |
| * _.indexBy(keyData, function(object) { | |
| * return this.fromCharCode(object.code); | |
| * }, String); | |
| * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } } | |
| */ | |
| var indexBy = createAggregator(function(result, value, key) { | |
| result[key] = value; | |
| }); | |
| /** | |
| * Invokes the method at `path` of each element in `collection`, returning | |
| * an array of the results of each invoked method. Any additional arguments | |
| * are provided to each invoked method. If `methodName` is a function it's | |
| * invoked for, and `this` bound to, each element in `collection`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Array|Function|string} path The path of the method to invoke or | |
| * the function invoked per iteration. | |
| * @param {...*} [args] The arguments to invoke the method with. | |
| * @returns {Array} Returns the array of results. | |
| * @example | |
| * | |
| * _.invoke([[5, 1, 7], [3, 2, 1]], 'sort'); | |
| * // => [[1, 5, 7], [1, 2, 3]] | |
| * | |
| * _.invoke([123, 456], String.prototype.split, ''); | |
| * // => [['1', '2', '3'], ['4', '5', '6']] | |
| */ | |
| var invoke = restParam(function(collection, path, args) { | |
| var index = -1, | |
| isFunc = typeof path == 'function', | |
| isProp = isKey(path), | |
| result = isArrayLike(collection) ? Array(collection.length) : []; | |
| baseEach(collection, function(value) { | |
| var func = isFunc ? path : ((isProp && value != null) ? value[path] : undefined); | |
| result[++index] = func ? func.apply(value, args) : invokePath(value, path, args); | |
| }); | |
| return result; | |
| }); | |
| /** | |
| * Creates an array of values by running each element in `collection` through | |
| * `iteratee`. The `iteratee` is bound to `thisArg` and invoked with three | |
| * arguments: (value, index|key, collection). | |
| * | |
| * If a property name is provided for `iteratee` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `iteratee` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * Many lodash methods are guarded to work as iteratees for methods like | |
| * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. | |
| * | |
| * The guarded methods are: | |
| * `ary`, `callback`, `chunk`, `clone`, `create`, `curry`, `curryRight`, | |
| * `drop`, `dropRight`, `every`, `fill`, `flatten`, `invert`, `max`, `min`, | |
| * `parseInt`, `slice`, `sortBy`, `take`, `takeRight`, `template`, `trim`, | |
| * `trimLeft`, `trimRight`, `trunc`, `random`, `range`, `sample`, `some`, | |
| * `sum`, `uniq`, and `words` | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias collect | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function|Object|string} [iteratee=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {Array} Returns the new mapped array. | |
| * @example | |
| * | |
| * function timesThree(n) { | |
| * return n * 3; | |
| * } | |
| * | |
| * _.map([1, 2], timesThree); | |
| * // => [3, 6] | |
| * | |
| * _.map({ 'a': 1, 'b': 2 }, timesThree); | |
| * // => [3, 6] (iteration order is not guaranteed) | |
| * | |
| * var users = [ | |
| * { 'user': 'barney' }, | |
| * { 'user': 'fred' } | |
| * ]; | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.map(users, 'user'); | |
| * // => ['barney', 'fred'] | |
| */ | |
| function map(collection, iteratee, thisArg) { | |
| var func = isArray(collection) ? arrayMap : baseMap; | |
| iteratee = getCallback(iteratee, thisArg, 3); | |
| return func(collection, iteratee); | |
| } | |
| /** | |
| * Creates an array of elements split into two groups, the first of which | |
| * contains elements `predicate` returns truthy for, while the second of which | |
| * contains elements `predicate` returns falsey for. The predicate is bound | |
| * to `thisArg` and invoked with three arguments: (value, index|key, collection). | |
| * | |
| * If a property name is provided for `predicate` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `predicate` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function|Object|string} [predicate=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {Array} Returns the array of grouped elements. | |
| * @example | |
| * | |
| * _.partition([1, 2, 3], function(n) { | |
| * return n % 2; | |
| * }); | |
| * // => [[1, 3], [2]] | |
| * | |
| * _.partition([1.2, 2.3, 3.4], function(n) { | |
| * return this.floor(n) % 2; | |
| * }, Math); | |
| * // => [[1.2, 3.4], [2.3]] | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'age': 36, 'active': false }, | |
| * { 'user': 'fred', 'age': 40, 'active': true }, | |
| * { 'user': 'pebbles', 'age': 1, 'active': false } | |
| * ]; | |
| * | |
| * var mapper = function(array) { | |
| * return _.pluck(array, 'user'); | |
| * }; | |
| * | |
| * // using the `_.matches` callback shorthand | |
| * _.map(_.partition(users, { 'age': 1, 'active': false }), mapper); | |
| * // => [['pebbles'], ['barney', 'fred']] | |
| * | |
| * // using the `_.matchesProperty` callback shorthand | |
| * _.map(_.partition(users, 'active', false), mapper); | |
| * // => [['barney', 'pebbles'], ['fred']] | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.map(_.partition(users, 'active'), mapper); | |
| * // => [['fred'], ['barney', 'pebbles']] | |
| */ | |
| var partition = createAggregator(function(result, value, key) { | |
| result[key ? 0 : 1].push(value); | |
| }, function() { return [[], []]; }); | |
| /** | |
| * Gets the property value of `path` from all elements in `collection`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Array|string} path The path of the property to pluck. | |
| * @returns {Array} Returns the property values. | |
| * @example | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'age': 36 }, | |
| * { 'user': 'fred', 'age': 40 } | |
| * ]; | |
| * | |
| * _.pluck(users, 'user'); | |
| * // => ['barney', 'fred'] | |
| * | |
| * var userIndex = _.indexBy(users, 'user'); | |
| * _.pluck(userIndex, 'age'); | |
| * // => [36, 40] (iteration order is not guaranteed) | |
| */ | |
| function pluck(collection, path) { | |
| return map(collection, property(path)); | |
| } | |
| /** | |
| * Reduces `collection` to a value which is the accumulated result of running | |
| * each element in `collection` through `iteratee`, where each successive | |
| * invocation is supplied the return value of the previous. If `accumulator` | |
| * is not provided the first element of `collection` is used as the initial | |
| * value. The `iteratee` is bound to `thisArg` and invoked with four arguments: | |
| * (accumulator, value, index|key, collection). | |
| * | |
| * Many lodash methods are guarded to work as iteratees for methods like | |
| * `_.reduce`, `_.reduceRight`, and `_.transform`. | |
| * | |
| * The guarded methods are: | |
| * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `sortByAll`, | |
| * and `sortByOrder` | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias foldl, inject | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function} [iteratee=_.identity] The function invoked per iteration. | |
| * @param {*} [accumulator] The initial value. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {*} Returns the accumulated value. | |
| * @example | |
| * | |
| * _.reduce([1, 2], function(total, n) { | |
| * return total + n; | |
| * }); | |
| * // => 3 | |
| * | |
| * _.reduce({ 'a': 1, 'b': 2 }, function(result, n, key) { | |
| * result[key] = n * 3; | |
| * return result; | |
| * }, {}); | |
| * // => { 'a': 3, 'b': 6 } (iteration order is not guaranteed) | |
| */ | |
| var reduce = createReduce(arrayReduce, baseEach); | |
| /** | |
| * This method is like `_.reduce` except that it iterates over elements of | |
| * `collection` from right to left. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias foldr | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function} [iteratee=_.identity] The function invoked per iteration. | |
| * @param {*} [accumulator] The initial value. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {*} Returns the accumulated value. | |
| * @example | |
| * | |
| * var array = [[0, 1], [2, 3], [4, 5]]; | |
| * | |
| * _.reduceRight(array, function(flattened, other) { | |
| * return flattened.concat(other); | |
| * }, []); | |
| * // => [4, 5, 2, 3, 0, 1] | |
| */ | |
| var reduceRight = createReduce(arrayReduceRight, baseEachRight); | |
| /** | |
| * The opposite of `_.filter`; this method returns the elements of `collection` | |
| * that `predicate` does **not** return truthy for. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function|Object|string} [predicate=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {Array} Returns the new filtered array. | |
| * @example | |
| * | |
| * _.reject([1, 2, 3, 4], function(n) { | |
| * return n % 2 == 0; | |
| * }); | |
| * // => [1, 3] | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'age': 36, 'active': false }, | |
| * { 'user': 'fred', 'age': 40, 'active': true } | |
| * ]; | |
| * | |
| * // using the `_.matches` callback shorthand | |
| * _.pluck(_.reject(users, { 'age': 40, 'active': true }), 'user'); | |
| * // => ['barney'] | |
| * | |
| * // using the `_.matchesProperty` callback shorthand | |
| * _.pluck(_.reject(users, 'active', false), 'user'); | |
| * // => ['fred'] | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.pluck(_.reject(users, 'active'), 'user'); | |
| * // => ['barney'] | |
| */ | |
| function reject(collection, predicate, thisArg) { | |
| var func = isArray(collection) ? arrayFilter : baseFilter; | |
| predicate = getCallback(predicate, thisArg, 3); | |
| return func(collection, function(value, index, collection) { | |
| return !predicate(value, index, collection); | |
| }); | |
| } | |
| /** | |
| * Gets a random element or `n` random elements from a collection. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to sample. | |
| * @param {number} [n] The number of elements to sample. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {*} Returns the random sample(s). | |
| * @example | |
| * | |
| * _.sample([1, 2, 3, 4]); | |
| * // => 2 | |
| * | |
| * _.sample([1, 2, 3, 4], 2); | |
| * // => [3, 1] | |
| */ | |
| function sample(collection, n, guard) { | |
| if (guard ? isIterateeCall(collection, n, guard) : n == null) { | |
| collection = toIterable(collection); | |
| var length = collection.length; | |
| return length > 0 ? collection[baseRandom(0, length - 1)] : undefined; | |
| } | |
| var index = -1, | |
| result = toArray(collection), | |
| length = result.length, | |
| lastIndex = length - 1; | |
| n = nativeMin(n < 0 ? 0 : (+n || 0), length); | |
| while (++index < n) { | |
| var rand = baseRandom(index, lastIndex), | |
| value = result[rand]; | |
| result[rand] = result[index]; | |
| result[index] = value; | |
| } | |
| result.length = n; | |
| return result; | |
| } | |
| /** | |
| * Creates an array of shuffled values, using a version of the | |
| * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to shuffle. | |
| * @returns {Array} Returns the new shuffled array. | |
| * @example | |
| * | |
| * _.shuffle([1, 2, 3, 4]); | |
| * // => [4, 1, 3, 2] | |
| */ | |
| function shuffle(collection) { | |
| return sample(collection, POSITIVE_INFINITY); | |
| } | |
| /** | |
| * Gets the size of `collection` by returning its length for array-like | |
| * values or the number of own enumerable properties for objects. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to inspect. | |
| * @returns {number} Returns the size of `collection`. | |
| * @example | |
| * | |
| * _.size([1, 2, 3]); | |
| * // => 3 | |
| * | |
| * _.size({ 'a': 1, 'b': 2 }); | |
| * // => 2 | |
| * | |
| * _.size('pebbles'); | |
| * // => 7 | |
| */ | |
| function size(collection) { | |
| var length = collection ? getLength(collection) : 0; | |
| return isLength(length) ? length : keys(collection).length; | |
| } | |
| /** | |
| * Checks if `predicate` returns truthy for **any** element of `collection`. | |
| * The function returns as soon as it finds a passing value and does not iterate | |
| * over the entire collection. The predicate is bound to `thisArg` and invoked | |
| * with three arguments: (value, index|key, collection). | |
| * | |
| * If a property name is provided for `predicate` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `predicate` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias any | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function|Object|string} [predicate=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {boolean} Returns `true` if any element passes the predicate check, | |
| * else `false`. | |
| * @example | |
| * | |
| * _.some([null, 0, 'yes', false], Boolean); | |
| * // => true | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'active': true }, | |
| * { 'user': 'fred', 'active': false } | |
| * ]; | |
| * | |
| * // using the `_.matches` callback shorthand | |
| * _.some(users, { 'user': 'barney', 'active': false }); | |
| * // => false | |
| * | |
| * // using the `_.matchesProperty` callback shorthand | |
| * _.some(users, 'active', false); | |
| * // => true | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.some(users, 'active'); | |
| * // => true | |
| */ | |
| function some(collection, predicate, thisArg) { | |
| var func = isArray(collection) ? arraySome : baseSome; | |
| if (thisArg && isIterateeCall(collection, predicate, thisArg)) { | |
| predicate = undefined; | |
| } | |
| if (typeof predicate != 'function' || thisArg !== undefined) { | |
| predicate = getCallback(predicate, thisArg, 3); | |
| } | |
| return func(collection, predicate); | |
| } | |
| /** | |
| * Creates an array of elements, sorted in ascending order by the results of | |
| * running each element in a collection through `iteratee`. This method performs | |
| * a stable sort, that is, it preserves the original sort order of equal elements. | |
| * The `iteratee` is bound to `thisArg` and invoked with three arguments: | |
| * (value, index|key, collection). | |
| * | |
| * If a property name is provided for `iteratee` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `iteratee` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function|Object|string} [iteratee=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {Array} Returns the new sorted array. | |
| * @example | |
| * | |
| * _.sortBy([1, 2, 3], function(n) { | |
| * return Math.sin(n); | |
| * }); | |
| * // => [3, 1, 2] | |
| * | |
| * _.sortBy([1, 2, 3], function(n) { | |
| * return this.sin(n); | |
| * }, Math); | |
| * // => [3, 1, 2] | |
| * | |
| * var users = [ | |
| * { 'user': 'fred' }, | |
| * { 'user': 'pebbles' }, | |
| * { 'user': 'barney' } | |
| * ]; | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.pluck(_.sortBy(users, 'user'), 'user'); | |
| * // => ['barney', 'fred', 'pebbles'] | |
| */ | |
| function sortBy(collection, iteratee, thisArg) { | |
| if (collection == null) { | |
| return []; | |
| } | |
| if (thisArg && isIterateeCall(collection, iteratee, thisArg)) { | |
| iteratee = undefined; | |
| } | |
| var index = -1; | |
| iteratee = getCallback(iteratee, thisArg, 3); | |
| var result = baseMap(collection, function(value, key, collection) { | |
| return { 'criteria': iteratee(value, key, collection), 'index': ++index, 'value': value }; | |
| }); | |
| return baseSortBy(result, compareAscending); | |
| } | |
| /** | |
| * This method is like `_.sortBy` except that it can sort by multiple iteratees | |
| * or property names. | |
| * | |
| * If a property name is provided for an iteratee the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If an object is provided for an iteratee the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {...(Function|Function[]|Object|Object[]|string|string[])} iteratees | |
| * The iteratees to sort by, specified as individual values or arrays of values. | |
| * @returns {Array} Returns the new sorted array. | |
| * @example | |
| * | |
| * var users = [ | |
| * { 'user': 'fred', 'age': 48 }, | |
| * { 'user': 'barney', 'age': 36 }, | |
| * { 'user': 'fred', 'age': 42 }, | |
| * { 'user': 'barney', 'age': 34 } | |
| * ]; | |
| * | |
| * _.map(_.sortByAll(users, ['user', 'age']), _.values); | |
| * // => [['barney', 34], ['barney', 36], ['fred', 42], ['fred', 48]] | |
| * | |
| * _.map(_.sortByAll(users, 'user', function(chr) { | |
| * return Math.floor(chr.age / 10); | |
| * }), _.values); | |
| * // => [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 42]] | |
| */ | |
| var sortByAll = restParam(function(collection, iteratees) { | |
| if (collection == null) { | |
| return []; | |
| } | |
| var guard = iteratees[2]; | |
| if (guard && isIterateeCall(iteratees[0], iteratees[1], guard)) { | |
| iteratees.length = 1; | |
| } | |
| return baseSortByOrder(collection, baseFlatten(iteratees), []); | |
| }); | |
| /** | |
| * This method is like `_.sortByAll` except that it allows specifying the | |
| * sort orders of the iteratees to sort by. If `orders` is unspecified, all | |
| * values are sorted in ascending order. Otherwise, a value is sorted in | |
| * ascending order if its corresponding order is "asc", and descending if "desc". | |
| * | |
| * If a property name is provided for an iteratee the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If an object is provided for an iteratee the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. | |
| * @param {boolean[]} [orders] The sort orders of `iteratees`. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.reduce`. | |
| * @returns {Array} Returns the new sorted array. | |
| * @example | |
| * | |
| * var users = [ | |
| * { 'user': 'fred', 'age': 48 }, | |
| * { 'user': 'barney', 'age': 34 }, | |
| * { 'user': 'fred', 'age': 42 }, | |
| * { 'user': 'barney', 'age': 36 } | |
| * ]; | |
| * | |
| * // sort by `user` in ascending order and by `age` in descending order | |
| * _.map(_.sortByOrder(users, ['user', 'age'], ['asc', 'desc']), _.values); | |
| * // => [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 42]] | |
| */ | |
| function sortByOrder(collection, iteratees, orders, guard) { | |
| if (collection == null) { | |
| return []; | |
| } | |
| if (guard && isIterateeCall(iteratees, orders, guard)) { | |
| orders = undefined; | |
| } | |
| if (!isArray(iteratees)) { | |
| iteratees = iteratees == null ? [] : [iteratees]; | |
| } | |
| if (!isArray(orders)) { | |
| orders = orders == null ? [] : [orders]; | |
| } | |
| return baseSortByOrder(collection, iteratees, orders); | |
| } | |
| /** | |
| * Performs a deep comparison between each element in `collection` and the | |
| * source object, returning an array of all elements that have equivalent | |
| * property values. | |
| * | |
| * **Note:** This method supports comparing arrays, booleans, `Date` objects, | |
| * numbers, `Object` objects, regexes, and strings. Objects are compared by | |
| * their own, not inherited, enumerable properties. For comparing a single | |
| * own or inherited property value see `_.matchesProperty`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Collection | |
| * @param {Array|Object|string} collection The collection to search. | |
| * @param {Object} source The object of property values to match. | |
| * @returns {Array} Returns the new filtered array. | |
| * @example | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'age': 36, 'active': false, 'pets': ['hoppy'] }, | |
| * { 'user': 'fred', 'age': 40, 'active': true, 'pets': ['baby puss', 'dino'] } | |
| * ]; | |
| * | |
| * _.pluck(_.where(users, { 'age': 36, 'active': false }), 'user'); | |
| * // => ['barney'] | |
| * | |
| * _.pluck(_.where(users, { 'pets': ['dino'] }), 'user'); | |
| * // => ['fred'] | |
| */ | |
| function where(collection, source) { | |
| return filter(collection, baseMatches(source)); | |
| } | |
| /*------------------------------------------------------------------------*/ | |
| /** | |
| * Gets the number of milliseconds that have elapsed since the Unix epoch | |
| * (1 January 1970 00:00:00 UTC). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Date | |
| * @example | |
| * | |
| * _.defer(function(stamp) { | |
| * console.log(_.now() - stamp); | |
| * }, _.now()); | |
| * // => logs the number of milliseconds it took for the deferred function to be invoked | |
| */ | |
| var now = nativeNow || function() { | |
| return new Date().getTime(); | |
| }; | |
| /*------------------------------------------------------------------------*/ | |
| /** | |
| * The opposite of `_.before`; this method creates a function that invokes | |
| * `func` once it's called `n` or more times. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {number} n The number of calls before `func` is invoked. | |
| * @param {Function} func The function to restrict. | |
| * @returns {Function} Returns the new restricted function. | |
| * @example | |
| * | |
| * var saves = ['profile', 'settings']; | |
| * | |
| * var done = _.after(saves.length, function() { | |
| * console.log('done saving!'); | |
| * }); | |
| * | |
| * _.forEach(saves, function(type) { | |
| * asyncSave({ 'type': type, 'complete': done }); | |
| * }); | |
| * // => logs 'done saving!' after the two async saves have completed | |
| */ | |
| function after(n, func) { | |
| if (typeof func != 'function') { | |
| if (typeof n == 'function') { | |
| var temp = n; | |
| n = func; | |
| func = temp; | |
| } else { | |
| throw new TypeError(FUNC_ERROR_TEXT); | |
| } | |
| } | |
| n = nativeIsFinite(n = +n) ? n : 0; | |
| return function() { | |
| if (--n < 1) { | |
| return func.apply(this, arguments); | |
| } | |
| }; | |
| } | |
| /** | |
| * Creates a function that accepts up to `n` arguments ignoring any | |
| * additional arguments. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Function} func The function to cap arguments for. | |
| * @param {number} [n=func.length] The arity cap. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {Function} Returns the new function. | |
