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aenain/airtable.browser.js

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airtable.browser.js v0.5.0 that does not conflict with requirejs
Raw
airtable.browser.js
requireNoConflict=(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof requireNoConflict=="function"&&requireNoConflict;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 requireNoConflict=="function"&&requireNoConflict;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
'use strict';
var Class = require('./class');
var AirtableError = Class.extend({
init: function(error, message, statusCode) {
this.error = error;
this.message = message;
this.statusCode = statusCode;
},
toString: function() {
return [
this.message,
'(', this.error, ')',
this.statusCode ? '[Http code ' + this.statusCode + ']' : ''
].join('');
}
});
module.exports = AirtableError;
},{"./class":4}],2:[function(require,module,exports){
'use strict';
var _ = require('lodash');
var internalConfig = require('./internal_config');
var Class = require('./class');
var AirtableError = require('./airtable_error');
var Table = require('./table');
var runAction = require('./run_action');
var Base = Class.extend({
init: function(airtable, baseId) {
this._airtable = airtable;
this._id = baseId;
},
table: function(tableName) {
return new Table(this, null, tableName);
},
runAction: function(method, path, queryParams, bodyData, callback) {
runAction(this, method, path, queryParams, bodyData, callback);
},
_checkStatusForError: function(statusCode, body) {
if (statusCode === 401) {
return new AirtableError('AUTHENTICATION_REQUIRED', 'You should provide valid api key to perform this operation', statusCode);
} else if (statusCode === 403) {
return new AirtableError('NOT_AUTHORIZED', 'You are not authorized to perform this operation', statusCode);
} else if (statusCode === 404) {
return (function(){
var message = (body && body.error && body.error.message) ? body.error.message : 'Could not find what you are looking for';
return new AirtableError('NOT_FOUND', message, statusCode);
})();
} else if (statusCode === 413) {
return new AirtableError('REQUEST_TOO_LARGE', 'Request body is too large', statusCode);
} else if (statusCode === 422) {
return new AirtableError(body.error.type, body.error.message, statusCode);
} else if (statusCode === 429) {
return new AirtableError('TOO_MANY_REQUESTS', 'You have made too many requests in a short period of time. Please retry your request later', statusCode);
}else if (statusCode === 500) {
return new AirtableError('SERVER_ERROR', 'Try again. If the problem persists, contact support.', statusCode);
} else if (statusCode === 503) {
return new AirtableError('SERVICE_UNAVAILABLE', 'The service is temporarily unavailable. Please retry shortly.', statusCode);
}
},
doCall: function(tableName) {
return this.table(tableName);
},
getId: function() {
return this._id;
}
});
Base.createFunctor = function(airtable, baseId) {
var base = new Base(airtable, baseId);
var baseFn = function() {
return base.doCall.apply(base, arguments);
};
_.each(['table', 'runAction', 'getId'], function(baseMethod) {
baseFn[baseMethod] = base[baseMethod].bind(base);
});
baseFn._base = base;
baseFn.tables = base.tables;
return baseFn;
};
module.exports = Base;
},{"./airtable_error":1,"./class":4,"./internal_config":6,"./run_action":10,"./table":11,"lodash":19}],3:[function(require,module,exports){
'use strict';
/**
* Given a function fn that takes a callback as its last argument, returns
* a new version of the function that takes the callback optionally. If
* the function is not called with a callback for the last argument, the
* function will return a promise instead.
*/
function callbackToPromise(fn, context, callbackArgIndex) {
return function() {
// If callbackArgIndex isn't provided, use the last argument.
if (callbackArgIndex === undefined) {
callbackArgIndex = arguments.length > 0 ? arguments.length - 1 : 0;
}
var callbackArg = arguments[callbackArgIndex];
if (typeof callbackArg === 'function') {
fn.apply(context, arguments);
} else {
var args = [];
for (var i = 0; i < arguments.length; i++) {
args.push(arguments[i]);
}
return new Promise(function(resolve, reject) {
args.push(function(err, result) {
if (err) {
reject(err);
} else {
resolve(result);
}
});
fn.apply(context, args);
});
}
};
}
module.exports = callbackToPromise;
},{}],4:[function(require,module,exports){
/*jshint strict:false */
/* Simple JavaScript Inheritance
* By John Resig http://ejohn.org/
* MIT Licensed.
*/
// Inspired by base2 and Prototype
// http://ejohn.org/blog/simple-javascript-inheritance/
(function(){
var initializing = false, fnTest = /xyz/.test(function(){xyz;}) ? /\b_super\b/ : /.*/;
// The base Class implementation (does nothing)
var Class = function(){};
// Create a new Class that inherits from this class
Class.extend = function extender(prop) {
var _super = this.prototype;
// Instantiate a base class (but only create the instance,
// don't run the init constructor)
initializing = true;
var prototype = new this();
initializing = false;
// Copy the properties over onto the new prototype
for (var name in prop) {
// Check if we're overwriting an existing function
prototype[name] = typeof prop[name] == "function" &&
typeof _super[name] == "function" && fnTest.test(prop[name]) ?
(function(name, fn){
return function() {
var tmp = this._super;
// Add a new ._super() method that is the same method
// but on the super-class
this._super = _super[name];
// The method only need to be bound temporarily, so we
// remove it when we're done executing
var ret = fn.apply(this, arguments);
this._super = tmp;
return ret;
};
})(name, prop[name]) :
prop[name];
}
// The dummy class constructor
function Class() {
// All construction is actually done in the init method
if ( !initializing && this.init )
this.init.apply(this, arguments);
}
// Populate our constructed prototype object
Class.prototype = prototype;
// Enforce the constructor to be what we expect
Class.prototype.constructor = Class;
// And make this class extendable
Class.extend = extender;
return Class;
};
if (typeof exports !== 'undefined') {