| * @example | |
| * | |
| * _.map(['6', '8', '10'], _.ary(parseInt, 1)); | |
| * // => [6, 8, 10] | |
| */ | |
| function ary(func, n, guard) { | |
| if (guard && isIterateeCall(func, n, guard)) { | |
| n = undefined; | |
| } | |
| n = (func && n == null) ? func.length : nativeMax(+n || 0, 0); | |
| return createWrapper(func, ARY_FLAG, undefined, undefined, undefined, undefined, n); | |
| } | |
| /** | |
| * Creates a function that invokes `func`, with the `this` binding and arguments | |
| * of the created function, while it's called less than `n` times. Subsequent | |
| * calls to the created function return the result of the last `func` invocation. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {number} n The number of calls at which `func` is no longer invoked. | |
| * @param {Function} func The function to restrict. | |
| * @returns {Function} Returns the new restricted function. | |
| * @example | |
| * | |
| * jQuery('#add').on('click', _.before(5, addContactToList)); | |
| * // => allows adding up to 4 contacts to the list | |
| */ | |
| function before(n, func) { | |
| var result; | |
| if (typeof func != 'function') { | |
| if (typeof n == 'function') { | |
| var temp = n; | |
| n = func; | |
| func = temp; | |
| } else { | |
| throw new TypeError(FUNC_ERROR_TEXT); | |
| } | |
| } | |
| return function() { | |
| if (--n > 0) { | |
| result = func.apply(this, arguments); | |
| } | |
| if (n <= 1) { | |
| func = undefined; | |
| } | |
| return result; | |
| }; | |
| } | |
| /** | |
| * Creates a function that invokes `func` with the `this` binding of `thisArg` | |
| * and prepends any additional `_.bind` arguments to those provided to the | |
| * bound function. | |
| * | |
| * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, | |
| * may be used as a placeholder for partially applied arguments. | |
| * | |
| * **Note:** Unlike native `Function#bind` this method does not set the "length" | |
| * property of bound functions. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Function} func The function to bind. | |
| * @param {*} thisArg The `this` binding of `func`. | |
| * @param {...*} [partials] The arguments to be partially applied. | |
| * @returns {Function} Returns the new bound function. | |
| * @example | |
| * | |
| * var greet = function(greeting, punctuation) { | |
| * return greeting + ' ' + this.user + punctuation; | |
| * }; | |
| * | |
| * var object = { 'user': 'fred' }; | |
| * | |
| * var bound = _.bind(greet, object, 'hi'); | |
| * bound('!'); | |
| * // => 'hi fred!' | |
| * | |
| * // using placeholders | |
| * var bound = _.bind(greet, object, _, '!'); | |
| * bound('hi'); | |
| * // => 'hi fred!' | |
| */ | |
| var bind = restParam(function(func, thisArg, partials) { | |
| var bitmask = BIND_FLAG; | |
| if (partials.length) { | |
| var holders = replaceHolders(partials, bind.placeholder); | |
| bitmask |= PARTIAL_FLAG; | |
| } | |
| return createWrapper(func, bitmask, thisArg, partials, holders); | |
| }); | |
| /** | |
| * Binds methods of an object to the object itself, overwriting the existing | |
| * method. Method names may be specified as individual arguments or as arrays | |
| * of method names. If no method names are provided all enumerable function | |
| * properties, own and inherited, of `object` are bound. | |
| * | |
| * **Note:** This method does not set the "length" property of bound functions. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Object} object The object to bind and assign the bound methods to. | |
| * @param {...(string|string[])} [methodNames] The object method names to bind, | |
| * specified as individual method names or arrays of method names. | |
| * @returns {Object} Returns `object`. | |
| * @example | |
| * | |
| * var view = { | |
| * 'label': 'docs', | |
| * 'onClick': function() { | |
| * console.log('clicked ' + this.label); | |
| * } | |
| * }; | |
| * | |
| * _.bindAll(view); | |
| * jQuery('#docs').on('click', view.onClick); | |
| * // => logs 'clicked docs' when the element is clicked | |
| */ | |
| var bindAll = restParam(function(object, methodNames) { | |
| methodNames = methodNames.length ? baseFlatten(methodNames) : functions(object); | |
| var index = -1, | |
| length = methodNames.length; | |
| while (++index < length) { | |
| var key = methodNames[index]; | |
| object[key] = createWrapper(object[key], BIND_FLAG, object); | |
| } | |
| return object; | |
| }); | |
| /** | |
| * Creates a function that invokes the method at `object[key]` and prepends | |
| * any additional `_.bindKey` arguments to those provided to the bound function. | |
| * | |
| * This method differs from `_.bind` by allowing bound functions to reference | |
| * methods that may be redefined or don't yet exist. | |
| * See [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern) | |
| * for more details. | |
| * | |
| * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic | |
| * builds, may be used as a placeholder for partially applied arguments. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Object} object The object the method belongs to. | |
| * @param {string} key The key of the method. | |
| * @param {...*} [partials] The arguments to be partially applied. | |
| * @returns {Function} Returns the new bound function. | |
| * @example | |
| * | |
| * var object = { | |
| * 'user': 'fred', | |
| * 'greet': function(greeting, punctuation) { | |
| * return greeting + ' ' + this.user + punctuation; | |
| * } | |
| * }; | |
| * | |
| * var bound = _.bindKey(object, 'greet', 'hi'); | |
| * bound('!'); | |
| * // => 'hi fred!' | |
| * | |
| * object.greet = function(greeting, punctuation) { | |
| * return greeting + 'ya ' + this.user + punctuation; | |
| * }; | |
| * | |
| * bound('!'); | |
| * // => 'hiya fred!' | |
| * | |
| * // using placeholders | |
| * var bound = _.bindKey(object, 'greet', _, '!'); | |
| * bound('hi'); | |
| * // => 'hiya fred!' | |
| */ | |
| var bindKey = restParam(function(object, key, partials) { | |
| var bitmask = BIND_FLAG | BIND_KEY_FLAG; | |
| if (partials.length) { | |
| var holders = replaceHolders(partials, bindKey.placeholder); | |
| bitmask |= PARTIAL_FLAG; | |
| } | |
| return createWrapper(key, bitmask, object, partials, holders); | |
| }); | |
| /** | |
| * Creates a function that accepts one or more arguments of `func` that when | |
| * called either invokes `func` returning its result, if all `func` arguments | |
| * have been provided, or returns a function that accepts one or more of the | |
| * remaining `func` arguments, and so on. The arity of `func` may be specified | |
| * if `func.length` is not sufficient. | |
| * | |
| * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds, | |
| * may be used as a placeholder for provided arguments. | |
| * | |
| * **Note:** This method does not set the "length" property of curried functions. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Function} func The function to curry. | |
| * @param {number} [arity=func.length] The arity of `func`. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {Function} Returns the new curried function. | |
| * @example | |
| * | |
| * var abc = function(a, b, c) { | |
| * return [a, b, c]; | |
| * }; | |
| * | |
| * var curried = _.curry(abc); | |
| * | |
| * curried(1)(2)(3); | |
| * // => [1, 2, 3] | |
| * | |
| * curried(1, 2)(3); | |
| * // => [1, 2, 3] | |
| * | |
| * curried(1, 2, 3); | |
| * // => [1, 2, 3] | |
| * | |
| * // using placeholders | |
| * curried(1)(_, 3)(2); | |
| * // => [1, 2, 3] | |
| */ | |
| var curry = createCurry(CURRY_FLAG); | |
| /** | |
| * This method is like `_.curry` except that arguments are applied to `func` | |
| * in the manner of `_.partialRight` instead of `_.partial`. | |
| * | |
| * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic | |
| * builds, may be used as a placeholder for provided arguments. | |
| * | |
| * **Note:** This method does not set the "length" property of curried functions. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Function} func The function to curry. | |
| * @param {number} [arity=func.length] The arity of `func`. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {Function} Returns the new curried function. | |
| * @example | |
| * | |
| * var abc = function(a, b, c) { | |
| * return [a, b, c]; | |
| * }; | |
| * | |
| * var curried = _.curryRight(abc); | |
| * | |
| * curried(3)(2)(1); | |
| * // => [1, 2, 3] | |
| * | |
| * curried(2, 3)(1); | |
| * // => [1, 2, 3] | |
| * | |
| * curried(1, 2, 3); | |
| * // => [1, 2, 3] | |
| * | |
| * // using placeholders | |
| * curried(3)(1, _)(2); | |
| * // => [1, 2, 3] | |
| */ | |
| var curryRight = createCurry(CURRY_RIGHT_FLAG); | |
| /** | |
| * Creates a debounced function that delays invoking `func` until after `wait` | |
| * milliseconds have elapsed since the last time the debounced function was | |
| * invoked. The debounced function comes with a `cancel` method to cancel | |
| * delayed invocations. Provide an options object to indicate that `func` | |
| * should be invoked on the leading and/or trailing edge of the `wait` timeout. | |
| * Subsequent calls to the debounced function return the result of the last | |
| * `func` invocation. | |
| * | |
| * **Note:** If `leading` and `trailing` options are `true`, `func` is invoked | |
| * on the trailing edge of the timeout only if the the debounced function is | |
| * invoked more than once during the `wait` timeout. | |
| * | |
| * See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation) | |
| * for details over the differences between `_.debounce` and `_.throttle`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Function} func The function to debounce. | |
| * @param {number} [wait=0] The number of milliseconds to delay. | |
| * @param {Object} [options] The options object. | |
| * @param {boolean} [options.leading=false] Specify invoking on the leading | |
| * edge of the timeout. | |
| * @param {number} [options.maxWait] The maximum time `func` is allowed to be | |
| * delayed before it's invoked. | |
| * @param {boolean} [options.trailing=true] Specify invoking on the trailing | |
| * edge of the timeout. | |
| * @returns {Function} Returns the new debounced function. | |
| * @example | |
| * | |
| * // avoid costly calculations while the window size is in flux | |
| * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); | |
| * | |
| * // invoke `sendMail` when the click event is fired, debouncing subsequent calls | |
| * jQuery('#postbox').on('click', _.debounce(sendMail, 300, { | |
| * 'leading': true, | |
| * 'trailing': false | |
| * })); | |
| * | |
| * // ensure `batchLog` is invoked once after 1 second of debounced calls | |
| * var source = new EventSource('/stream'); | |
| * jQuery(source).on('message', _.debounce(batchLog, 250, { | |
| * 'maxWait': 1000 | |
| * })); | |
| * | |
| * // cancel a debounced call | |
| * var todoChanges = _.debounce(batchLog, 1000); | |
| * Object.observe(models.todo, todoChanges); | |
| * | |
| * Object.observe(models, function(changes) { | |
| * if (_.find(changes, { 'user': 'todo', 'type': 'delete'})) { | |
| * todoChanges.cancel(); | |
| * } | |
| * }, ['delete']); | |
| * | |
| * // ...at some point `models.todo` is changed | |
| * models.todo.completed = true; | |
| * | |
| * // ...before 1 second has passed `models.todo` is deleted | |
| * // which cancels the debounced `todoChanges` call | |
| * delete models.todo; | |
| */ | |
| function debounce(func, wait, options) { | |
| var args, | |
| maxTimeoutId, | |
| result, | |
| stamp, | |
| thisArg, | |
| timeoutId, | |
| trailingCall, | |
| lastCalled = 0, | |
| maxWait = false, | |
| trailing = true; | |
| if (typeof func != 'function') { | |
| throw new TypeError(FUNC_ERROR_TEXT); | |
| } | |
| wait = wait < 0 ? 0 : (+wait || 0); | |
| if (options === true) { | |
| var leading = true; | |
| trailing = false; | |
| } else if (isObject(options)) { | |
| leading = !!options.leading; | |
| maxWait = 'maxWait' in options && nativeMax(+options.maxWait || 0, wait); | |
| trailing = 'trailing' in options ? !!options.trailing : trailing; | |
| } | |
| function cancel() { | |
| if (timeoutId) { | |
| clearTimeout(timeoutId); | |
| } | |
| if (maxTimeoutId) { | |
| clearTimeout(maxTimeoutId); | |
| } | |
| lastCalled = 0; | |
| maxTimeoutId = timeoutId = trailingCall = undefined; | |
| } | |
| function complete(isCalled, id) { | |
| if (id) { | |
| clearTimeout(id); | |
| } | |
| maxTimeoutId = timeoutId = trailingCall = undefined; | |
| if (isCalled) { | |
| lastCalled = now(); | |
| result = func.apply(thisArg, args); | |
| if (!timeoutId && !maxTimeoutId) { | |
| args = thisArg = undefined; | |
| } | |
| } | |
| } | |
| function delayed() { | |
| var remaining = wait - (now() - stamp); | |
| if (remaining <= 0 || remaining > wait) { | |
| complete(trailingCall, maxTimeoutId); | |
| } else { | |
| timeoutId = setTimeout(delayed, remaining); | |
| } | |
| } | |
| function maxDelayed() { | |
| complete(trailing, timeoutId); | |
| } | |
| function debounced() { | |
| args = arguments; | |
| stamp = now(); | |
| thisArg = this; | |
| trailingCall = trailing && (timeoutId || !leading); | |
| if (maxWait === false) { | |
| var leadingCall = leading && !timeoutId; | |
| } else { | |
| if (!maxTimeoutId && !leading) { | |
| lastCalled = stamp; | |
| } | |
| var remaining = maxWait - (stamp - lastCalled), | |
| isCalled = remaining <= 0 || remaining > maxWait; | |
| if (isCalled) { | |
| if (maxTimeoutId) { | |
| maxTimeoutId = clearTimeout(maxTimeoutId); | |
| } | |
| lastCalled = stamp; | |
| result = func.apply(thisArg, args); | |
| } | |
| else if (!maxTimeoutId) { | |
| maxTimeoutId = setTimeout(maxDelayed, remaining); | |
| } | |
| } | |
| if (isCalled && timeoutId) { | |
| timeoutId = clearTimeout(timeoutId); | |
| } | |
| else if (!timeoutId && wait !== maxWait) { | |
| timeoutId = setTimeout(delayed, wait); | |
| } | |
| if (leadingCall) { | |
| isCalled = true; | |
| result = func.apply(thisArg, args); | |
| } | |
| if (isCalled && !timeoutId && !maxTimeoutId) { | |
| args = thisArg = undefined; | |
| } | |
| return result; | |
| } | |
| debounced.cancel = cancel; | |
| return debounced; | |
| } | |
| /** | |
| * Defers invoking the `func` until the current call stack has cleared. Any | |
| * additional arguments are provided to `func` when it's invoked. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Function} func The function to defer. | |
| * @param {...*} [args] The arguments to invoke the function with. | |
| * @returns {number} Returns the timer id. | |
| * @example | |
| * | |
| * _.defer(function(text) { | |
| * console.log(text); | |
| * }, 'deferred'); | |
| * // logs 'deferred' after one or more milliseconds | |
| */ | |
| var defer = restParam(function(func, args) { | |
| return baseDelay(func, 1, args); | |
| }); | |
| /** | |
| * Invokes `func` after `wait` milliseconds. Any additional arguments are | |
| * provided to `func` when it's invoked. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Function} func The function to delay. | |
| * @param {number} wait The number of milliseconds to delay invocation. | |
| * @param {...*} [args] The arguments to invoke the function with. | |
| * @returns {number} Returns the timer id. | |
| * @example | |
| * | |
| * _.delay(function(text) { | |
| * console.log(text); | |
| * }, 1000, 'later'); | |
| * // => logs 'later' after one second | |
| */ | |
| var delay = restParam(function(func, wait, args) { | |
| return baseDelay(func, wait, args); | |
| }); | |
| /** | |
| * Creates a function that returns the result of invoking the provided | |
| * functions with the `this` binding of the created function, where each | |
| * successive invocation is supplied the return value of the previous. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {...Function} [funcs] Functions to invoke. | |
| * @returns {Function} Returns the new function. | |
| * @example | |
| * | |
| * function square(n) { | |
| * return n * n; | |
| * } | |
| * | |
| * var addSquare = _.flow(_.add, square); | |
| * addSquare(1, 2); | |
| * // => 9 | |
| */ | |
| var flow = createFlow(); | |
| /** | |
| * This method is like `_.flow` except that it creates a function that | |
| * invokes the provided functions from right to left. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias backflow, compose | |
| * @category Function | |
| * @param {...Function} [funcs] Functions to invoke. | |
| * @returns {Function} Returns the new function. | |
| * @example | |
| * | |
| * function square(n) { | |
| * return n * n; | |
| * } | |
| * | |
| * var addSquare = _.flowRight(square, _.add); | |
| * addSquare(1, 2); | |
| * // => 9 | |
| */ | |
| var flowRight = createFlow(true); | |
| /** | |
| * Creates a function that memoizes the result of `func`. If `resolver` is | |
| * provided it determines the cache key for storing the result based on the | |
| * arguments provided to the memoized function. By default, the first argument | |
| * provided to the memoized function is coerced to a string and used as the | |
| * cache key. The `func` is invoked with the `this` binding of the memoized | |
| * function. | |
| * | |
| * **Note:** The cache is exposed as the `cache` property on the memoized | |
| * function. Its creation may be customized by replacing the `_.memoize.Cache` | |
| * constructor with one whose instances implement the [`Map`](http://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-map-prototype-object) | |
| * method interface of `get`, `has`, and `set`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Function} func The function to have its output memoized. | |
| * @param {Function} [resolver] The function to resolve the cache key. | |
| * @returns {Function} Returns the new memoizing function. | |
| * @example | |
| * | |
| * var upperCase = _.memoize(function(string) { | |
| * return string.toUpperCase(); | |
| * }); | |
| * | |
| * upperCase('fred'); | |
| * // => 'FRED' | |
| * | |
| * // modifying the result cache | |
| * upperCase.cache.set('fred', 'BARNEY'); | |
| * upperCase('fred'); | |
| * // => 'BARNEY' | |
| * | |
| * // replacing `_.memoize.Cache` | |
| * var object = { 'user': 'fred' }; | |
| * var other = { 'user': 'barney' }; | |
| * var identity = _.memoize(_.identity); | |
| * | |
| * identity(object); | |
| * // => { 'user': 'fred' } | |
| * identity(other); | |
| * // => { 'user': 'fred' } | |
| * | |
| * _.memoize.Cache = WeakMap; | |
| * var identity = _.memoize(_.identity); | |
| * | |
| * identity(object); | |
| * // => { 'user': 'fred' } | |
| * identity(other); | |
| * // => { 'user': 'barney' } | |
| */ | |
| function memoize(func, resolver) { | |
| if (typeof func != 'function' || (resolver && typeof resolver != 'function')) { | |
| throw new TypeError(FUNC_ERROR_TEXT); | |
| } | |
| var memoized = function() { | |
| var args = arguments, | |
| key = resolver ? resolver.apply(this, args) : args[0], | |
| cache = memoized.cache; | |
| if (cache.has(key)) { | |
| return cache.get(key); | |
| } | |
| var result = func.apply(this, args); | |
| memoized.cache = cache.set(key, result); | |
| return result; | |
| }; | |
| memoized.cache = new memoize.Cache; | |
| return memoized; | |
| } | |
| /** | |
| * Creates a function that runs each argument through a corresponding | |
| * transform function. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Function} func The function to wrap. | |
| * @param {...(Function|Function[])} [transforms] The functions to transform | |
| * arguments, specified as individual functions or arrays of functions. | |
| * @returns {Function} Returns the new function. | |
| * @example | |
| * | |
| * function doubled(n) { | |
| * return n * 2; | |
| * } | |
| * | |
| * function square(n) { | |
| * return n * n; | |
| * } | |
| * | |
| * var modded = _.modArgs(function(x, y) { | |
| * return [x, y]; | |
| * }, square, doubled); | |
| * | |
| * modded(1, 2); | |
| * // => [1, 4] | |
| * | |
| * modded(5, 10); | |
| * // => [25, 20] | |
| */ | |
| var modArgs = restParam(function(func, transforms) { | |
| transforms = baseFlatten(transforms); | |
| if (typeof func != 'function' || !arrayEvery(transforms, baseIsFunction)) { | |
| throw new TypeError(FUNC_ERROR_TEXT); | |
| } | |
| var length = transforms.length; | |
| return restParam(function(args) { | |
| var index = nativeMin(args.length, length); | |
| while (index--) { | |
| args[index] = transforms[index](args[index]); | |
| } | |
| return func.apply(this, args); | |
| }); | |
| }); | |
| /** | |
| * Creates a function that negates the result of the predicate `func`. The | |
| * `func` predicate is invoked with the `this` binding and arguments of the | |
| * created function. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Function} predicate The predicate to negate. | |
| * @returns {Function} Returns the new function. | |
| * @example | |
| * | |
| * function isEven(n) { | |
| * return n % 2 == 0; | |
| * } | |
| * | |
| * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); | |
| * // => [1, 3, 5] | |
| */ | |
| function negate(predicate) { | |
| if (typeof predicate != 'function') { | |
| throw new TypeError(FUNC_ERROR_TEXT); | |
| } | |
| return function() { | |
| return !predicate.apply(this, arguments); | |
| }; | |
| } | |
| /** | |
| * Creates a function that is restricted to invoking `func` once. Repeat calls | |
| * to the function return the value of the first call. The `func` is invoked | |
| * with the `this` binding and arguments of the created function. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Function} func The function to restrict. | |
| * @returns {Function} Returns the new restricted function. | |
| * @example | |
| * | |
| * var initialize = _.once(createApplication); | |
| * initialize(); | |
| * initialize(); | |
| * // `initialize` invokes `createApplication` once | |
| */ | |
| function once(func) { | |
| return before(2, func); | |
| } | |
| /** | |
| * Creates a function that invokes `func` with `partial` arguments prepended | |
| * to those provided to the new function. This method is like `_.bind` except | |
| * it does **not** alter the `this` binding. | |
| * | |
| * The `_.partial.placeholder` value, which defaults to `_` in monolithic | |
| * builds, may be used as a placeholder for partially applied arguments. | |
| * | |
| * **Note:** This method does not set the "length" property of partially | |
| * applied functions. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Function} func The function to partially apply arguments to. | |
| * @param {...*} [partials] The arguments to be partially applied. | |
| * @returns {Function} Returns the new partially applied function. | |
| * @example | |
| * | |
| * var greet = function(greeting, name) { | |
| * return greeting + ' ' + name; | |
| * }; | |
| * | |
| * var sayHelloTo = _.partial(greet, 'hello'); | |
| * sayHelloTo('fred'); | |
| * // => 'hello fred' | |
| * | |
| * // using placeholders | |
| * var greetFred = _.partial(greet, _, 'fred'); | |
| * greetFred('hi'); | |
| * // => 'hi fred' | |
| */ | |
| var partial = createPartial(PARTIAL_FLAG); | |
| /** | |
| * This method is like `_.partial` except that partially applied arguments | |
| * are appended to those provided to the new function. | |
| * | |
| * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic | |
| * builds, may be used as a placeholder for partially applied arguments. | |
| * | |
| * **Note:** This method does not set the "length" property of partially | |
| * applied functions. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Function} func The function to partially apply arguments to. | |
| * @param {...*} [partials] The arguments to be partially applied. | |
| * @returns {Function} Returns the new partially applied function. | |
| * @example | |
| * | |
| * var greet = function(greeting, name) { | |
| * return greeting + ' ' + name; | |
| * }; | |
| * | |
| * var greetFred = _.partialRight(greet, 'fred'); | |
| * greetFred('hi'); | |
| * // => 'hi fred' | |
| * | |
| * // using placeholders | |
| * var sayHelloTo = _.partialRight(greet, 'hello', _); | |
| * sayHelloTo('fred'); | |
| * // => 'hello fred' | |
| */ | |
| var partialRight = createPartial(PARTIAL_RIGHT_FLAG); | |
| /** | |
| * Creates a function that invokes `func` with arguments arranged according | |
| * to the specified indexes where the argument value at the first index is | |
| * provided as the first argument, the argument value at the second index is | |
| * provided as the second argument, and so on. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Function} func The function to rearrange arguments for. | |
| * @param {...(number|number[])} indexes The arranged argument indexes, | |
| * specified as individual indexes or arrays of indexes. | |
| * @returns {Function} Returns the new function. | |
| * @example | |
| * | |
| * var rearged = _.rearg(function(a, b, c) { | |
| * return [a, b, c]; | |
| * }, 2, 0, 1); | |
| * | |
| * rearged('b', 'c', 'a') | |
| * // => ['a', 'b', 'c'] | |
| * | |
| * var map = _.rearg(_.map, [1, 0]); | |
| * map(function(n) { | |
| * return n * 3; | |
| * }, [1, 2, 3]); | |
| * // => [3, 6, 9] | |
| */ | |
| var rearg = restParam(function(func, indexes) { | |
| return createWrapper(func, REARG_FLAG, undefined, undefined, undefined, baseFlatten(indexes)); | |
| }); | |
| /** | |
| * Creates a function that invokes `func` with the `this` binding of the | |
| * created function and arguments from `start` and beyond provided as an array. | |
| * | |
| * **Note:** This method is based on the [rest parameter](https://developer.mozilla.org/Web/JavaScript/Reference/Functions/rest_parameters). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Function} func The function to apply a rest parameter to. | |
| * @param {number} [start=func.length-1] The start position of the rest parameter. | |
| * @returns {Function} Returns the new function. | |
| * @example | |
| * | |
| * var say = _.restParam(function(what, names) { | |
| * return what + ' ' + _.initial(names).join(', ') + | |
| * (_.size(names) > 1 ? ', & ' : '') + _.last(names); | |
| * }); | |
| * | |
| * say('hello', 'fred', 'barney', 'pebbles'); | |
| * // => 'hello fred, barney, & pebbles' | |
| */ | |
| function restParam(func, start) { | |
| if (typeof func != 'function') { | |
| throw new TypeError(FUNC_ERROR_TEXT); | |
| } | |
| start = nativeMax(start === undefined ? (func.length - 1) : (+start || 0), 0); | |
| return function() { | |
| var args = arguments, | |
| index = -1, | |
| length = nativeMax(args.length - start, 0), | |
| rest = Array(length); | |
| while (++index < length) { | |
| rest[index] = args[start + index]; | |
| } | |
| switch (start) { | |
| case 0: return func.call(this, rest); | |
| case 1: return func.call(this, args[0], rest); | |
| case 2: return func.call(this, args[0], args[1], rest); | |
| } | |
| var otherArgs = Array(start + 1); | |
| index = -1; | |
| while (++index < start) { | |
| otherArgs[index] = args[index]; | |
| } | |
| otherArgs[start] = rest; | |
| return func.apply(this, otherArgs); | |
| }; | |
| } | |
| /** | |
| * Creates a function that invokes `func` with the `this` binding of the created | |
| * function and an array of arguments much like [`Function#apply`](https://es5.github.io/#x15.3.4.3). | |
| * | |
| * **Note:** This method is based on the [spread operator](https://developer.mozilla.org/Web/JavaScript/Reference/Operators/Spread_operator). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Function} func The function to spread arguments over. | |
| * @returns {Function} Returns the new function. | |
| * @example | |
| * | |
| * var say = _.spread(function(who, what) { | |
| * return who + ' says ' + what; | |
| * }); | |
| * | |
| * say(['fred', 'hello']); | |
| * // => 'fred says hello' | |
| * | |
| * // with a Promise | |
| * var numbers = Promise.all([ | |
| * Promise.resolve(40), | |
| * Promise.resolve(36) | |
| * ]); | |
| * | |
| * numbers.then(_.spread(function(x, y) { | |
| * return x + y; | |
| * })); | |
| * // => a Promise of 76 | |
| */ | |
| function spread(func) { | |
| if (typeof func != 'function') { | |
| throw new TypeError(FUNC_ERROR_TEXT); | |
| } | |
| return function(array) { | |
| return func.apply(this, array); | |
| }; | |
| } | |
| /** | |
| * Creates a throttled function that only invokes `func` at most once per | |
| * every `wait` milliseconds. The throttled function comes with a `cancel` | |
| * method to cancel delayed invocations. Provide an options object to indicate | |
| * that `func` should be invoked on the leading and/or trailing edge of the | |
| * `wait` timeout. Subsequent calls to the throttled function return the | |
| * result of the last `func` call. | |
| * | |
| * **Note:** If `leading` and `trailing` options are `true`, `func` is invoked | |
| * on the trailing edge of the timeout only if the the throttled function is | |
| * invoked more than once during the `wait` timeout. | |
| * | |
| * See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation) | |
| * for details over the differences between `_.throttle` and `_.debounce`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {Function} func The function to throttle. | |
| * @param {number} [wait=0] The number of milliseconds to throttle invocations to. | |
| * @param {Object} [options] The options object. | |
| * @param {boolean} [options.leading=true] Specify invoking on the leading | |
| * edge of the timeout. | |
| * @param {boolean} [options.trailing=true] Specify invoking on the trailing | |
| * edge of the timeout. | |
| * @returns {Function} Returns the new throttled function. | |
| * @example | |
| * | |
| * // avoid excessively updating the position while scrolling | |
| * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); | |
| * | |
| * // invoke `renewToken` when the click event is fired, but not more than once every 5 minutes | |
| * jQuery('.interactive').on('click', _.throttle(renewToken, 300000, { | |
| * 'trailing': false | |
| * })); | |
| * | |
| * // cancel a trailing throttled call | |
| * jQuery(window).on('popstate', throttled.cancel); | |
| */ | |
| function throttle(func, wait, options) { | |
| var leading = true, | |
| trailing = true; | |
| if (typeof func != 'function') { | |
| throw new TypeError(FUNC_ERROR_TEXT); | |
| } | |
| if (options === false) { | |
| leading = false; | |
| } else if (isObject(options)) { | |
| leading = 'leading' in options ? !!options.leading : leading; | |
| trailing = 'trailing' in options ? !!options.trailing : trailing; | |
| } | |
| return debounce(func, wait, { 'leading': leading, 'maxWait': +wait, 'trailing': trailing }); | |
| } | |
| /** | |
| * Creates a function that provides `value` to the wrapper function as its | |
| * first argument. Any additional arguments provided to the function are | |
| * appended to those provided to the wrapper function. The wrapper is invoked | |
| * with the `this` binding of the created function. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Function | |
| * @param {*} value The value to wrap. | |
| * @param {Function} wrapper The wrapper function. | |
| * @returns {Function} Returns the new function. | |
| * @example | |
| * | |
| * var p = _.wrap(_.escape, function(func, text) { | |
| * return '<p>' + func(text) + '</p>'; | |
| * }); | |
| * | |
| * p('fred, barney, & pebbles'); | |
| * // => '<p>fred, barney, & pebbles</p>' | |
| */ | |
| function wrap(value, wrapper) { | |
| wrapper = wrapper == null ? identity : wrapper; | |
| return createWrapper(wrapper, PARTIAL_FLAG, undefined, [value], []); | |
| } | |
| /*------------------------------------------------------------------------*/ | |
| /** | |
| * Creates a clone of `value`. If `isDeep` is `true` nested objects are cloned, | |
| * otherwise they are assigned by reference. If `customizer` is provided it's | |
| * invoked to produce the cloned values. If `customizer` returns `undefined` | |
| * cloning is handled by the method instead. The `customizer` is bound to | |
| * `thisArg` and invoked with up to three argument; (value [, index|key, object]). | |
| * | |
| * **Note:** This method is loosely based on the | |
| * [structured clone algorithm](http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm). | |
| * The enumerable properties of `arguments` objects and objects created by | |
| * constructors other than `Object` are cloned to plain `Object` objects. An | |
| * empty object is returned for uncloneable values such as functions, DOM nodes, | |
| * Maps, Sets, and WeakMaps. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to clone. | |
| * @param {boolean} [isDeep] Specify a deep clone. | |
| * @param {Function} [customizer] The function to customize cloning values. | |
| * @param {*} [thisArg] The `this` binding of `customizer`. | |
| * @returns {*} Returns the cloned value. | |
| * @example | |
| * | |
| * var users = [ | |
| * { 'user': 'barney' }, | |
| * { 'user': 'fred' } | |
| * ]; | |
| * | |
| * var shallow = _.clone(users); | |
| * shallow[0] === users[0]; | |
| * // => true | |
| * | |
| * var deep = _.clone(users, true); | |
| * deep[0] === users[0]; | |
| * // => false | |
| * | |
| * // using a customizer callback | |
| * var el = _.clone(document.body, function(value) { | |
| * if (_.isElement(value)) { | |
| * return value.cloneNode(false); | |
| * } | |
| * }); | |
| * | |
| * el === document.body | |
| * // => false | |
| * el.nodeName | |
| * // => BODY | |
| * el.childNodes.length; | |
| * // => 0 | |
| */ | |
| function clone(value, isDeep, customizer, thisArg) { | |
| if (isDeep && typeof isDeep != 'boolean' && isIterateeCall(value, isDeep, customizer)) { | |
| isDeep = false; | |
| } | |
| else if (typeof isDeep == 'function') { | |
| thisArg = customizer; | |
| customizer = isDeep; | |
| isDeep = false; | |
| } | |
| return typeof customizer == 'function' | |
| ? baseClone(value, isDeep, bindCallback(customizer, thisArg, 3)) | |
| : baseClone(value, isDeep); | |
| } | |
| /** | |
| * Creates a deep clone of `value`. If `customizer` is provided it's invoked | |
| * to produce the cloned values. If `customizer` returns `undefined` cloning | |
| * is handled by the method instead. The `customizer` is bound to `thisArg` | |
| * and invoked with up to three argument; (value [, index|key, object]). | |
| * | |
| * **Note:** This method is loosely based on the | |
| * [structured clone algorithm](http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm). | |
| * The enumerable properties of `arguments` objects and objects created by | |
| * constructors other than `Object` are cloned to plain `Object` objects. An | |
| * empty object is returned for uncloneable values such as functions, DOM nodes, | |
| * Maps, Sets, and WeakMaps. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to deep clone. | |
| * @param {Function} [customizer] The function to customize cloning values. | |
| * @param {*} [thisArg] The `this` binding of `customizer`. | |
| * @returns {*} Returns the deep cloned value. | |
| * @example | |
| * | |
| * var users = [ | |
| * { 'user': 'barney' }, | |
| * { 'user': 'fred' } | |
| * ]; | |
| * | |
| * var deep = _.cloneDeep(users); | |
| * deep[0] === users[0]; | |
| * // => false | |
| * | |
| * // using a customizer callback | |
| * var el = _.cloneDeep(document.body, function(value) { | |
| * if (_.isElement(value)) { | |
| * return value.cloneNode(true); | |
| * } | |
| * }); | |
| * | |
| * el === document.body | |
| * // => false | |
| * el.nodeName | |
| * // => BODY | |
| * el.childNodes.length; | |
| * // => 20 | |
| */ | |
| function cloneDeep(value, customizer, thisArg) { | |
| return typeof customizer == 'function' | |
| ? baseClone(value, true, bindCallback(customizer, thisArg, 3)) | |
| : baseClone(value, true); | |
| } | |
| /** | |
| * Checks if `value` is greater than `other`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to compare. | |
| * @param {*} other The other value to compare. | |
| * @returns {boolean} Returns `true` if `value` is greater than `other`, else `false`. | |
| * @example | |
| * | |
| * _.gt(3, 1); | |
| * // => true | |
| * | |
| * _.gt(3, 3); | |
| * // => false | |
| * | |
| * _.gt(1, 3); | |
| * // => false | |
| */ | |
| function gt(value, other) { | |
| return value > other; | |
| } | |
| /** | |
| * Checks if `value` is greater than or equal to `other`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to compare. | |
| * @param {*} other The other value to compare. | |
| * @returns {boolean} Returns `true` if `value` is greater than or equal to `other`, else `false`. | |
| * @example | |
| * | |
| * _.gte(3, 1); | |
| * // => true | |
| * | |
| * _.gte(3, 3); | |
| * // => true | |
| * | |
| * _.gte(1, 3); | |
| * // => false | |
| */ | |
| function gte(value, other) { | |
| return value >= other; | |
| } | |
| /** | |
| * Checks if `value` is classified as an `arguments` object. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. | |
| * @example | |
| * | |
| * _.isArguments(function() { return arguments; }()); | |
| * // => true | |
| * | |
| * _.isArguments([1, 2, 3]); | |
| * // => false | |
| */ | |
| function isArguments(value) { | |
| return isObjectLike(value) && isArrayLike(value) && | |
| hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee'); | |
| } | |
| /** | |
| * Checks if `value` is classified as an `Array` object. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. | |
| * @example | |
| * | |
| * _.isArray([1, 2, 3]); | |
| * // => true | |
| * | |
| * _.isArray(function() { return arguments; }()); | |
| * // => false | |
| */ | |
| var isArray = nativeIsArray || function(value) { | |
| return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag; | |
| }; | |
| /** | |
| * Checks if `value` is classified as a boolean primitive or object. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. | |
| * @example | |
| * | |
| * _.isBoolean(false); | |
| * // => true | |
| * | |
| * _.isBoolean(null); | |
| * // => false | |
| */ | |
| function isBoolean(value) { | |
| return value === true || value === false || (isObjectLike(value) && objToString.call(value) == boolTag); | |
| } | |
| /** | |
| * Checks if `value` is classified as a `Date` object. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. | |
| * @example | |
| * | |
| * _.isDate(new Date); | |
| * // => true | |
| * | |
| * _.isDate('Mon April 23 2012'); | |
| * // => false | |
| */ | |
| function isDate(value) { | |
| return isObjectLike(value) && objToString.call(value) == dateTag; | |
| } | |
| /** | |
| * Checks if `value` is a DOM element. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`. | |
| * @example | |
| * | |
| * _.isElement(document.body); | |
| * // => true | |
| * | |
| * _.isElement('<body>'); | |
| * // => false | |
| */ | |
| function isElement(value) { | |
| return !!value && value.nodeType === 1 && isObjectLike(value) && !isPlainObject(value); | |
| } | |
| /** | |
| * Checks if `value` is empty. A value is considered empty unless it's an | |
| * `arguments` object, array, string, or jQuery-like collection with a length | |
| * greater than `0` or an object with own enumerable properties. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {Array|Object|string} value The value to inspect. | |
| * @returns {boolean} Returns `true` if `value` is empty, else `false`. | |
| * @example | |
| * | |
| * _.isEmpty(null); | |
| * // => true | |
| * | |
| * _.isEmpty(true); | |
| * // => true | |
| * | |
| * _.isEmpty(1); | |
| * // => true | |
| * | |
| * _.isEmpty([1, 2, 3]); | |
| * // => false | |
| * | |
| * _.isEmpty({ 'a': 1 }); | |
| * // => false | |
| */ | |
| function isEmpty(value) { | |
| if (value == null) { | |
| return true; | |
| } | |
| if (isArrayLike(value) && (isArray(value) || isString(value) || isArguments(value) || | |
| (isObjectLike(value) && isFunction(value.splice)))) { | |
| return !value.length; | |
| } | |
| return !keys(value).length; | |
| } | |
| /** | |
| * Performs a deep comparison between two values to determine if they are | |
| * equivalent. If `customizer` is provided it's invoked to compare values. | |
| * If `customizer` returns `undefined` comparisons are handled by the method | |
| * instead. The `customizer` is bound to `thisArg` and invoked with up to | |
| * three arguments: (value, other [, index|key]). | |
| * | |
| * **Note:** This method supports comparing arrays, booleans, `Date` objects, | |
| * numbers, `Object` objects, regexes, and strings. Objects are compared by | |
| * their own, not inherited, enumerable properties. Functions and DOM nodes | |
| * are **not** supported. Provide a customizer function to extend support | |
| * for comparing other values. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias eq | |
| * @category Lang | |
| * @param {*} value The value to compare. | |
| * @param {*} other The other value to compare. | |
| * @param {Function} [customizer] The function to customize value comparisons. | |
| * @param {*} [thisArg] The `this` binding of `customizer`. | |
| * @returns {boolean} Returns `true` if the values are equivalent, else `false`. | |
| * @example | |
| * | |
| * var object = { 'user': 'fred' }; | |
| * var other = { 'user': 'fred' }; | |
| * | |
| * object == other; | |
| * // => false | |
| * | |
| * _.isEqual(object, other); | |
| * // => true | |
| * | |
| * // using a customizer callback | |
| * var array = ['hello', 'goodbye']; | |
| * var other = ['hi', 'goodbye']; | |
| * | |
| * _.isEqual(array, other, function(value, other) { | |
| * if (_.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/)) { | |
| * return true; | |
| * } | |
| * }); | |
| * // => true | |
| */ | |
| function isEqual(value, other, customizer, thisArg) { | |
| customizer = typeof customizer == 'function' ? bindCallback(customizer, thisArg, 3) : undefined; | |
| var result = customizer ? customizer(value, other) : undefined; | |
| return result === undefined ? baseIsEqual(value, other, customizer) : !!result; | |
| } | |
| /** | |
| * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`, | |
| * `SyntaxError`, `TypeError`, or `URIError` object. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is an error object, else `false`. | |
| * @example | |
| * | |
| * _.isError(new Error); | |
| * // => true | |
| * | |
| * _.isError(Error); | |
| * // => false | |
| */ | |
| function isError(value) { | |
| return isObjectLike(value) && typeof value.message == 'string' && objToString.call(value) == errorTag; | |
| } | |
| /** | |
| * Checks if `value` is a finite primitive number. | |
| * | |
| * **Note:** This method is based on [`Number.isFinite`](http://ecma-international.org/ecma-262/6.0/#sec-number.isfinite). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. | |
| * @example | |
| * | |
| * _.isFinite(10); | |
| * // => true | |
| * | |
| * _.isFinite('10'); | |
| * // => false | |
| * | |
| * _.isFinite(true); | |
| * // => false | |
| * | |
| * _.isFinite(Object(10)); | |
| * // => false | |
| * | |
| * _.isFinite(Infinity); | |
| * // => false | |
| */ | |
| function isFinite(value) { | |
| return typeof value == 'number' && nativeIsFinite(value); | |
| } | |
| /** | |
| * Checks if `value` is classified as a `Function` object. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. | |
| * @example | |
| * | |
| * _.isFunction(_); | |
| * // => true | |
| * | |
| * _.isFunction(/abc/); | |
| * // => false | |
| */ | |
| function isFunction(value) { | |
| // The use of `Object#toString` avoids issues with the `typeof` operator | |
| // in older versions of Chrome and Safari which return 'function' for regexes | |
| // and Safari 8 which returns 'object' for typed array constructors. | |
| return isObject(value) && objToString.call(value) == funcTag; | |
| } | |
| /** | |
| * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`. | |
| * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is an object, else `false`. | |
| * @example | |
| * | |
| * _.isObject({}); | |
| * // => true | |
| * | |
| * _.isObject([1, 2, 3]); | |
| * // => true | |
| * | |
| * _.isObject(1); | |
| * // => false | |
| */ | |
| function isObject(value) { | |
| // Avoid a V8 JIT bug in Chrome 19-20. | |
| // See https://code.google.com/p/v8/issues/detail?id=2291 for more details. | |
| var type = typeof value; | |
| return !!value && (type == 'object' || type == 'function'); | |
| } | |
| /** | |
| * Performs a deep comparison between `object` and `source` to determine if | |
| * `object` contains equivalent property values. If `customizer` is provided | |
| * it's invoked to compare values. If `customizer` returns `undefined` | |
| * comparisons are handled by the method instead. The `customizer` is bound | |
| * to `thisArg` and invoked with three arguments: (value, other, index|key). | |
| * | |
| * **Note:** This method supports comparing properties of arrays, booleans, | |
| * `Date` objects, numbers, `Object` objects, regexes, and strings. Functions | |
| * and DOM nodes are **not** supported. Provide a customizer function to extend | |
| * support for comparing other values. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {Object} object The object to inspect. | |
| * @param {Object} source The object of property values to match. | |
| * @param {Function} [customizer] The function to customize value comparisons. | |
| * @param {*} [thisArg] The `this` binding of `customizer`. | |
| * @returns {boolean} Returns `true` if `object` is a match, else `false`. | |
| * @example | |
| * | |
| * var object = { 'user': 'fred', 'age': 40 }; | |
| * | |
| * _.isMatch(object, { 'age': 40 }); | |
| * // => true | |
| * | |
| * _.isMatch(object, { 'age': 36 }); | |
| * // => false | |
| * | |
| * // using a customizer callback | |
| * var object = { 'greeting': 'hello' }; | |
| * var source = { 'greeting': 'hi' }; | |
| * | |
| * _.isMatch(object, source, function(value, other) { | |
| * return _.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/) || undefined; | |
| * }); | |
| * // => true | |
| */ | |
| function isMatch(object, source, customizer, thisArg) { | |
| customizer = typeof customizer == 'function' ? bindCallback(customizer, thisArg, 3) : undefined; | |
| return baseIsMatch(object, getMatchData(source), customizer); | |
| } | |
| /** | |
| * Checks if `value` is `NaN`. | |
| * | |
| * **Note:** This method is not the same as [`isNaN`](https://es5.github.io/#x15.1.2.4) | |
| * which returns `true` for `undefined` and other non-numeric values. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. | |
| * @example | |
| * | |
| * _.isNaN(NaN); | |
| * // => true | |
| * | |
| * _.isNaN(new Number(NaN)); | |
| * // => true | |
| * | |
| * isNaN(undefined); | |
| * // => true | |
| * | |
| * _.isNaN(undefined); | |
| * // => false | |
| */ | |
| function isNaN(value) { | |
| // An `NaN` primitive is the only value that is not equal to itself. | |
| // Perform the `toStringTag` check first to avoid errors with some host objects in IE. | |
| return isNumber(value) && value != +value; | |
| } | |
| /** | |
| * Checks if `value` is a native function. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is a native function, else `false`. | |
| * @example | |
| * | |
| * _.isNative(Array.prototype.push); | |
| * // => true | |
| * | |
| * _.isNative(_); | |
| * // => false | |
| */ | |
| function isNative(value) { | |
| if (value == null) { | |
| return false; | |
| } | |
| if (isFunction(value)) { | |
| return reIsNative.test(fnToString.call(value)); | |
| } | |
| return isObjectLike(value) && reIsHostCtor.test(value); | |
| } | |
| /** | |
| * Checks if `value` is `null`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is `null`, else `false`. | |
| * @example | |
| * | |
| * _.isNull(null); | |
| * // => true | |
| * | |
| * _.isNull(void 0); | |
| * // => false | |
| */ | |
| function isNull(value) { | |
| return value === null; | |
| } | |
| /** | |
| * Checks if `value` is classified as a `Number` primitive or object. | |
| * | |
| * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are classified | |
| * as numbers, use the `_.isFinite` method. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. | |
| * @example | |
| * | |
| * _.isNumber(8.4); | |
| * // => true | |
| * | |
| * _.isNumber(NaN); | |
| * // => true | |
| * | |
| * _.isNumber('8.4'); | |
| * // => false | |
| */ | |
| function isNumber(value) { | |
| return typeof value == 'number' || (isObjectLike(value) && objToString.call(value) == numberTag); | |
| } | |
| /** | |
| * Checks if `value` is a plain object, that is, an object created by the | |
| * `Object` constructor or one with a `[[Prototype]]` of `null`. | |
| * | |
| * **Note:** This method assumes objects created by the `Object` constructor | |
| * have no inherited enumerable properties. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. | |
| * @example | |
| * | |
| * function Foo() { | |
| * this.a = 1; | |
| * } | |
| * | |
| * _.isPlainObject(new Foo); | |
| * // => false | |
| * | |
| * _.isPlainObject([1, 2, 3]); | |
| * // => false | |
| * | |
| * _.isPlainObject({ 'x': 0, 'y': 0 }); | |
| * // => true | |
| * | |
| * _.isPlainObject(Object.create(null)); | |
| * // => true | |
| */ | |
| function isPlainObject(value) { | |
| var Ctor; | |
| // Exit early for non `Object` objects. | |
| if (!(isObjectLike(value) && objToString.call(value) == objectTag && !isArguments(value)) || | |
| (!hasOwnProperty.call(value, 'constructor') && (Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) { | |
| return false; | |
| } | |
| // IE < 9 iterates inherited properties before own properties. If the first | |
| // iterated property is an object's own property then there are no inherited | |
| // enumerable properties. | |
| var result; | |
| // In most environments an object's own properties are iterated before | |
| // its inherited properties. If the last iterated property is an object's | |
| // own property then there are no inherited enumerable properties. | |
| baseForIn(value, function(subValue, key) { | |
| result = key; | |
| }); | |
| return result === undefined || hasOwnProperty.call(value, result); | |
| } | |
| /** | |
| * Checks if `value` is classified as a `RegExp` object. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. | |
| * @example | |
| * | |
| * _.isRegExp(/abc/); | |
| * // => true | |
| * | |
| * _.isRegExp('/abc/'); | |
| * // => false | |
| */ | |
| function isRegExp(value) { | |
| return isObject(value) && objToString.call(value) == regexpTag; | |
| } | |
| /** | |
| * Checks if `value` is classified as a `String` primitive or object. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. | |
| * @example | |
| * | |
| * _.isString('abc'); | |
| * // => true | |
| * | |
| * _.isString(1); | |
| * // => false | |
| */ | |
| function isString(value) { | |
| return typeof value == 'string' || (isObjectLike(value) && objToString.call(value) == stringTag); | |
| } | |
| /** | |
| * Checks if `value` is classified as a typed array. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. | |
| * @example | |
| * | |
| * _.isTypedArray(new Uint8Array); | |
| * // => true | |
| * | |
| * _.isTypedArray([]); | |
| * // => false | |
| */ | |
| function isTypedArray(value) { | |
| return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)]; | |
| } | |
| /** | |
| * Checks if `value` is `undefined`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. | |
| * @example | |
| * | |
| * _.isUndefined(void 0); | |
| * // => true | |
| * | |
| * _.isUndefined(null); | |
| * // => false | |
| */ | |
| function isUndefined(value) { | |
| return value === undefined; | |
| } | |
| /** | |
| * Checks if `value` is less than `other`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to compare. | |
| * @param {*} other The other value to compare. | |
| * @returns {boolean} Returns `true` if `value` is less than `other`, else `false`. | |
| * @example | |
| * | |
| * _.lt(1, 3); | |
| * // => true | |
| * | |
| * _.lt(3, 3); | |
| * // => false | |
| * | |
| * _.lt(3, 1); | |
| * // => false | |
| */ | |
| function lt(value, other) { | |
| return value < other; | |
| } | |
| /** | |
| * Checks if `value` is less than or equal to `other`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to compare. | |
| * @param {*} other The other value to compare. | |
| * @returns {boolean} Returns `true` if `value` is less than or equal to `other`, else `false`. | |
| * @example | |
| * | |
| * _.lte(1, 3); | |
| * // => true | |
| * | |
| * _.lte(3, 3); | |
| * // => true | |
| * | |
| * _.lte(3, 1); | |
| * // => false | |
| */ | |
| function lte(value, other) { | |
| return value <= other; | |
| } | |
| /** | |
| * Converts `value` to an array. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to convert. | |
| * @returns {Array} Returns the converted array. | |
| * @example | |
| * | |
| * (function() { | |
| * return _.toArray(arguments).slice(1); | |
| * }(1, 2, 3)); | |
| * // => [2, 3] | |
| */ | |
| function toArray(value) { | |
| var length = value ? getLength(value) : 0; | |
| if (!isLength(length)) { | |
| return values(value); | |
| } | |
| if (!length) { | |
| return []; | |
| } | |
| return arrayCopy(value); | |
| } | |
| /** | |
| * Converts `value` to a plain object flattening inherited enumerable | |
| * properties of `value` to own properties of the plain object. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Lang | |
| * @param {*} value The value to convert. | |
| * @returns {Object} Returns the converted plain object. | |
| * @example | |
| * | |
| * function Foo() { | |
| * this.b = 2; | |
| * } | |
| * | |
| * Foo.prototype.c = 3; | |
| * | |
| * _.assign({ 'a': 1 }, new Foo); | |
| * // => { 'a': 1, 'b': 2 } | |
| * | |
| * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); | |
| * // => { 'a': 1, 'b': 2, 'c': 3 } | |
| */ | |
| function toPlainObject(value) { | |
| return baseCopy(value, keysIn(value)); | |
| } | |
| /*------------------------------------------------------------------------*/ | |
| /** | |
| * Recursively merges own enumerable properties of the source object(s), that | |
| * don't resolve to `undefined` into the destination object. Subsequent sources | |
| * overwrite property assignments of previous sources. If `customizer` is | |
| * provided it's invoked to produce the merged values of the destination and | |
| * source properties. If `customizer` returns `undefined` merging is handled | |
| * by the method instead. The `customizer` is bound to `thisArg` and invoked | |
| * with five arguments: (objectValue, sourceValue, key, object, source). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The destination object. | |
| * @param {...Object} [sources] The source objects. | |
| * @param {Function} [customizer] The function to customize assigned values. | |
| * @param {*} [thisArg] The `this` binding of `customizer`. | |
| * @returns {Object} Returns `object`. | |
| * @example | |
| * | |
| * var users = { | |
| * 'data': [{ 'user': 'barney' }, { 'user': 'fred' }] | |
| * }; | |
| * | |
| * var ages = { | |
| * 'data': [{ 'age': 36 }, { 'age': 40 }] | |
| * }; | |
| * | |
| * _.merge(users, ages); | |
| * // => { 'data': [{ 'user': 'barney', 'age': 36 }, { 'user': 'fred', 'age': 40 }] } | |
| * | |
| * // using a customizer callback | |
| * var object = { | |
| * 'fruits': ['apple'], | |
| * 'vegetables': ['beet'] | |
| * }; | |
| * | |
| * var other = { | |
| * 'fruits': ['banana'], | |
| * 'vegetables': ['carrot'] | |
| * }; | |
| * | |
| * _.merge(object, other, function(a, b) { | |
| * if (_.isArray(a)) { | |
| * return a.concat(b); | |
| * } | |
| * }); | |
| * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] } | |
| */ | |
| var merge = createAssigner(baseMerge); | |
| /** | |
| * Assigns own enumerable properties of source object(s) to the destination | |
| * object. Subsequent sources overwrite property assignments of previous sources. | |
| * If `customizer` is provided it's invoked to produce the assigned values. | |
| * The `customizer` is bound to `thisArg` and invoked with five arguments: | |
| * (objectValue, sourceValue, key, object, source). | |
| * | |
| * **Note:** This method mutates `object` and is based on | |
| * [`Object.assign`](http://ecma-international.org/ecma-262/6.0/#sec-object.assign). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias extend | |
| * @category Object | |
| * @param {Object} object The destination object. | |
| * @param {...Object} [sources] The source objects. | |
| * @param {Function} [customizer] The function to customize assigned values. | |
| * @param {*} [thisArg] The `this` binding of `customizer`. | |
| * @returns {Object} Returns `object`. | |
| * @example | |
| * | |
| * _.assign({ 'user': 'barney' }, { 'age': 40 }, { 'user': 'fred' }); | |
| * // => { 'user': 'fred', 'age': 40 } | |
| * | |
| * // using a customizer callback | |
| * var defaults = _.partialRight(_.assign, function(value, other) { | |
| * return _.isUndefined(value) ? other : value; | |
| * }); | |
| * | |
| * defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' }); | |
| * // => { 'user': 'barney', 'age': 36 } | |
| */ | |
| var assign = createAssigner(function(object, source, customizer) { | |
| return customizer | |
| ? assignWith(object, source, customizer) | |
| : baseAssign(object, source); | |
| }); | |
| /** | |
| * Creates an object that inherits from the given `prototype` object. If a | |
| * `properties` object is provided its own enumerable properties are assigned | |
| * to the created object. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} prototype The object to inherit from. | |
| * @param {Object} [properties] The properties to assign to the object. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {Object} Returns the new object. | |
| * @example | |
| * | |
| * function Shape() { | |
| * this.x = 0; | |
| * this.y = 0; | |
| * } | |
| * | |
| * function Circle() { | |
| * Shape.call(this); | |
| * } | |
| * | |
| * Circle.prototype = _.create(Shape.prototype, { | |
| * 'constructor': Circle | |
| * }); | |
| * | |
| * var circle = new Circle; | |
| * circle instanceof Circle; | |
| * // => true | |
| * | |
| * circle instanceof Shape; | |
| * // => true | |
| */ | |
| function create(prototype, properties, guard) { | |
| var result = baseCreate(prototype); | |
| if (guard && isIterateeCall(prototype, properties, guard)) { | |
| properties = undefined; | |
| } | |
| return properties ? baseAssign(result, properties) : result; | |
| } | |
| /** | |
| * Assigns own enumerable properties of source object(s) to the destination | |
| * object for all destination properties that resolve to `undefined`. Once a | |
| * property is set, additional values of the same property are ignored. | |
| * | |
| * **Note:** This method mutates `object`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The destination object. | |
| * @param {...Object} [sources] The source objects. | |
| * @returns {Object} Returns `object`. | |
| * @example | |
| * | |
| * _.defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' }); | |
| * // => { 'user': 'barney', 'age': 36 } | |
| */ | |
| var defaults = createDefaults(assign, assignDefaults); | |
| /** | |
| * This method is like `_.defaults` except that it recursively assigns | |
| * default properties. | |
| * | |
| * **Note:** This method mutates `object`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The destination object. | |
| * @param {...Object} [sources] The source objects. | |
| * @returns {Object} Returns `object`. | |
| * @example | |
| * | |
| * _.defaultsDeep({ 'user': { 'name': 'barney' } }, { 'user': { 'name': 'fred', 'age': 36 } }); | |
| * // => { 'user': { 'name': 'barney', 'age': 36 } } | |
| * | |
| */ | |
| var defaultsDeep = createDefaults(merge, mergeDefaults); | |
| /** | |
| * This method is like `_.find` except that it returns the key of the first | |
| * element `predicate` returns truthy for instead of the element itself. | |
| * | |
| * If a property name is provided for `predicate` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `predicate` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to search. | |
| * @param {Function|Object|string} [predicate=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {string|undefined} Returns the key of the matched element, else `undefined`. | |
| * @example | |
| * | |
| * var users = { | |
| * 'barney': { 'age': 36, 'active': true }, | |
| * 'fred': { 'age': 40, 'active': false }, | |
| * 'pebbles': { 'age': 1, 'active': true } | |
| * }; | |
| * | |
| * _.findKey(users, function(chr) { | |
| * return chr.age < 40; | |
| * }); | |
| * // => 'barney' (iteration order is not guaranteed) | |
| * | |
| * // using the `_.matches` callback shorthand | |
| * _.findKey(users, { 'age': 1, 'active': true }); | |
| * // => 'pebbles' | |
| * | |
| * // using the `_.matchesProperty` callback shorthand | |
| * _.findKey(users, 'active', false); | |
| * // => 'fred' | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.findKey(users, 'active'); | |
| * // => 'barney' | |
| */ | |
| var findKey = createFindKey(baseForOwn); | |
| /** | |
| * This method is like `_.findKey` except that it iterates over elements of | |
| * a collection in the opposite order. | |
| * | |
| * If a property name is provided for `predicate` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `predicate` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to search. | |
| * @param {Function|Object|string} [predicate=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {string|undefined} Returns the key of the matched element, else `undefined`. | |
| * @example | |
| * | |
| * var users = { | |
| * 'barney': { 'age': 36, 'active': true }, | |
| * 'fred': { 'age': 40, 'active': false }, | |
| * 'pebbles': { 'age': 1, 'active': true } | |
| * }; | |
| * | |
| * _.findLastKey(users, function(chr) { | |
| * return chr.age < 40; | |
| * }); | |
| * // => returns `pebbles` assuming `_.findKey` returns `barney` | |
| * | |
| * // using the `_.matches` callback shorthand | |
| * _.findLastKey(users, { 'age': 36, 'active': true }); | |
| * // => 'barney' | |
| * | |
| * // using the `_.matchesProperty` callback shorthand | |
| * _.findLastKey(users, 'active', false); | |
| * // => 'fred' | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.findLastKey(users, 'active'); | |
| * // => 'pebbles' | |
| */ | |
| var findLastKey = createFindKey(baseForOwnRight); | |
| /** | |
| * Iterates over own and inherited enumerable properties of an object invoking | |
| * `iteratee` for each property. The `iteratee` is bound to `thisArg` and invoked | |
| * with three arguments: (value, key, object). Iteratee functions may exit | |
| * iteration early by explicitly returning `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to iterate over. | |
| * @param {Function} [iteratee=_.identity] The function invoked per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {Object} Returns `object`. | |
| * @example | |
| * | |
| * function Foo() { | |
| * this.a = 1; | |
| * this.b = 2; | |
| * } | |
| * | |
| * Foo.prototype.c = 3; | |
| * | |
| * _.forIn(new Foo, function(value, key) { | |
| * console.log(key); | |
| * }); | |
| * // => logs 'a', 'b', and 'c' (iteration order is not guaranteed) | |
| */ | |
| var forIn = createForIn(baseFor); | |
| /** | |
| * This method is like `_.forIn` except that it iterates over properties of | |
| * `object` in the opposite order. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to iterate over. | |
| * @param {Function} [iteratee=_.identity] The function invoked per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {Object} Returns `object`. | |
| * @example | |
| * | |
| * function Foo() { | |
| * this.a = 1; | |
| * this.b = 2; | |
| * } | |
| * | |
| * Foo.prototype.c = 3; | |
| * | |
| * _.forInRight(new Foo, function(value, key) { | |
| * console.log(key); | |
| * }); | |
| * // => logs 'c', 'b', and 'a' assuming `_.forIn ` logs 'a', 'b', and 'c' | |
| */ | |
| var forInRight = createForIn(baseForRight); | |
| /** | |
| * Iterates over own enumerable properties of an object invoking `iteratee` | |
| * for each property. The `iteratee` is bound to `thisArg` and invoked with | |
| * three arguments: (value, key, object). Iteratee functions may exit iteration | |
| * early by explicitly returning `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to iterate over. | |
| * @param {Function} [iteratee=_.identity] The function invoked per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {Object} Returns `object`. | |
| * @example | |
| * | |
| * function Foo() { | |
| * this.a = 1; | |
| * this.b = 2; | |
| * } | |
| * | |
| * Foo.prototype.c = 3; | |
| * | |
| * _.forOwn(new Foo, function(value, key) { | |
| * console.log(key); | |
| * }); | |
| * // => logs 'a' and 'b' (iteration order is not guaranteed) | |
| */ | |
| var forOwn = createForOwn(baseForOwn); | |
| /** | |
| * This method is like `_.forOwn` except that it iterates over properties of | |
| * `object` in the opposite order. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to iterate over. | |
| * @param {Function} [iteratee=_.identity] The function invoked per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {Object} Returns `object`. | |
| * @example | |
| * | |
| * function Foo() { | |
| * this.a = 1; | |
| * this.b = 2; | |
| * } | |
| * | |
| * Foo.prototype.c = 3; | |
| * | |
| * _.forOwnRight(new Foo, function(value, key) { | |
| * console.log(key); | |
| * }); | |
| * // => logs 'b' and 'a' assuming `_.forOwn` logs 'a' and 'b' | |
| */ | |
| var forOwnRight = createForOwn(baseForOwnRight); | |
| /** | |
| * Creates an array of function property names from all enumerable properties, | |
| * own and inherited, of `object`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias methods | |
| * @category Object | |
| * @param {Object} object The object to inspect. | |
| * @returns {Array} Returns the new array of property names. | |
| * @example | |
| * | |
| * _.functions(_); | |
| * // => ['after', 'ary', 'assign', ...] | |
| */ | |
| function functions(object) { | |
| return baseFunctions(object, keysIn(object)); | |
| } | |
| /** | |
| * Gets the property value at `path` of `object`. If the resolved value is | |
| * `undefined` the `defaultValue` is used in its place. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to query. | |
| * @param {Array|string} path The path of the property to get. | |
| * @param {*} [defaultValue] The value returned if the resolved value is `undefined`. | |
| * @returns {*} Returns the resolved value. | |
| * @example | |
| * | |
| * var object = { 'a': [{ 'b': { 'c': 3 } }] }; | |
| * | |
| * _.get(object, 'a[0].b.c'); | |
| * // => 3 | |
| * | |
| * _.get(object, ['a', '0', 'b', 'c']); | |
| * // => 3 | |
| * | |
| * _.get(object, 'a.b.c', 'default'); | |
| * // => 'default' | |
| */ | |
| function get(object, path, defaultValue) { | |
| var result = object == null ? undefined : baseGet(object, toPath(path), (path + '')); | |
| return result === undefined ? defaultValue : result; | |
| } | |
| /** | |
| * Checks if `path` is a direct property. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to query. | |
| * @param {Array|string} path The path to check. | |
| * @returns {boolean} Returns `true` if `path` is a direct property, else `false`. | |
| * @example | |
| * | |
| * var object = { 'a': { 'b': { 'c': 3 } } }; | |
| * | |
| * _.has(object, 'a'); | |
| * // => true | |
| * | |
| * _.has(object, 'a.b.c'); | |
| * // => true | |
| * | |
| * _.has(object, ['a', 'b', 'c']); | |
| * // => true | |
| */ | |
| function has(object, path) { | |
| if (object == null) { | |
| return false; | |
| } | |
| var result = hasOwnProperty.call(object, path); | |
| if (!result && !isKey(path)) { | |
| path = toPath(path); | |
| object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1)); | |
| if (object == null) { | |
| return false; | |
| } | |
| path = last(path); | |
| result = hasOwnProperty.call(object, path); | |
| } | |
| return result || (isLength(object.length) && isIndex(path, object.length) && | |
| (isArray(object) || isArguments(object))); | |
| } | |
| /** | |
| * Creates an object composed of the inverted keys and values of `object`. | |
| * If `object` contains duplicate values, subsequent values overwrite property | |
| * assignments of previous values unless `multiValue` is `true`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to invert. | |
| * @param {boolean} [multiValue] Allow multiple values per key. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {Object} Returns the new inverted object. | |
| * @example | |
| * | |
| * var object = { 'a': 1, 'b': 2, 'c': 1 }; | |
| * | |
| * _.invert(object); | |
| * // => { '1': 'c', '2': 'b' } | |
| * | |
| * // with `multiValue` | |
| * _.invert(object, true); | |
| * // => { '1': ['a', 'c'], '2': ['b'] } | |
| */ | |
| function invert(object, multiValue, guard) { | |
| if (guard && isIterateeCall(object, multiValue, guard)) { | |
| multiValue = undefined; | |
| } | |
| var index = -1, | |
| props = keys(object), | |
| length = props.length, | |
| result = {}; | |
| while (++index < length) { | |
| var key = props[index], | |
| value = object[key]; | |
| if (multiValue) { | |
| if (hasOwnProperty.call(result, value)) { | |
| result[value].push(key); | |
| } else { | |
| result[value] = [key]; | |
| } | |
| } | |
| else { | |
| result[value] = key; | |
| } | |
| } | |
| return result; | |
| } | |
| /** | |
| * Creates an array of the own enumerable property names of `object`. | |
| * | |
| * **Note:** Non-object values are coerced to objects. See the | |
| * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys) | |
| * for more details. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to query. | |
| * @returns {Array} Returns the array of property names. | |
| * @example | |
| * | |
| * function Foo() { | |
| * this.a = 1; | |
| * this.b = 2; | |
| * } | |
| * | |
| * Foo.prototype.c = 3; | |
| * | |
| * _.keys(new Foo); | |
| * // => ['a', 'b'] (iteration order is not guaranteed) | |
| * | |
| * _.keys('hi'); | |
| * // => ['0', '1'] | |
| */ | |
| var keys = !nativeKeys ? shimKeys : function(object) { | |
| var Ctor = object == null ? undefined : object.constructor; | |
| if ((typeof Ctor == 'function' && Ctor.prototype === object) || | |
| (typeof object != 'function' && isArrayLike(object))) { | |
| return shimKeys(object); | |
| } | |
| return isObject(object) ? nativeKeys(object) : []; | |
| }; | |
| /** | |
| * Creates an array of the own and inherited enumerable property names of `object`. | |
| * | |
| * **Note:** Non-object values are coerced to objects. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to query. | |
| * @returns {Array} Returns the array of property names. | |
| * @example | |
| * | |
| * function Foo() { | |
| * this.a = 1; | |
| * this.b = 2; | |
| * } | |
| * | |
| * Foo.prototype.c = 3; | |
| * | |
| * _.keysIn(new Foo); | |
| * // => ['a', 'b', 'c'] (iteration order is not guaranteed) | |
| */ | |
| function keysIn(object) { | |
| if (object == null) { | |
| return []; | |
| } | |
| if (!isObject(object)) { | |
| object = Object(object); | |
| } | |
| var length = object.length; | |
| length = (length && isLength(length) && | |
| (isArray(object) || isArguments(object)) && length) || 0; | |
| var Ctor = object.constructor, | |
| index = -1, | |
| isProto = typeof Ctor == 'function' && Ctor.prototype === object, | |
| result = Array(length), | |
| skipIndexes = length > 0; | |
| while (++index < length) { | |
| result[index] = (index + ''); | |
| } | |
| for (var key in object) { | |
| if (!(skipIndexes && isIndex(key, length)) && | |
| !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { | |
| result.push(key); | |
| } | |
| } | |
| return result; | |
| } | |
| /** | |
| * The opposite of `_.mapValues`; this method creates an object with the | |
| * same values as `object` and keys generated by running each own enumerable | |
| * property of `object` through `iteratee`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to iterate over. | |
| * @param {Function|Object|string} [iteratee=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {Object} Returns the new mapped object. | |
| * @example | |
| * | |
| * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) { | |
| * return key + value; | |
| * }); | |
| * // => { 'a1': 1, 'b2': 2 } | |
| */ | |
| var mapKeys = createObjectMapper(true); | |
| /** | |
| * Creates an object with the same keys as `object` and values generated by | |
| * running each own enumerable property of `object` through `iteratee`. The | |
| * iteratee function is bound to `thisArg` and invoked with three arguments: | |
| * (value, key, object). | |
| * | |
| * If a property name is provided for `iteratee` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `iteratee` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to iterate over. | |
| * @param {Function|Object|string} [iteratee=_.identity] The function invoked | |
| * per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {Object} Returns the new mapped object. | |
| * @example | |
| * | |
| * _.mapValues({ 'a': 1, 'b': 2 }, function(n) { | |
| * return n * 3; | |
| * }); | |
| * // => { 'a': 3, 'b': 6 } | |
| * | |
| * var users = { | |
| * 'fred': { 'user': 'fred', 'age': 40 }, | |
| * 'pebbles': { 'user': 'pebbles', 'age': 1 } | |
| * }; | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.mapValues(users, 'age'); | |
| * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed) | |
| */ | |
| var mapValues = createObjectMapper(); | |
| /** | |
| * The opposite of `_.pick`; this method creates an object composed of the | |
| * own and inherited enumerable properties of `object` that are not omitted. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The source object. | |
| * @param {Function|...(string|string[])} [predicate] The function invoked per | |
| * iteration or property names to omit, specified as individual property | |
| * names or arrays of property names. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {Object} Returns the new object. | |
| * @example | |
| * | |
| * var object = { 'user': 'fred', 'age': 40 }; | |
| * | |
| * _.omit(object, 'age'); | |
| * // => { 'user': 'fred' } | |
| * | |
| * _.omit(object, _.isNumber); | |
| * // => { 'user': 'fred' } | |
| */ | |
| var omit = restParam(function(object, props) { | |
| if (object == null) { | |
| return {}; | |
| } | |
| if (typeof props[0] != 'function') { | |
| var props = arrayMap(baseFlatten(props), String); | |
| return pickByArray(object, baseDifference(keysIn(object), props)); | |
| } | |
| var predicate = bindCallback(props[0], props[1], 3); | |
| return pickByCallback(object, function(value, key, object) { | |
| return !predicate(value, key, object); | |
| }); | |
| }); | |
| /** | |
| * Creates a two dimensional array of the key-value pairs for `object`, | |
| * e.g. `[[key1, value1], [key2, value2]]`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to query. | |
| * @returns {Array} Returns the new array of key-value pairs. | |
| * @example | |
| * | |
| * _.pairs({ 'barney': 36, 'fred': 40 }); | |
| * // => [['barney', 36], ['fred', 40]] (iteration order is not guaranteed) | |
| */ | |
| function pairs(object) { | |
| object = toObject(object); | |
| var index = -1, | |
| props = keys(object), | |
| length = props.length, | |
| result = Array(length); | |
| while (++index < length) { | |
| var key = props[index]; | |
| result[index] = [key, object[key]]; | |
| } | |
| return result; | |
| } | |
| /** | |
| * Creates an object composed of the picked `object` properties. Property | |
| * names may be specified as individual arguments or as arrays of property | |
| * names. If `predicate` is provided it's invoked for each property of `object` | |
| * picking the properties `predicate` returns truthy for. The predicate is | |
| * bound to `thisArg` and invoked with three arguments: (value, key, object). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The source object. | |
| * @param {Function|...(string|string[])} [predicate] The function invoked per | |
| * iteration or property names to pick, specified as individual property | |
| * names or arrays of property names. | |
| * @param {*} [thisArg] The `this` binding of `predicate`. | |
| * @returns {Object} Returns the new object. | |
| * @example | |
| * | |
| * var object = { 'user': 'fred', 'age': 40 }; | |
| * | |
| * _.pick(object, 'user'); | |
| * // => { 'user': 'fred' } | |
| * | |
| * _.pick(object, _.isString); | |
| * // => { 'user': 'fred' } | |
| */ | |
| var pick = restParam(function(object, props) { | |
| if (object == null) { | |
| return {}; | |
| } | |
| return typeof props[0] == 'function' | |
| ? pickByCallback(object, bindCallback(props[0], props[1], 3)) | |
| : pickByArray(object, baseFlatten(props)); | |
| }); | |
| /** | |
| * This method is like `_.get` except that if the resolved value is a function | |
| * it's invoked with the `this` binding of its parent object and its result | |
| * is returned. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to query. | |
| * @param {Array|string} path The path of the property to resolve. | |
| * @param {*} [defaultValue] The value returned if the resolved value is `undefined`. | |
| * @returns {*} Returns the resolved value. | |
| * @example | |
| * | |
| * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; | |
| * | |
| * _.result(object, 'a[0].b.c1'); | |
| * // => 3 | |
| * | |
| * _.result(object, 'a[0].b.c2'); | |
| * // => 4 | |
| * | |
| * _.result(object, 'a.b.c', 'default'); | |
| * // => 'default' | |
| * | |
| * _.result(object, 'a.b.c', _.constant('default')); | |
| * // => 'default' | |
| */ | |
| function result(object, path, defaultValue) { | |
| var result = object == null ? undefined : object[path]; | |
| if (result === undefined) { | |
| if (object != null && !isKey(path, object)) { | |
| path = toPath(path); | |
| object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1)); | |
| result = object == null ? undefined : object[last(path)]; | |
| } | |
| result = result === undefined ? defaultValue : result; | |
| } | |
| return isFunction(result) ? result.call(object) : result; | |
| } | |
| /** | |
| * Sets the property value of `path` on `object`. If a portion of `path` | |
| * does not exist it's created. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to augment. | |
| * @param {Array|string} path The path of the property to set. | |
| * @param {*} value The value to set. | |
| * @returns {Object} Returns `object`. | |
| * @example | |
| * | |
| * var object = { 'a': [{ 'b': { 'c': 3 } }] }; | |
| * | |
| * _.set(object, 'a[0].b.c', 4); | |
| * console.log(object.a[0].b.c); | |
| * // => 4 | |
| * | |
| * _.set(object, 'x[0].y.z', 5); | |
| * console.log(object.x[0].y.z); | |
| * // => 5 | |
| */ | |
| function set(object, path, value) { | |
| if (object == null) { | |
| return object; | |
| } | |
| var pathKey = (path + ''); | |
| path = (object[pathKey] != null || isKey(path, object)) ? [pathKey] : toPath(path); | |
| var index = -1, | |
| length = path.length, | |
| lastIndex = length - 1, | |
| nested = object; | |
| while (nested != null && ++index < length) { | |
| var key = path[index]; | |
| if (isObject(nested)) { | |
| if (index == lastIndex) { | |
| nested[key] = value; | |
| } else if (nested[key] == null) { | |
| nested[key] = isIndex(path[index + 1]) ? [] : {}; | |
| } | |
| } | |
| nested = nested[key]; | |
| } | |
| return object; | |
| } | |
| /** | |
| * An alternative to `_.reduce`; this method transforms `object` to a new | |
| * `accumulator` object which is the result of running each of its own enumerable | |
| * properties through `iteratee`, with each invocation potentially mutating | |
| * the `accumulator` object. The `iteratee` is bound to `thisArg` and invoked | |
| * with four arguments: (accumulator, value, key, object). Iteratee functions | |
| * may exit iteration early by explicitly returning `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Array|Object} object The object to iterate over. | |
| * @param {Function} [iteratee=_.identity] The function invoked per iteration. | |
| * @param {*} [accumulator] The custom accumulator value. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {*} Returns the accumulated value. | |
| * @example | |
| * | |
| * _.transform([2, 3, 4], function(result, n) { | |
| * result.push(n *= n); | |
| * return n % 2 == 0; | |
| * }); | |
| * // => [4, 9] | |
| * | |
| * _.transform({ 'a': 1, 'b': 2 }, function(result, n, key) { | |
| * result[key] = n * 3; | |
| * }); | |
| * // => { 'a': 3, 'b': 6 } | |
| */ | |
| function transform(object, iteratee, accumulator, thisArg) { | |
| var isArr = isArray(object) || isTypedArray(object); | |
| iteratee = getCallback(iteratee, thisArg, 4); | |
| if (accumulator == null) { | |
| if (isArr || isObject(object)) { | |
| var Ctor = object.constructor; | |
| if (isArr) { | |
| accumulator = isArray(object) ? new Ctor : []; | |
| } else { | |
| accumulator = baseCreate(isFunction(Ctor) ? Ctor.prototype : undefined); | |
| } | |
| } else { | |
| accumulator = {}; | |
| } | |
| } | |
| (isArr ? arrayEach : baseForOwn)(object, function(value, index, object) { | |
| return iteratee(accumulator, value, index, object); | |
| }); | |
| return accumulator; | |
| } | |
| /** | |
| * Creates an array of the own enumerable property values of `object`. | |
| * | |
| * **Note:** Non-object values are coerced to objects. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to query. | |
| * @returns {Array} Returns the array of property values. | |
| * @example | |
| * | |
| * function Foo() { | |
| * this.a = 1; | |
| * this.b = 2; | |
| * } | |
| * | |
| * Foo.prototype.c = 3; | |
| * | |
| * _.values(new Foo); | |
| * // => [1, 2] (iteration order is not guaranteed) | |
| * | |
| * _.values('hi'); | |
| * // => ['h', 'i'] | |
| */ | |
| function values(object) { | |
| return baseValues(object, keys(object)); | |
| } | |
| /** | |
| * Creates an array of the own and inherited enumerable property values | |
| * of `object`. | |
| * | |
| * **Note:** Non-object values are coerced to objects. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Object | |
| * @param {Object} object The object to query. | |
| * @returns {Array} Returns the array of property values. | |
| * @example | |
| * | |
| * function Foo() { | |
| * this.a = 1; | |
| * this.b = 2; | |
| * } | |
| * | |
| * Foo.prototype.c = 3; | |
| * | |
| * _.valuesIn(new Foo); | |
| * // => [1, 2, 3] (iteration order is not guaranteed) | |
| */ | |
| function valuesIn(object) { | |
| return baseValues(object, keysIn(object)); | |
| } | |
| /*------------------------------------------------------------------------*/ | |
| /** | |
| * Checks if `n` is between `start` and up to but not including, `end`. If | |
| * `end` is not specified it's set to `start` with `start` then set to `0`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Number | |
| * @param {number} n The number to check. | |
| * @param {number} [start=0] The start of the range. | |
| * @param {number} end The end of the range. | |
| * @returns {boolean} Returns `true` if `n` is in the range, else `false`. | |
| * @example | |
| * | |
| * _.inRange(3, 2, 4); | |
| * // => true | |
| * | |
| * _.inRange(4, 8); | |
| * // => true | |
| * | |
| * _.inRange(4, 2); | |
| * // => false | |
| * | |
| * _.inRange(2, 2); | |
| * // => false | |
| * | |
| * _.inRange(1.2, 2); | |
| * // => true | |
| * | |
| * _.inRange(5.2, 4); | |
| * // => false | |
| */ | |
| function inRange(value, start, end) { | |
| start = +start || 0; | |
| if (end === undefined) { | |
| end = start; | |
| start = 0; | |
| } else { | |
| end = +end || 0; | |
| } | |
| return value >= nativeMin(start, end) && value < nativeMax(start, end); | |
| } | |
| /** | |
| * Produces a random number between `min` and `max` (inclusive). If only one | |
| * argument is provided a number between `0` and the given number is returned. | |
| * If `floating` is `true`, or either `min` or `max` are floats, a floating-point | |
| * number is returned instead of an integer. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Number | |
| * @param {number} [min=0] The minimum possible value. | |
| * @param {number} [max=1] The maximum possible value. | |
| * @param {boolean} [floating] Specify returning a floating-point number. | |
| * @returns {number} Returns the random number. | |
| * @example | |
| * | |
| * _.random(0, 5); | |
| * // => an integer between 0 and 5 | |
| * | |
| * _.random(5); | |
| * // => also an integer between 0 and 5 | |
| * | |
| * _.random(5, true); | |
| * // => a floating-point number between 0 and 5 | |
| * | |
| * _.random(1.2, 5.2); | |
| * // => a floating-point number between 1.2 and 5.2 | |
| */ | |
| function random(min, max, floating) { | |
| if (floating && isIterateeCall(min, max, floating)) { | |
| max = floating = undefined; | |
| } | |
| var noMin = min == null, | |
| noMax = max == null; | |
| if (floating == null) { | |
| if (noMax && typeof min == 'boolean') { | |
| floating = min; | |
| min = 1; | |
| } | |
| else if (typeof max == 'boolean') { | |
| floating = max; | |
| noMax = true; | |
| } | |
| } | |
| if (noMin && noMax) { | |
| max = 1; | |
| noMax = false; | |
| } | |
| min = +min || 0; | |
| if (noMax) { | |
| max = min; | |
| min = 0; | |
| } else { | |
| max = +max || 0; | |
| } | |
| if (floating || min % 1 || max % 1) { | |
| var rand = nativeRandom(); | |
| return nativeMin(min + (rand * (max - min + parseFloat('1e-' + ((rand + '').length - 1)))), max); | |
| } | |
| return baseRandom(min, max); | |
| } | |
| /*------------------------------------------------------------------------*/ | |
| /** | |
| * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to convert. | |
| * @returns {string} Returns the camel cased string. | |
| * @example | |
| * | |
| * _.camelCase('Foo Bar'); | |
| * // => 'fooBar' | |
| * | |
| * _.camelCase('--foo-bar'); | |
| * // => 'fooBar' | |
| * | |
| * _.camelCase('__foo_bar__'); | |
| * // => 'fooBar' | |
| */ | |
| var camelCase = createCompounder(function(result, word, index) { | |
| word = word.toLowerCase(); | |
| return result + (index ? (word.charAt(0).toUpperCase() + word.slice(1)) : word); | |
| }); | |
| /** | |
| * Capitalizes the first character of `string`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to capitalize. | |
| * @returns {string} Returns the capitalized string. | |
| * @example | |
| * | |
| * _.capitalize('fred'); | |
| * // => 'Fred' | |
| */ | |
| function capitalize(string) { | |
| string = baseToString(string); | |
| return string && (string.charAt(0).toUpperCase() + string.slice(1)); | |
| } | |
| /** | |
| * Deburrs `string` by converting [latin-1 supplementary letters](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table) | |
| * to basic latin letters and removing [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to deburr. | |
| * @returns {string} Returns the deburred string. | |
| * @example | |
| * | |
| * _.deburr('déjà vu'); | |
| * // => 'deja vu' | |
| */ | |
| function deburr(string) { | |
| string = baseToString(string); | |
| return string && string.replace(reLatin1, deburrLetter).replace(reComboMark, ''); | |
| } | |
| /** | |
| * Checks if `string` ends with the given target string. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to search. | |
| * @param {string} [target] The string to search for. | |
| * @param {number} [position=string.length] The position to search from. | |
| * @returns {boolean} Returns `true` if `string` ends with `target`, else `false`. | |
| * @example | |
| * | |
| * _.endsWith('abc', 'c'); | |
| * // => true | |
| * | |
| * _.endsWith('abc', 'b'); | |
| * // => false | |
| * | |
| * _.endsWith('abc', 'b', 2); | |
| * // => true | |
| */ | |
| function endsWith(string, target, position) { | |
| string = baseToString(string); | |
| target = (target + ''); | |
| var length = string.length; | |
| position = position === undefined | |
| ? length | |
| : nativeMin(position < 0 ? 0 : (+position || 0), length); | |
| position -= target.length; | |
| return position >= 0 && string.indexOf(target, position) == position; | |
| } | |
| /** | |
| * Converts the characters "&", "<", ">", '"', "'", and "\`", in `string` to | |
| * their corresponding HTML entities. | |
| * | |
| * **Note:** No other characters are escaped. To escape additional characters | |
| * use a third-party library like [_he_](https://mths.be/he). | |
| * | |
| * Though the ">" character is escaped for symmetry, characters like | |
| * ">" and "/" don't need escaping in HTML and have no special meaning | |
| * unless they're part of a tag or unquoted attribute value. | |
| * See [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) | |
| * (under "semi-related fun fact") for more details. | |
| * | |
| * Backticks are escaped because in Internet Explorer < 9, they can break out | |
| * of attribute values or HTML comments. See [#59](https://html5sec.org/#59), | |
| * [#102](https://html5sec.org/#102), [#108](https://html5sec.org/#108), and | |
| * [#133](https://html5sec.org/#133) of the [HTML5 Security Cheatsheet](https://html5sec.org/) | |
| * for more details. | |
| * | |
| * When working with HTML you should always [quote attribute values](http://wonko.com/post/html-escaping) | |
| * to reduce XSS vectors. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to escape. | |
| * @returns {string} Returns the escaped string. | |
| * @example | |
| * | |
| * _.escape('fred, barney, & pebbles'); | |
| * // => 'fred, barney, & pebbles' | |
| */ | |
| function escape(string) { | |
| // Reset `lastIndex` because in IE < 9 `String#replace` does not. | |
| string = baseToString(string); | |
| return (string && reHasUnescapedHtml.test(string)) | |
| ? string.replace(reUnescapedHtml, escapeHtmlChar) | |
| : string; | |
| } | |
| /** | |
| * Escapes the `RegExp` special characters "\", "/", "^", "$", ".", "|", "?", | |
| * "*", "+", "(", ")", "[", "]", "{" and "}" in `string`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to escape. | |
| * @returns {string} Returns the escaped string. | |
| * @example | |
| * | |
| * _.escapeRegExp('[lodash](https://lodash.com/)'); | |
| * // => '\[lodash\]\(https:\/\/lodash\.com\/\)' | |
| */ | |
| function escapeRegExp(string) { | |
| string = baseToString(string); | |
| return (string && reHasRegExpChars.test(string)) | |
| ? string.replace(reRegExpChars, escapeRegExpChar) | |
| : (string || '(?:)'); | |
| } | |
| /** | |
| * Converts `string` to [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to convert. | |
| * @returns {string} Returns the kebab cased string. | |
| * @example | |
| * | |
| * _.kebabCase('Foo Bar'); | |
| * // => 'foo-bar' | |
| * | |
| * _.kebabCase('fooBar'); | |
| * // => 'foo-bar' | |
| * | |
| * _.kebabCase('__foo_bar__'); | |
| * // => 'foo-bar' | |
| */ | |
| var kebabCase = createCompounder(function(result, word, index) { | |
| return result + (index ? '-' : '') + word.toLowerCase(); | |
| }); | |
| /** | |
| * Pads `string` on the left and right sides if it's shorter than `length`. | |
| * Padding characters are truncated if they can't be evenly divided by `length`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to pad. | |
| * @param {number} [length=0] The padding length. | |
| * @param {string} [chars=' '] The string used as padding. | |
| * @returns {string} Returns the padded string. | |
| * @example | |
| * | |
| * _.pad('abc', 8); | |
| * // => ' abc ' | |
| * | |
| * _.pad('abc', 8, '_-'); | |
| * // => '_-abc_-_' | |
| * | |
| * _.pad('abc', 3); | |
| * // => 'abc' | |
| */ | |
| function pad(string, length, chars) { | |
| string = baseToString(string); | |
| length = +length; | |
| var strLength = string.length; | |
| if (strLength >= length || !nativeIsFinite(length)) { | |
| return string; | |
| } | |
| var mid = (length - strLength) / 2, | |
| leftLength = nativeFloor(mid), | |
| rightLength = nativeCeil(mid); | |
| chars = createPadding('', rightLength, chars); | |
| return chars.slice(0, leftLength) + string + chars; | |
| } | |
| /** | |
| * Pads `string` on the left side if it's shorter than `length`. Padding | |
| * characters are truncated if they exceed `length`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to pad. | |
| * @param {number} [length=0] The padding length. | |
| * @param {string} [chars=' '] The string used as padding. | |
| * @returns {string} Returns the padded string. | |
| * @example | |
| * | |
| * _.padLeft('abc', 6); | |
| * // => ' abc' | |
| * | |
| * _.padLeft('abc', 6, '_-'); | |
| * // => '_-_abc' | |
| * | |
| * _.padLeft('abc', 3); | |
| * // => 'abc' | |
| */ | |
| var padLeft = createPadDir(); | |
| /** | |
| * Pads `string` on the right side if it's shorter than `length`. Padding | |
| * characters are truncated if they exceed `length`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to pad. | |
| * @param {number} [length=0] The padding length. | |
| * @param {string} [chars=' '] The string used as padding. | |
| * @returns {string} Returns the padded string. | |
| * @example | |
| * | |
| * _.padRight('abc', 6); | |
| * // => 'abc ' | |
| * | |
| * _.padRight('abc', 6, '_-'); | |
| * // => 'abc_-_' | |
| * | |
| * _.padRight('abc', 3); | |
| * // => 'abc' | |
| */ | |
| var padRight = createPadDir(true); | |
| /** | |
| * Converts `string` to an integer of the specified radix. If `radix` is | |
| * `undefined` or `0`, a `radix` of `10` is used unless `value` is a hexadecimal, | |
| * in which case a `radix` of `16` is used. | |
| * | |
| * **Note:** This method aligns with the [ES5 implementation](https://es5.github.io/#E) | |
| * of `parseInt`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} string The string to convert. | |
| * @param {number} [radix] The radix to interpret `value` by. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {number} Returns the converted integer. | |
| * @example | |
| * | |
| * _.parseInt('08'); | |
| * // => 8 | |
| * | |
| * _.map(['6', '08', '10'], _.parseInt); | |
| * // => [6, 8, 10] | |
| */ | |
| function parseInt(string, radix, guard) { | |
| // Firefox < 21 and Opera < 15 follow ES3 for `parseInt`. | |
| // Chrome fails to trim leading <BOM> whitespace characters. | |
| // See https://code.google.com/p/v8/issues/detail?id=3109 for more details. | |
| if (guard ? isIterateeCall(string, radix, guard) : radix == null) { | |
| radix = 0; | |
| } else if (radix) { | |
| radix = +radix; | |
| } | |
| string = trim(string); | |
| return nativeParseInt(string, radix || (reHasHexPrefix.test(string) ? 16 : 10)); | |
| } | |
| /** | |
| * Repeats the given string `n` times. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to repeat. | |
| * @param {number} [n=0] The number of times to repeat the string. | |
| * @returns {string} Returns the repeated string. | |
| * @example | |
| * | |
| * _.repeat('*', 3); | |
| * // => '***' | |
| * | |
| * _.repeat('abc', 2); | |
| * // => 'abcabc' | |
| * | |
| * _.repeat('abc', 0); | |
| * // => '' | |
| */ | |
| function repeat(string, n) { | |
| var result = ''; | |
| string = baseToString(string); | |
| n = +n; | |
| if (n < 1 || !string || !nativeIsFinite(n)) { | |
| return result; | |
| } | |
| // Leverage the exponentiation by squaring algorithm for a faster repeat. | |
| // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details. | |
| do { | |
| if (n % 2) { | |
| result += string; | |
| } | |
| n = nativeFloor(n / 2); | |
| string += string; | |
| } while (n); | |
| return result; | |
| } | |
| /** | |
| * Converts `string` to [snake case](https://en.wikipedia.org/wiki/Snake_case). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to convert. | |
| * @returns {string} Returns the snake cased string. | |
| * @example | |
| * | |
| * _.snakeCase('Foo Bar'); | |
| * // => 'foo_bar' | |
| * | |
| * _.snakeCase('fooBar'); | |
| * // => 'foo_bar' | |
| * | |
| * _.snakeCase('--foo-bar'); | |
| * // => 'foo_bar' | |
| */ | |
| var snakeCase = createCompounder(function(result, word, index) { | |
| return result + (index ? '_' : '') + word.toLowerCase(); | |
| }); | |
| /** | |
| * Converts `string` to [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to convert. | |
| * @returns {string} Returns the start cased string. | |
| * @example | |
| * | |
| * _.startCase('--foo-bar'); | |
| * // => 'Foo Bar' | |
| * | |
| * _.startCase('fooBar'); | |
| * // => 'Foo Bar' | |
| * | |
| * _.startCase('__foo_bar__'); | |
| * // => 'Foo Bar' | |
| */ | |
| var startCase = createCompounder(function(result, word, index) { | |
| return result + (index ? ' ' : '') + (word.charAt(0).toUpperCase() + word.slice(1)); | |
| }); | |
| /** | |
| * Checks if `string` starts with the given target string. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to search. | |
| * @param {string} [target] The string to search for. | |
| * @param {number} [position=0] The position to search from. | |
| * @returns {boolean} Returns `true` if `string` starts with `target`, else `false`. | |
| * @example | |
| * | |
| * _.startsWith('abc', 'a'); | |
| * // => true | |
| * | |
| * _.startsWith('abc', 'b'); | |
| * // => false | |
| * | |
| * _.startsWith('abc', 'b', 1); | |
| * // => true | |
| */ | |
| function startsWith(string, target, position) { | |
| string = baseToString(string); | |
| position = position == null | |
| ? 0 | |
| : nativeMin(position < 0 ? 0 : (+position || 0), string.length); | |
| return string.lastIndexOf(target, position) == position; | |
| } | |
| /** | |
| * Creates a compiled template function that can interpolate data properties | |
| * in "interpolate" delimiters, HTML-escape interpolated data properties in | |
| * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data | |
| * properties may be accessed as free variables in the template. If a setting | |
| * object is provided it takes precedence over `_.templateSettings` values. | |
| * | |
| * **Note:** In the development build `_.template` utilizes | |
| * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl) | |
| * for easier debugging. | |
| * | |
| * For more information on precompiling templates see | |
| * [lodash's custom builds documentation](https://lodash.com/custom-builds). | |
| * | |
| * For more information on Chrome extension sandboxes see | |
| * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The template string. | |
| * @param {Object} [options] The options object. | |
| * @param {RegExp} [options.escape] The HTML "escape" delimiter. | |
| * @param {RegExp} [options.evaluate] The "evaluate" delimiter. | |
| * @param {Object} [options.imports] An object to import into the template as free variables. | |
| * @param {RegExp} [options.interpolate] The "interpolate" delimiter. | |
| * @param {string} [options.sourceURL] The sourceURL of the template's compiled source. | |
| * @param {string} [options.variable] The data object variable name. | |
| * @param- {Object} [otherOptions] Enables the legacy `options` param signature. | |
| * @returns {Function} Returns the compiled template function. | |
| * @example | |
| * | |
| * // using the "interpolate" delimiter to create a compiled template | |
| * var compiled = _.template('hello <%= user %>!'); | |
| * compiled({ 'user': 'fred' }); | |
| * // => 'hello fred!' | |
| * | |
| * // using the HTML "escape" delimiter to escape data property values | |
| * var compiled = _.template('<b><%- value %></b>'); | |
| * compiled({ 'value': '<script>' }); | |
| * // => '<b><script></b>' | |
| * | |
| * // using the "evaluate" delimiter to execute JavaScript and generate HTML | |
| * var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>'); | |
| * compiled({ 'users': ['fred', 'barney'] }); | |
| * // => '<li>fred</li><li>barney</li>' | |
| * | |
| * // using the internal `print` function in "evaluate" delimiters | |
| * var compiled = _.template('<% print("hello " + user); %>!'); | |
| * compiled({ 'user': 'barney' }); | |
| * // => 'hello barney!' | |
| * | |
| * // using the ES delimiter as an alternative to the default "interpolate" delimiter | |
| * var compiled = _.template('hello ${ user }!'); | |
| * compiled({ 'user': 'pebbles' }); | |
| * // => 'hello pebbles!' | |
| * | |
| * // using custom template delimiters | |
| * _.templateSettings.interpolate = /{{([\s\S]+?)}}/g; | |
| * var compiled = _.template('hello {{ user }}!'); | |
| * compiled({ 'user': 'mustache' }); | |
| * // => 'hello mustache!' | |
| * | |
| * // using backslashes to treat delimiters as plain text | |
| * var compiled = _.template('<%= "\\<%- value %\\>" %>'); | |
| * compiled({ 'value': 'ignored' }); | |
| * // => '<%- value %>' | |
| * | |
| * // using the `imports` option to import `jQuery` as `jq` | |
| * var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>'; | |
| * var compiled = _.template(text, { 'imports': { 'jq': jQuery } }); | |
| * compiled({ 'users': ['fred', 'barney'] }); | |
| * // => '<li>fred</li><li>barney</li>' | |
| * | |
| * // using the `sourceURL` option to specify a custom sourceURL for the template | |
| * var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' }); | |
| * compiled(data); | |
| * // => find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector | |
| * | |
| * // using the `variable` option to ensure a with-statement isn't used in the compiled template | |
| * var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' }); | |
| * compiled.source; | |
| * // => function(data) { | |
| * // var __t, __p = ''; | |
| * // __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!'; | |
| * // return __p; | |
| * // } | |
| * | |
| * // using the `source` property to inline compiled templates for meaningful | |
| * // line numbers in error messages and a stack trace | |
| * fs.writeFileSync(path.join(cwd, 'jst.js'), '\ | |
| * var JST = {\ | |
| * "main": ' + _.template(mainText).source + '\ | |
| * };\ | |
| * '); | |
| */ | |
| function template(string, options, otherOptions) { | |
| // Based on John Resig's `tmpl` implementation (http://ejohn.org/blog/javascript-micro-templating/) | |
| // and Laura Doktorova's doT.js (https://github.com/olado/doT). | |
| var settings = lodash.templateSettings; | |
| if (otherOptions && isIterateeCall(string, options, otherOptions)) { | |
| options = otherOptions = undefined; | |
| } | |
| string = baseToString(string); | |
| options = assignWith(baseAssign({}, otherOptions || options), settings, assignOwnDefaults); | |
| var imports = assignWith(baseAssign({}, options.imports), settings.imports, assignOwnDefaults), | |
| importsKeys = keys(imports), | |
| importsValues = baseValues(imports, importsKeys); | |
| var isEscaping, | |
| isEvaluating, | |
| index = 0, | |
| interpolate = options.interpolate || reNoMatch, | |
| source = "__p += '"; | |
| // Compile the regexp to match each delimiter. | |
| var reDelimiters = RegExp( | |
| (options.escape || reNoMatch).source + '|' + | |
| interpolate.source + '|' + | |
| (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' + | |
| (options.evaluate || reNoMatch).source + '|$' | |
| , 'g'); | |
| // Use a sourceURL for easier debugging. | |
| var sourceURL = '//# sourceURL=' + | |
| ('sourceURL' in options | |
| ? options.sourceURL | |
| : ('lodash.templateSources[' + (++templateCounter) + ']') | |
| ) + '\n'; | |
| string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) { | |
| interpolateValue || (interpolateValue = esTemplateValue); | |
| // Escape characters that can't be included in string literals. | |
| source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar); | |
| // Replace delimiters with snippets. | |
| if (escapeValue) { | |
| isEscaping = true; | |
| source += "' +\n__e(" + escapeValue + ") +\n'"; | |
| } | |
| if (evaluateValue) { | |
| isEvaluating = true; | |
| source += "';\n" + evaluateValue + ";\n__p += '"; | |
| } | |
| if (interpolateValue) { | |
| source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'"; | |
| } | |
| index = offset + match.length; | |
| // The JS engine embedded in Adobe products requires returning the `match` | |
| // string in order to produce the correct `offset` value. | |
| return match; | |
| }); | |
| source += "';\n"; | |
| // If `variable` is not specified wrap a with-statement around the generated | |
| // code to add the data object to the top of the scope chain. | |
| var variable = options.variable; | |
| if (!variable) { | |
| source = 'with (obj) {\n' + source + '\n}\n'; | |
| } | |
| // Cleanup code by stripping empty strings. | |
| source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source) | |
| .replace(reEmptyStringMiddle, '$1') | |
| .replace(reEmptyStringTrailing, '$1;'); | |
| // Frame code as the function body. | |
| source = 'function(' + (variable || 'obj') + ') {\n' + | |
| (variable | |
| ? '' | |
| : 'obj || (obj = {});\n' | |
| ) + | |
| "var __t, __p = ''" + | |
| (isEscaping | |
| ? ', __e = _.escape' | |
| : '' | |
| ) + | |
| (isEvaluating | |
| ? ', __j = Array.prototype.join;\n' + | |
| "function print() { __p += __j.call(arguments, '') }\n" | |
| : ';\n' | |
| ) + | |
| source + | |
| 'return __p\n}'; | |
| var result = attempt(function() { | |
| return Function(importsKeys, sourceURL + 'return ' + source).apply(undefined, importsValues); | |
| }); | |
| // Provide the compiled function's source by its `toString` method or | |
| // the `source` property as a convenience for inlining compiled templates. | |
| result.source = source; | |
| if (isError(result)) { | |
| throw result; | |
| } | |
| return result; | |
| } | |
| /** | |
| * Removes leading and trailing whitespace or specified characters from `string`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to trim. | |
| * @param {string} [chars=whitespace] The characters to trim. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {string} Returns the trimmed string. | |
| * @example | |
| * | |
| * _.trim(' abc '); | |
| * // => 'abc' | |
| * | |
| * _.trim('-_-abc-_-', '_-'); | |
| * // => 'abc' | |
| * | |
| * _.map([' foo ', ' bar '], _.trim); | |
| * // => ['foo', 'bar'] | |
| */ | |
| function trim(string, chars, guard) { | |
| var value = string; | |
| string = baseToString(string); | |
| if (!string) { | |
| return string; | |
| } | |
| if (guard ? isIterateeCall(value, chars, guard) : chars == null) { | |
| return string.slice(trimmedLeftIndex(string), trimmedRightIndex(string) + 1); | |
| } | |
| chars = (chars + ''); | |
| return string.slice(charsLeftIndex(string, chars), charsRightIndex(string, chars) + 1); | |
| } | |
| /** | |
| * Removes leading whitespace or specified characters from `string`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to trim. | |
| * @param {string} [chars=whitespace] The characters to trim. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {string} Returns the trimmed string. | |
| * @example | |
| * | |
| * _.trimLeft(' abc '); | |
| * // => 'abc ' | |
| * | |
| * _.trimLeft('-_-abc-_-', '_-'); | |
| * // => 'abc-_-' | |
| */ | |
| function trimLeft(string, chars, guard) { | |
| var value = string; | |
| string = baseToString(string); | |
| if (!string) { | |
| return string; | |
| } | |
| if (guard ? isIterateeCall(value, chars, guard) : chars == null) { | |
| return string.slice(trimmedLeftIndex(string)); | |
| } | |
| return string.slice(charsLeftIndex(string, (chars + ''))); | |
| } | |
| /** | |
| * Removes trailing whitespace or specified characters from `string`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to trim. | |
| * @param {string} [chars=whitespace] The characters to trim. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {string} Returns the trimmed string. | |
| * @example | |
| * | |
| * _.trimRight(' abc '); | |
| * // => ' abc' | |
| * | |
| * _.trimRight('-_-abc-_-', '_-'); | |
| * // => '-_-abc' | |
| */ | |
| function trimRight(string, chars, guard) { | |
| var value = string; | |
| string = baseToString(string); | |
| if (!string) { | |
| return string; | |
| } | |
| if (guard ? isIterateeCall(value, chars, guard) : chars == null) { | |
| return string.slice(0, trimmedRightIndex(string) + 1); | |
| } | |
| return string.slice(0, charsRightIndex(string, (chars + '')) + 1); | |
| } | |
| /** | |
| * Truncates `string` if it's longer than the given maximum string length. | |
| * The last characters of the truncated string are replaced with the omission | |
| * string which defaults to "...". | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to truncate. | |
| * @param {Object|number} [options] The options object or maximum string length. | |
| * @param {number} [options.length=30] The maximum string length. | |
| * @param {string} [options.omission='...'] The string to indicate text is omitted. | |
| * @param {RegExp|string} [options.separator] The separator pattern to truncate to. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {string} Returns the truncated string. | |
| * @example | |
| * | |
| * _.trunc('hi-diddly-ho there, neighborino'); | |
| * // => 'hi-diddly-ho there, neighbo...' | |
| * | |
| * _.trunc('hi-diddly-ho there, neighborino', 24); | |
| * // => 'hi-diddly-ho there, n...' | |
| * | |
| * _.trunc('hi-diddly-ho there, neighborino', { | |
| * 'length': 24, | |
| * 'separator': ' ' | |
| * }); | |
| * // => 'hi-diddly-ho there,...' | |
| * | |
| * _.trunc('hi-diddly-ho there, neighborino', { | |
| * 'length': 24, | |
| * 'separator': /,? +/ | |
| * }); | |
| * // => 'hi-diddly-ho there...' | |
| * | |
| * _.trunc('hi-diddly-ho there, neighborino', { | |
| * 'omission': ' [...]' | |
| * }); | |
| * // => 'hi-diddly-ho there, neig [...]' | |
| */ | |
| function trunc(string, options, guard) { | |
| if (guard && isIterateeCall(string, options, guard)) { | |
| options = undefined; | |
| } | |
| var length = DEFAULT_TRUNC_LENGTH, | |
| omission = DEFAULT_TRUNC_OMISSION; | |
| if (options != null) { | |
| if (isObject(options)) { | |
| var separator = 'separator' in options ? options.separator : separator; | |
| length = 'length' in options ? (+options.length || 0) : length; | |
| omission = 'omission' in options ? baseToString(options.omission) : omission; | |
| } else { | |
| length = +options || 0; | |
| } | |
| } | |
| string = baseToString(string); | |
| if (length >= string.length) { | |
| return string; | |
| } | |
| var end = length - omission.length; | |
| if (end < 1) { | |
| return omission; | |
| } | |
| var result = string.slice(0, end); | |
| if (separator == null) { | |
| return result + omission; | |
| } | |
| if (isRegExp(separator)) { | |
| if (string.slice(end).search(separator)) { | |
| var match, | |
| newEnd, | |
| substring = string.slice(0, end); | |
| if (!separator.global) { | |
| separator = RegExp(separator.source, (reFlags.exec(separator) || '') + 'g'); | |
| } | |
| separator.lastIndex = 0; | |
| while ((match = separator.exec(substring))) { | |
| newEnd = match.index; | |
| } | |
| result = result.slice(0, newEnd == null ? end : newEnd); | |
| } | |
| } else if (string.indexOf(separator, end) != end) { | |
| var index = result.lastIndexOf(separator); | |
| if (index > -1) { | |
| result = result.slice(0, index); | |
| } | |
| } | |
| return result + omission; | |
| } | |
| /** | |
| * The inverse of `_.escape`; this method converts the HTML entities | |
| * `&`, `<`, `>`, `"`, `'`, and ``` in `string` to their | |
| * corresponding characters. | |
| * | |
| * **Note:** No other HTML entities are unescaped. To unescape additional HTML | |
| * entities use a third-party library like [_he_](https://mths.be/he). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to unescape. | |
| * @returns {string} Returns the unescaped string. | |
| * @example | |
| * | |
| * _.unescape('fred, barney, & pebbles'); | |
| * // => 'fred, barney, & pebbles' | |
| */ | |
| function unescape(string) { | |
| string = baseToString(string); | |
| return (string && reHasEscapedHtml.test(string)) | |
| ? string.replace(reEscapedHtml, unescapeHtmlChar) | |
| : string; | |
| } | |
| /** | |
| * Splits `string` into an array of its words. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category String | |
| * @param {string} [string=''] The string to inspect. | |
| * @param {RegExp|string} [pattern] The pattern to match words. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {Array} Returns the words of `string`. | |
| * @example | |
| * | |
| * _.words('fred, barney, & pebbles'); | |
| * // => ['fred', 'barney', 'pebbles'] | |
| * | |
| * _.words('fred, barney, & pebbles', /[^, ]+/g); | |
| * // => ['fred', 'barney', '&', 'pebbles'] | |
| */ | |
| function words(string, pattern, guard) { | |
| if (guard && isIterateeCall(string, pattern, guard)) { | |
| pattern = undefined; | |
| } | |
| string = baseToString(string); | |
| return string.match(pattern || reWords) || []; | |
| } | |
| /*------------------------------------------------------------------------*/ | |
| /** | |
| * Attempts to invoke `func`, returning either the result or the caught error | |
| * object. Any additional arguments are provided to `func` when it's invoked. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Utility | |
| * @param {Function} func The function to attempt. | |
| * @returns {*} Returns the `func` result or error object. | |
| * @example | |
| * | |
| * // avoid throwing errors for invalid selectors | |
| * var elements = _.attempt(function(selector) { | |
| * return document.querySelectorAll(selector); | |
| * }, '>_>'); | |
| * | |
| * if (_.isError(elements)) { | |
| * elements = []; | |
| * } | |
| */ | |
| var attempt = restParam(function(func, args) { | |
| try { | |
| return func.apply(undefined, args); | |
| } catch(e) { | |
| return isError(e) ? e : new Error(e); | |
| } | |
| }); | |
| /** | |
| * Creates a function that invokes `func` with the `this` binding of `thisArg` | |
| * and arguments of the created function. If `func` is a property name the | |
| * created callback returns the property value for a given element. If `func` | |
| * is an object the created callback returns `true` for elements that contain | |
| * the equivalent object properties, otherwise it returns `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @alias iteratee | |
| * @category Utility | |
| * @param {*} [func=_.identity] The value to convert to a callback. | |
| * @param {*} [thisArg] The `this` binding of `func`. | |
| * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. | |
| * @returns {Function} Returns the callback. | |
| * @example | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'age': 36 }, | |
| * { 'user': 'fred', 'age': 40 } | |
| * ]; | |
| * | |
| * // wrap to create custom callback shorthands | |
| * _.callback = _.wrap(_.callback, function(callback, func, thisArg) { | |
| * var match = /^(.+?)__([gl]t)(.+)$/.exec(func); | |
| * if (!match) { | |
| * return callback(func, thisArg); | |
| * } | |
| * return function(object) { | |
| * return match[2] == 'gt' | |
| * ? object[match[1]] > match[3] | |
| * : object[match[1]] < match[3]; | |
| * }; | |
| * }); | |
| * | |
| * _.filter(users, 'age__gt36'); | |
| * // => [{ 'user': 'fred', 'age': 40 }] | |
| */ | |
| function callback(func, thisArg, guard) { | |
| if (guard && isIterateeCall(func, thisArg, guard)) { | |
| thisArg = undefined; | |
| } | |
| return isObjectLike(func) | |
| ? matches(func) | |
| : baseCallback(func, thisArg); | |
| } | |
| /** | |
| * Creates a function that returns `value`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Utility | |
| * @param {*} value The value to return from the new function. | |
| * @returns {Function} Returns the new function. | |
| * @example | |
| * | |
| * var object = { 'user': 'fred' }; | |
| * var getter = _.constant(object); | |
| * | |
| * getter() === object; | |
| * // => true | |
| */ | |
| function constant(value) { | |
| return function() { | |
| return value; | |
| }; | |
| } | |
| /** | |
| * This method returns the first argument provided to it. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Utility | |
| * @param {*} value Any value. | |
| * @returns {*} Returns `value`. | |
| * @example | |
| * | |
| * var object = { 'user': 'fred' }; | |
| * | |
| * _.identity(object) === object; | |
| * // => true | |
| */ | |
| function identity(value) { | |
| return value; | |
| } | |
| /** | |
| * Creates a function that performs a deep comparison between a given object | |
| * and `source`, returning `true` if the given object has equivalent property | |
| * values, else `false`. | |
| * | |
| * **Note:** This method supports comparing arrays, booleans, `Date` objects, | |
| * numbers, `Object` objects, regexes, and strings. Objects are compared by | |
| * their own, not inherited, enumerable properties. For comparing a single | |
| * own or inherited property value see `_.matchesProperty`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Utility | |
| * @param {Object} source The object of property values to match. | |
| * @returns {Function} Returns the new function. | |
| * @example | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'age': 36, 'active': true }, | |
| * { 'user': 'fred', 'age': 40, 'active': false } | |
| * ]; | |
| * | |
| * _.filter(users, _.matches({ 'age': 40, 'active': false })); | |
| * // => [{ 'user': 'fred', 'age': 40, 'active': false }] | |
| */ | |
| function matches(source) { | |
| return baseMatches(baseClone(source, true)); | |
| } | |
| /** | |
| * Creates a function that compares the property value of `path` on a given | |
| * object to `value`. | |
| * | |
| * **Note:** This method supports comparing arrays, booleans, `Date` objects, | |
| * numbers, `Object` objects, regexes, and strings. Objects are compared by | |
| * their own, not inherited, enumerable properties. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Utility | |
| * @param {Array|string} path The path of the property to get. | |
| * @param {*} srcValue The value to match. | |
| * @returns {Function} Returns the new function. | |
| * @example | |
| * | |
| * var users = [ | |
| * { 'user': 'barney' }, | |
| * { 'user': 'fred' } | |
| * ]; | |
| * | |
| * _.find(users, _.matchesProperty('user', 'fred')); | |
| * // => { 'user': 'fred' } | |
| */ | |
| function matchesProperty(path, srcValue) { | |
| return baseMatchesProperty(path, baseClone(srcValue, true)); | |
| } | |
| /** | |
| * Creates a function that invokes the method at `path` on a given object. | |
| * Any additional arguments are provided to the invoked method. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Utility | |
| * @param {Array|string} path The path of the method to invoke. | |
| * @param {...*} [args] The arguments to invoke the method with. | |
| * @returns {Function} Returns the new function. | |
| * @example | |
| * | |
| * var objects = [ | |
| * { 'a': { 'b': { 'c': _.constant(2) } } }, | |
| * { 'a': { 'b': { 'c': _.constant(1) } } } | |
| * ]; | |
| * | |
| * _.map(objects, _.method('a.b.c')); | |
| * // => [2, 1] | |
| * | |
| * _.invoke(_.sortBy(objects, _.method(['a', 'b', 'c'])), 'a.b.c'); | |
| * // => [1, 2] | |
| */ | |
| var method = restParam(function(path, args) { | |
| return function(object) { | |
| return invokePath(object, path, args); | |
| }; | |
| }); | |
| /** | |
| * The opposite of `_.method`; this method creates a function that invokes | |
| * the method at a given path on `object`. Any additional arguments are | |
| * provided to the invoked method. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Utility | |
| * @param {Object} object The object to query. | |
| * @param {...*} [args] The arguments to invoke the method with. | |
| * @returns {Function} Returns the new function. | |
| * @example | |
| * | |
| * var array = _.times(3, _.constant), | |
| * object = { 'a': array, 'b': array, 'c': array }; | |
| * | |
| * _.map(['a[2]', 'c[0]'], _.methodOf(object)); | |
| * // => [2, 0] | |
| * | |
| * _.map([['a', '2'], ['c', '0']], _.methodOf(object)); | |
| * // => [2, 0] | |
| */ | |
| var methodOf = restParam(function(object, args) { | |
| return function(path) { | |
| return invokePath(object, path, args); | |
| }; | |
| }); | |
| /** | |
| * Adds all own enumerable function properties of a source object to the | |
| * destination object. If `object` is a function then methods are added to | |
| * its prototype as well. | |
| * | |
| * **Note:** Use `_.runInContext` to create a pristine `lodash` function to | |
| * avoid conflicts caused by modifying the original. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Utility | |
| * @param {Function|Object} [object=lodash] The destination object. | |
| * @param {Object} source The object of functions to add. | |
| * @param {Object} [options] The options object. | |
| * @param {boolean} [options.chain=true] Specify whether the functions added | |
| * are chainable. | |
| * @returns {Function|Object} Returns `object`. | |
| * @example | |
| * | |
| * function vowels(string) { | |
| * return _.filter(string, function(v) { | |
| * return /[aeiou]/i.test(v); | |
| * }); | |
| * } | |
| * | |
| * _.mixin({ 'vowels': vowels }); | |
| * _.vowels('fred'); | |
| * // => ['e'] | |
| * | |
| * _('fred').vowels().value(); | |
| * // => ['e'] | |
| * | |
| * _.mixin({ 'vowels': vowels }, { 'chain': false }); | |
| * _('fred').vowels(); | |
| * // => ['e'] | |
| */ | |
| function mixin(object, source, options) { | |
| if (options == null) { | |
| var isObj = isObject(source), | |
| props = isObj ? keys(source) : undefined, | |
| methodNames = (props && props.length) ? baseFunctions(source, props) : undefined; | |
| if (!(methodNames ? methodNames.length : isObj)) { | |
| methodNames = false; | |
| options = source; | |
| source = object; | |
| object = this; | |
| } | |
| } | |
| if (!methodNames) { | |
| methodNames = baseFunctions(source, keys(source)); | |
| } | |
| var chain = true, | |
| index = -1, | |
| isFunc = isFunction(object), | |
| length = methodNames.length; | |
| if (options === false) { | |
| chain = false; | |
| } else if (isObject(options) && 'chain' in options) { | |
| chain = options.chain; | |
| } | |
| while (++index < length) { | |
| var methodName = methodNames[index], | |
| func = source[methodName]; | |
| object[methodName] = func; | |
| if (isFunc) { | |
| object.prototype[methodName] = (function(func) { | |
| return function() { | |
| var chainAll = this.__chain__; | |
| if (chain || chainAll) { | |
| var result = object(this.__wrapped__), | |
| actions = result.__actions__ = arrayCopy(this.__actions__); | |
| actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); | |
| result.__chain__ = chainAll; | |
| return result; | |
| } | |
| return func.apply(object, arrayPush([this.value()], arguments)); | |
| }; | |
| }(func)); | |
| } | |
| } | |
| return object; | |
| } | |
| /** | |
| * Reverts the `_` variable to its previous value and returns a reference to | |
| * the `lodash` function. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Utility | |
| * @returns {Function} Returns the `lodash` function. | |
| * @example | |
| * | |
| * var lodash = _.noConflict(); | |
| */ | |
| function noConflict() { | |
| root._ = oldDash; | |
| return this; | |
| } | |
| /** | |
| * A no-operation function that returns `undefined` regardless of the | |
| * arguments it receives. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Utility | |
| * @example | |
| * | |
| * var object = { 'user': 'fred' }; | |
| * | |
| * _.noop(object) === undefined; | |
| * // => true | |
| */ | |
| function noop() { | |
| // No operation performed. | |
| } | |
| /** | |
| * Creates a function that returns the property value at `path` on a | |
| * given object. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Utility | |
| * @param {Array|string} path The path of the property to get. | |
| * @returns {Function} Returns the new function. | |
| * @example | |
| * | |
| * var objects = [ | |
| * { 'a': { 'b': { 'c': 2 } } }, | |
| * { 'a': { 'b': { 'c': 1 } } } | |
| * ]; | |
| * | |
| * _.map(objects, _.property('a.b.c')); | |
| * // => [2, 1] | |
| * | |
| * _.pluck(_.sortBy(objects, _.property(['a', 'b', 'c'])), 'a.b.c'); | |
| * // => [1, 2] | |
| */ | |
| function property(path) { | |
| return isKey(path) ? baseProperty(path) : basePropertyDeep(path); | |
| } | |
| /** | |
| * The opposite of `_.property`; this method creates a function that returns | |
| * the property value at a given path on `object`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Utility | |
| * @param {Object} object The object to query. | |
| * @returns {Function} Returns the new function. | |
| * @example | |
| * | |
| * var array = [0, 1, 2], | |
| * object = { 'a': array, 'b': array, 'c': array }; | |
| * | |
| * _.map(['a[2]', 'c[0]'], _.propertyOf(object)); | |
| * // => [2, 0] | |
| * | |
| * _.map([['a', '2'], ['c', '0']], _.propertyOf(object)); | |
| * // => [2, 0] | |
| */ | |
| function propertyOf(object) { | |
| return function(path) { | |
| return baseGet(object, toPath(path), (path + '')); | |
| }; | |
| } | |
| /** | |
| * Creates an array of numbers (positive and/or negative) progressing from | |
| * `start` up to, but not including, `end`. If `end` is not specified it's | |
| * set to `start` with `start` then set to `0`. If `end` is less than `start` | |
| * a zero-length range is created unless a negative `step` is specified. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Utility | |
| * @param {number} [start=0] The start of the range. | |
| * @param {number} end The end of the range. | |
| * @param {number} [step=1] The value to increment or decrement by. | |
| * @returns {Array} Returns the new array of numbers. | |
| * @example | |
| * | |
| * _.range(4); | |
| * // => [0, 1, 2, 3] | |
| * | |
| * _.range(1, 5); | |
| * // => [1, 2, 3, 4] | |
| * | |
| * _.range(0, 20, 5); | |
| * // => [0, 5, 10, 15] | |
| * | |
| * _.range(0, -4, -1); | |
| * // => [0, -1, -2, -3] | |
| * | |
| * _.range(1, 4, 0); | |
| * // => [1, 1, 1] | |
| * | |
| * _.range(0); | |
| * // => [] | |
| */ | |
| function range(start, end, step) { | |
| if (step && isIterateeCall(start, end, step)) { | |
| end = step = undefined; | |
| } | |
| start = +start || 0; | |
| step = step == null ? 1 : (+step || 0); | |
| if (end == null) { | |
| end = start; | |
| start = 0; | |
| } else { | |
| end = +end || 0; | |
| } | |
| // Use `Array(length)` so engines like Chakra and V8 avoid slower modes. | |
| // See https://youtu.be/XAqIpGU8ZZk#t=17m25s for more details. | |
| var index = -1, | |
| length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), | |
| result = Array(length); | |
| while (++index < length) { | |
| result[index] = start; | |
| start += step; | |
| } | |
| return result; | |
| } | |
| /** | |
| * Invokes the iteratee function `n` times, returning an array of the results | |
| * of each invocation. The `iteratee` is bound to `thisArg` and invoked with | |
| * one argument; (index). | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Utility | |
| * @param {number} n The number of times to invoke `iteratee`. | |
| * @param {Function} [iteratee=_.identity] The function invoked per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {Array} Returns the array of results. | |
| * @example | |
| * | |
| * var diceRolls = _.times(3, _.partial(_.random, 1, 6, false)); | |
| * // => [3, 6, 4] | |
| * | |
| * _.times(3, function(n) { | |
| * mage.castSpell(n); | |
| * }); | |
| * // => invokes `mage.castSpell(n)` three times with `n` of `0`, `1`, and `2` | |
| * | |
| * _.times(3, function(n) { | |
| * this.cast(n); | |
| * }, mage); | |
| * // => also invokes `mage.castSpell(n)` three times | |
| */ | |
| function times(n, iteratee, thisArg) { | |
| n = nativeFloor(n); | |
| // Exit early to avoid a JSC JIT bug in Safari 8 | |
| // where `Array(0)` is treated as `Array(1)`. | |
| if (n < 1 || !nativeIsFinite(n)) { | |
| return []; | |
| } | |
| var index = -1, | |
| result = Array(nativeMin(n, MAX_ARRAY_LENGTH)); | |
| iteratee = bindCallback(iteratee, thisArg, 1); | |
| while (++index < n) { | |
| if (index < MAX_ARRAY_LENGTH) { | |
| result[index] = iteratee(index); | |
| } else { | |
| iteratee(index); | |
| } | |
| } | |
| return result; | |
| } | |
| /** | |
| * Generates a unique ID. If `prefix` is provided the ID is appended to it. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Utility | |
| * @param {string} [prefix] The value to prefix the ID with. | |
| * @returns {string} Returns the unique ID. | |
| * @example | |
| * | |
| * _.uniqueId('contact_'); | |
| * // => 'contact_104' | |
| * | |
| * _.uniqueId(); | |
| * // => '105' | |
| */ | |
| function uniqueId(prefix) { | |
| var id = ++idCounter; | |
| return baseToString(prefix) + id; | |
| } | |
| /*------------------------------------------------------------------------*/ | |
| /** | |
| * Adds two numbers. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Math | |
| * @param {number} augend The first number to add. | |
| * @param {number} addend The second number to add. | |
| * @returns {number} Returns the sum. | |
| * @example | |
| * | |
| * _.add(6, 4); | |
| * // => 10 | |
| */ | |
| function add(augend, addend) { | |
| return (+augend || 0) + (+addend || 0); | |
| } | |
| /** | |
| * Calculates `n` rounded up to `precision`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Math | |
| * @param {number} n The number to round up. | |
| * @param {number} [precision=0] The precision to round up to. | |
| * @returns {number} Returns the rounded up number. | |
| * @example | |
| * | |
| * _.ceil(4.006); | |
| * // => 5 | |
| * | |
| * _.ceil(6.004, 2); | |
| * // => 6.01 | |
| * | |
| * _.ceil(6040, -2); | |
| * // => 6100 | |
| */ | |
| var ceil = createRound('ceil'); | |
| /** | |
| * Calculates `n` rounded down to `precision`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Math | |
| * @param {number} n The number to round down. | |
| * @param {number} [precision=0] The precision to round down to. | |
| * @returns {number} Returns the rounded down number. | |
| * @example | |
| * | |
| * _.floor(4.006); | |
| * // => 4 | |
| * | |
| * _.floor(0.046, 2); | |
| * // => 0.04 | |
| * | |
| * _.floor(4060, -2); | |
| * // => 4000 | |
| */ | |
| var floor = createRound('floor'); | |
| /** | |
| * Gets the maximum value of `collection`. If `collection` is empty or falsey | |
| * `-Infinity` is returned. If an iteratee function is provided it's invoked | |
| * for each value in `collection` to generate the criterion by which the value | |
| * is ranked. The `iteratee` is bound to `thisArg` and invoked with three | |
| * arguments: (value, index, collection). | |
| * | |
| * If a property name is provided for `iteratee` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `iteratee` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Math | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function|Object|string} [iteratee] The function invoked per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {*} Returns the maximum value. | |
| * @example | |
| * | |
| * _.max([4, 2, 8, 6]); | |
| * // => 8 | |
| * | |
| * _.max([]); | |
| * // => -Infinity | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'age': 36 }, | |
| * { 'user': 'fred', 'age': 40 } | |
| * ]; | |
| * | |
| * _.max(users, function(chr) { | |
| * return chr.age; | |
| * }); | |
| * // => { 'user': 'fred', 'age': 40 } | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.max(users, 'age'); | |
| * // => { 'user': 'fred', 'age': 40 } | |
| */ | |
| var max = createExtremum(gt, NEGATIVE_INFINITY); | |
| /** | |
| * Gets the minimum value of `collection`. If `collection` is empty or falsey | |
| * `Infinity` is returned. If an iteratee function is provided it's invoked | |
| * for each value in `collection` to generate the criterion by which the value | |
| * is ranked. The `iteratee` is bound to `thisArg` and invoked with three | |
| * arguments: (value, index, collection). | |
| * | |
| * If a property name is provided for `iteratee` the created `_.property` | |
| * style callback returns the property value of the given element. | |
| * | |
| * If a value is also provided for `thisArg` the created `_.matchesProperty` | |
| * style callback returns `true` for elements that have a matching property | |
| * value, else `false`. | |
| * | |
| * If an object is provided for `iteratee` the created `_.matches` style | |
| * callback returns `true` for elements that have the properties of the given | |
| * object, else `false`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Math | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function|Object|string} [iteratee] The function invoked per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {*} Returns the minimum value. | |
| * @example | |
| * | |
| * _.min([4, 2, 8, 6]); | |
| * // => 2 | |
| * | |
| * _.min([]); | |
| * // => Infinity | |
| * | |
| * var users = [ | |
| * { 'user': 'barney', 'age': 36 }, | |
| * { 'user': 'fred', 'age': 40 } | |
| * ]; | |
| * | |
| * _.min(users, function(chr) { | |
| * return chr.age; | |
| * }); | |
| * // => { 'user': 'barney', 'age': 36 } | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.min(users, 'age'); | |
| * // => { 'user': 'barney', 'age': 36 } | |
| */ | |
| var min = createExtremum(lt, POSITIVE_INFINITY); | |
| /** | |
| * Calculates `n` rounded to `precision`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Math | |
| * @param {number} n The number to round. | |
| * @param {number} [precision=0] The precision to round to. | |
| * @returns {number} Returns the rounded number. | |
| * @example | |
| * | |
| * _.round(4.006); | |
| * // => 4 | |
| * | |
| * _.round(4.006, 2); | |
| * // => 4.01 | |
| * | |
| * _.round(4060, -2); | |
| * // => 4100 | |
| */ | |
| var round = createRound('round'); | |
| /** | |
| * Gets the sum of the values in `collection`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @category Math | |
| * @param {Array|Object|string} collection The collection to iterate over. | |
| * @param {Function|Object|string} [iteratee] The function invoked per iteration. | |
| * @param {*} [thisArg] The `this` binding of `iteratee`. | |
| * @returns {number} Returns the sum. | |
| * @example | |
| * | |
| * _.sum([4, 6]); | |
| * // => 10 | |
| * | |
| * _.sum({ 'a': 4, 'b': 6 }); | |
| * // => 10 | |
| * | |
| * var objects = [ | |
| * { 'n': 4 }, | |
| * { 'n': 6 } | |
| * ]; | |
| * | |
| * _.sum(objects, function(object) { | |
| * return object.n; | |
| * }); | |
| * // => 10 | |
| * | |
| * // using the `_.property` callback shorthand | |
| * _.sum(objects, 'n'); | |
| * // => 10 | |
| */ | |
| function sum(collection, iteratee, thisArg) { | |
| if (thisArg && isIterateeCall(collection, iteratee, thisArg)) { | |
| iteratee = undefined; | |
| } | |
| iteratee = getCallback(iteratee, thisArg, 3); | |
| return iteratee.length == 1 | |
| ? arraySum(isArray(collection) ? collection : toIterable(collection), iteratee) | |
| : baseSum(collection, iteratee); | |
| } | |
| /*------------------------------------------------------------------------*/ | |
| // Ensure wrappers are instances of `baseLodash`. | |
| lodash.prototype = baseLodash.prototype; | |
| LodashWrapper.prototype = baseCreate(baseLodash.prototype); | |
| LodashWrapper.prototype.constructor = LodashWrapper; | |
| LazyWrapper.prototype = baseCreate(baseLodash.prototype); | |
| LazyWrapper.prototype.constructor = LazyWrapper; | |
| // Add functions to the `Map` cache. | |
| MapCache.prototype['delete'] = mapDelete; | |
| MapCache.prototype.get = mapGet; | |
| MapCache.prototype.has = mapHas; | |
| MapCache.prototype.set = mapSet; | |
| // Add functions to the `Set` cache. | |
| SetCache.prototype.push = cachePush; | |
| // Assign cache to `_.memoize`. | |
| memoize.Cache = MapCache; | |
| // Add functions that return wrapped values when chaining. | |
| lodash.after = after; | |
| lodash.ary = ary; | |
| lodash.assign = assign; | |
| lodash.at = at; | |
| lodash.before = before; | |
| lodash.bind = bind; | |
| lodash.bindAll = bindAll; | |
| lodash.bindKey = bindKey; | |
| lodash.callback = callback; | |
| lodash.chain = chain; | |
| lodash.chunk = chunk; | |
| lodash.compact = compact; | |
| lodash.constant = constant; | |
| lodash.countBy = countBy; | |
| lodash.create = create; | |
| lodash.curry = curry; | |
| lodash.curryRight = curryRight; | |
| lodash.debounce = debounce; | |
| lodash.defaults = defaults; | |
| lodash.defaultsDeep = defaultsDeep; | |
| lodash.defer = defer; | |
| lodash.delay = delay; | |
| lodash.difference = difference; | |
| lodash.drop = drop; | |
| lodash.dropRight = dropRight; | |
| lodash.dropRightWhile = dropRightWhile; | |
| lodash.dropWhile = dropWhile; | |
| lodash.fill = fill; | |
| lodash.filter = filter; | |
| lodash.flatten = flatten; | |
| lodash.flattenDeep = flattenDeep; | |
| lodash.flow = flow; | |
| lodash.flowRight = flowRight; | |
| lodash.forEach = forEach; | |
| lodash.forEachRight = forEachRight; | |
| lodash.forIn = forIn; | |
| lodash.forInRight = forInRight; | |
| lodash.forOwn = forOwn; | |
| lodash.forOwnRight = forOwnRight; | |
| lodash.functions = functions; | |
| lodash.groupBy = groupBy; | |
| lodash.indexBy = indexBy; | |
| lodash.initial = initial; | |
| lodash.intersection = intersection; | |
| lodash.invert = invert; | |
| lodash.invoke = invoke; | |
| lodash.keys = keys; | |
| lodash.keysIn = keysIn; | |
| lodash.map = map; | |
| lodash.mapKeys = mapKeys; | |
| lodash.mapValues = mapValues; | |
| lodash.matches = matches; | |
| lodash.matchesProperty = matchesProperty; | |
| lodash.memoize = memoize; | |
| lodash.merge = merge; | |
| lodash.method = method; | |
| lodash.methodOf = methodOf; | |
| lodash.mixin = mixin; | |
| lodash.modArgs = modArgs; | |
| lodash.negate = negate; | |
| lodash.omit = omit; | |
| lodash.once = once; | |
| lodash.pairs = pairs; | |
| lodash.partial = partial; | |
| lodash.partialRight = partialRight; | |
| lodash.partition = partition; | |
| lodash.pick = pick; | |
| lodash.pluck = pluck; | |
| lodash.property = property; | |
| lodash.propertyOf = propertyOf; | |
| lodash.pull = pull; | |
| lodash.pullAt = pullAt; | |
| lodash.range = range; | |
| lodash.rearg = rearg; | |
| lodash.reject = reject; | |
| lodash.remove = remove; | |
| lodash.rest = rest; | |
| lodash.restParam = restParam; | |
| lodash.set = set; | |
| lodash.shuffle = shuffle; | |
| lodash.slice = slice; | |
| lodash.sortBy = sortBy; | |
| lodash.sortByAll = sortByAll; | |
| lodash.sortByOrder = sortByOrder; | |
| lodash.spread = spread; | |
| lodash.take = take; | |
| lodash.takeRight = takeRight; | |
| lodash.takeRightWhile = takeRightWhile; | |
| lodash.takeWhile = takeWhile; | |
| lodash.tap = tap; | |
| lodash.throttle = throttle; | |
| lodash.thru = thru; | |
| lodash.times = times; | |
| lodash.toArray = toArray; | |
| lodash.toPlainObject = toPlainObject; | |
| lodash.transform = transform; | |
| lodash.union = union; | |
| lodash.uniq = uniq; | |
| lodash.unzip = unzip; | |
| lodash.unzipWith = unzipWith; | |
| lodash.values = values; | |
| lodash.valuesIn = valuesIn; | |
| lodash.where = where; | |
| lodash.without = without; | |
| lodash.wrap = wrap; | |
| lodash.xor = xor; | |
| lodash.zip = zip; | |
| lodash.zipObject = zipObject; | |
| lodash.zipWith = zipWith; | |
| // Add aliases. | |
| lodash.backflow = flowRight; | |
| lodash.collect = map; | |
| lodash.compose = flowRight; | |
| lodash.each = forEach; | |
| lodash.eachRight = forEachRight; | |
| lodash.extend = assign; | |
| lodash.iteratee = callback; | |
| lodash.methods = functions; | |
| lodash.object = zipObject; | |
| lodash.select = filter; | |
| lodash.tail = rest; | |
| lodash.unique = uniq; | |
| // Add functions to `lodash.prototype`. | |
| mixin(lodash, lodash); | |
| /*------------------------------------------------------------------------*/ | |
| // Add functions that return unwrapped values when chaining. | |
| lodash.add = add; | |
| lodash.attempt = attempt; | |
| lodash.camelCase = camelCase; | |
| lodash.capitalize = capitalize; | |
| lodash.ceil = ceil; | |
| lodash.clone = clone; | |
| lodash.cloneDeep = cloneDeep; | |
| lodash.deburr = deburr; | |
| lodash.endsWith = endsWith; | |
| lodash.escape = escape; | |
| lodash.escapeRegExp = escapeRegExp; | |
| lodash.every = every; | |
| lodash.find = find; | |
| lodash.findIndex = findIndex; | |
| lodash.findKey = findKey; | |
| lodash.findLast = findLast; | |
| lodash.findLastIndex = findLastIndex; | |
| lodash.findLastKey = findLastKey; | |
| lodash.findWhere = findWhere; | |
| lodash.first = first; | |
| lodash.floor = floor; | |
| lodash.get = get; | |
| lodash.gt = gt; | |
| lodash.gte = gte; | |
| lodash.has = has; | |
| lodash.identity = identity; | |
| lodash.includes = includes; | |
| lodash.indexOf = indexOf; | |
| lodash.inRange = inRange; | |
| lodash.isArguments = isArguments; | |
| lodash.isArray = isArray; | |
| lodash.isBoolean = isBoolean; | |
| lodash.isDate = isDate; | |
| lodash.isElement = isElement; | |
| lodash.isEmpty = isEmpty; | |
| lodash.isEqual = isEqual; | |
| lodash.isError = isError; | |
| lodash.isFinite = isFinite; | |
| lodash.isFunction = isFunction; | |
| lodash.isMatch = isMatch; | |
| lodash.isNaN = isNaN; | |
| lodash.isNative = isNative; | |
| lodash.isNull = isNull; | |
| lodash.isNumber = isNumber; | |
| lodash.isObject = isObject; | |
| lodash.isPlainObject = isPlainObject; | |
| lodash.isRegExp = isRegExp; | |
| lodash.isString = isString; | |
| lodash.isTypedArray = isTypedArray; | |
| lodash.isUndefined = isUndefined; | |
| lodash.kebabCase = kebabCase; | |
| lodash.last = last; | |
| lodash.lastIndexOf = lastIndexOf; | |
| lodash.lt = lt; | |
| lodash.lte = lte; | |
| lodash.max = max; | |
| lodash.min = min; | |
| lodash.noConflict = noConflict; | |
| lodash.noop = noop; | |
| lodash.now = now; | |
| lodash.pad = pad; | |
| lodash.padLeft = padLeft; | |
| lodash.padRight = padRight; | |
| lodash.parseInt = parseInt; | |
| lodash.random = random; | |
| lodash.reduce = reduce; | |
| lodash.reduceRight = reduceRight; | |
| lodash.repeat = repeat; | |
| lodash.result = result; | |
| lodash.round = round; | |
| lodash.runInContext = runInContext; | |
| lodash.size = size; | |
| lodash.snakeCase = snakeCase; | |
| lodash.some = some; | |
| lodash.sortedIndex = sortedIndex; | |
| lodash.sortedLastIndex = sortedLastIndex; | |
| lodash.startCase = startCase; | |
| lodash.startsWith = startsWith; | |
| lodash.sum = sum; | |
| lodash.template = template; | |
| lodash.trim = trim; | |
| lodash.trimLeft = trimLeft; | |
| lodash.trimRight = trimRight; | |
| lodash.trunc = trunc; | |
| lodash.unescape = unescape; | |
| lodash.uniqueId = uniqueId; | |
| lodash.words = words; | |
| // Add aliases. | |
| lodash.all = every; | |
| lodash.any = some; | |
| lodash.contains = includes; | |
| lodash.eq = isEqual; | |
| lodash.detect = find; | |
| lodash.foldl = reduce; | |
| lodash.foldr = reduceRight; | |
| lodash.head = first; | |
| lodash.include = includes; | |
| lodash.inject = reduce; | |
| mixin(lodash, (function() { | |
| var source = {}; | |
| baseForOwn(lodash, function(func, methodName) { | |
| if (!lodash.prototype[methodName]) { | |
| source[methodName] = func; | |
| } | |
| }); | |
| return source; | |
| }()), false); | |
| /*------------------------------------------------------------------------*/ | |
| // Add functions capable of returning wrapped and unwrapped values when chaining. | |
| lodash.sample = sample; | |
| lodash.prototype.sample = function(n) { | |
| if (!this.__chain__ && n == null) { | |
| return sample(this.value()); | |
| } | |
| return this.thru(function(value) { | |
| return sample(value, n); | |
| }); | |
| }; | |
| /*------------------------------------------------------------------------*/ | |
| /** | |
| * The semantic version number. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @type string | |
| */ | |
| lodash.VERSION = VERSION; | |
| // Assign default placeholders. | |
| arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) { | |
| lodash[methodName].placeholder = lodash; | |
| }); | |
| // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. | |
| arrayEach(['drop', 'take'], function(methodName, index) { | |
| LazyWrapper.prototype[methodName] = function(n) { | |
| var filtered = this.__filtered__; | |
| if (filtered && !index) { | |
| return new LazyWrapper(this); | |
| } | |
| n = n == null ? 1 : nativeMax(nativeFloor(n) || 0, 0); | |
| var result = this.clone(); | |
| if (filtered) { | |
| result.__takeCount__ = nativeMin(result.__takeCount__, n); | |
| } else { | |
| result.__views__.push({ 'size': n, 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') }); | |
| } | |
| return result; | |
| }; | |
| LazyWrapper.prototype[methodName + 'Right'] = function(n) { | |
| return this.reverse()[methodName](n).reverse(); | |
| }; | |
| }); | |
| // Add `LazyWrapper` methods that accept an `iteratee` value. | |
| arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { | |
| var type = index + 1, | |
| isFilter = type != LAZY_MAP_FLAG; | |
| LazyWrapper.prototype[methodName] = function(iteratee, thisArg) { | |
| var result = this.clone(); | |
| result.__iteratees__.push({ 'iteratee': getCallback(iteratee, thisArg, 1), 'type': type }); | |
| result.__filtered__ = result.__filtered__ || isFilter; | |
| return result; | |
| }; | |
| }); | |
| // Add `LazyWrapper` methods for `_.first` and `_.last`. | |
| arrayEach(['first', 'last'], function(methodName, index) { | |
| var takeName = 'take' + (index ? 'Right' : ''); | |
| LazyWrapper.prototype[methodName] = function() { | |
| return this[takeName](1).value()[0]; | |
| }; | |
| }); | |
| // Add `LazyWrapper` methods for `_.initial` and `_.rest`. | |
| arrayEach(['initial', 'rest'], function(methodName, index) { | |
| var dropName = 'drop' + (index ? '' : 'Right'); | |
| LazyWrapper.prototype[methodName] = function() { | |
| return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); | |
| }; | |
| }); | |
| // Add `LazyWrapper` methods for `_.pluck` and `_.where`. | |
| arrayEach(['pluck', 'where'], function(methodName, index) { | |
| var operationName = index ? 'filter' : 'map', | |
| createCallback = index ? baseMatches : property; | |
| LazyWrapper.prototype[methodName] = function(value) { | |
| return this[operationName](createCallback(value)); | |
| }; | |
| }); | |
| LazyWrapper.prototype.compact = function() { | |
| return this.filter(identity); | |
| }; | |
| LazyWrapper.prototype.reject = function(predicate, thisArg) { | |
| predicate = getCallback(predicate, thisArg, 1); | |
| return this.filter(function(value) { | |
| return !predicate(value); | |
| }); | |
| }; | |
| LazyWrapper.prototype.slice = function(start, end) { | |
| start = start == null ? 0 : (+start || 0); | |
| var result = this; | |
| if (result.__filtered__ && (start > 0 || end < 0)) { | |
| return new LazyWrapper(result); | |
| } | |
| if (start < 0) { | |
| result = result.takeRight(-start); | |
| } else if (start) { | |
| result = result.drop(start); | |
| } | |
| if (end !== undefined) { | |
| end = (+end || 0); | |
| result = end < 0 ? result.dropRight(-end) : result.take(end - start); | |
| } | |
| return result; | |
| }; | |
| LazyWrapper.prototype.takeRightWhile = function(predicate, thisArg) { | |
| return this.reverse().takeWhile(predicate, thisArg).reverse(); | |
| }; | |
| LazyWrapper.prototype.toArray = function() { | |
| return this.take(POSITIVE_INFINITY); | |
| }; | |
| // Add `LazyWrapper` methods to `lodash.prototype`. | |
| baseForOwn(LazyWrapper.prototype, function(func, methodName) { | |
| var checkIteratee = /^(?:filter|map|reject)|While$/.test(methodName), | |
| retUnwrapped = /^(?:first|last)$/.test(methodName), | |
| lodashFunc = lodash[retUnwrapped ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName]; | |
| if (!lodashFunc) { | |
| return; | |
| } | |
| lodash.prototype[methodName] = function() { | |
| var args = retUnwrapped ? [1] : arguments, | |
| chainAll = this.__chain__, | |
| value = this.__wrapped__, | |
| isHybrid = !!this.__actions__.length, | |
| isLazy = value instanceof LazyWrapper, | |
| iteratee = args[0], | |
| useLazy = isLazy || isArray(value); | |
| if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { | |
| // Avoid lazy use if the iteratee has a "length" value other than `1`. | |
| isLazy = useLazy = false; | |
| } | |
| var interceptor = function(value) { | |
| return (retUnwrapped && chainAll) | |
| ? lodashFunc(value, 1)[0] | |
| : lodashFunc.apply(undefined, arrayPush([value], args)); | |
| }; | |
| var action = { 'func': thru, 'args': [interceptor], 'thisArg': undefined }, | |
| onlyLazy = isLazy && !isHybrid; | |
| if (retUnwrapped && !chainAll) { | |
| if (onlyLazy) { | |
| value = value.clone(); | |
| value.__actions__.push(action); | |
| return func.call(value); | |
| } | |
| return lodashFunc.call(undefined, this.value())[0]; | |
| } | |
| if (!retUnwrapped && useLazy) { | |
| value = onlyLazy ? value : new LazyWrapper(this); | |
| var result = func.apply(value, args); | |
| result.__actions__.push(action); | |
| return new LodashWrapper(result, chainAll); | |
| } | |
| return this.thru(interceptor); | |
| }; | |
| }); | |
| // Add `Array` and `String` methods to `lodash.prototype`. | |
| arrayEach(['join', 'pop', 'push', 'replace', 'shift', 'sort', 'splice', 'split', 'unshift'], function(methodName) { | |
| var func = (/^(?:replace|split)$/.test(methodName) ? stringProto : arrayProto)[methodName], | |
| chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', | |
| retUnwrapped = /^(?:join|pop|replace|shift)$/.test(methodName); | |
| lodash.prototype[methodName] = function() { | |
| var args = arguments; | |
| if (retUnwrapped && !this.__chain__) { | |
| return func.apply(this.value(), args); | |
| } | |
| return this[chainName](function(value) { | |
| return func.apply(value, args); | |
| }); | |
| }; | |
| }); | |
| // Map minified function names to their real names. | |
| baseForOwn(LazyWrapper.prototype, function(func, methodName) { | |
| var lodashFunc = lodash[methodName]; | |
| if (lodashFunc) { | |
| var key = (lodashFunc.name + ''), | |
| names = realNames[key] || (realNames[key] = []); | |
| names.push({ 'name': methodName, 'func': lodashFunc }); | |
| } | |
| }); | |
| realNames[createHybridWrapper(undefined, BIND_KEY_FLAG).name] = [{ 'name': 'wrapper', 'func': undefined }]; | |
| // Add functions to the lazy wrapper. | |
| LazyWrapper.prototype.clone = lazyClone; | |
| LazyWrapper.prototype.reverse = lazyReverse; | |
| LazyWrapper.prototype.value = lazyValue; | |
| // Add chaining functions to the `lodash` wrapper. | |
| lodash.prototype.chain = wrapperChain; | |
| lodash.prototype.commit = wrapperCommit; | |
| lodash.prototype.concat = wrapperConcat; | |
| lodash.prototype.plant = wrapperPlant; | |
| lodash.prototype.reverse = wrapperReverse; | |
| lodash.prototype.toString = wrapperToString; | |
| lodash.prototype.run = lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue; | |
| // Add function aliases to the `lodash` wrapper. | |
| lodash.prototype.collect = lodash.prototype.map; | |
| lodash.prototype.head = lodash.prototype.first; | |
| lodash.prototype.select = lodash.prototype.filter; | |
| lodash.prototype.tail = lodash.prototype.rest; | |
| return lodash; | |
| } | |
| /*--------------------------------------------------------------------------*/ | |
| // Export lodash. | |
| var _ = runInContext(); | |
| // Some AMD build optimizers like r.js check for condition patterns like the following: | |
| if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { | |
| // Expose lodash to the global object when an AMD loader is present to avoid | |
| // errors in cases where lodash is loaded by a script tag and not intended | |
| // as an AMD module. See http://requirejs.org/docs/errors.html#mismatch for | |
| // more details. | |
| root._ = _; | |
| // Define as an anonymous module so, through path mapping, it can be | |
| // referenced as the "underscore" module. | |
| define(function() { | |
| return _; | |
| }); | |
| } | |
| // Check for `exports` after `define` in case a build optimizer adds an `exports` object. | |
| else if (freeExports && freeModule) { | |
| // Export for Node.js or RingoJS. | |
| if (moduleExports) { | |
| (freeModule.exports = _)._ = _; | |
| } | |
| // Export for Rhino with CommonJS support. | |
| else { | |
| freeExports._ = _; | |
| } | |
| } | |
| else { | |
| // Export for a browser or Rhino. | |
| root._ = _; | |
| } | |
| }.call(this)); | |
| }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) | |
| },{}],2:[function(require,module,exports){ | |
| var _ = require('./lib/lodash'); | |
| console.log("Browserified data loaded"); | |
| console.log("If lodash works you should get a random number here: ", _.random(0,5)); | |
| },{"./lib/lodash":1}]},{},[2]); |
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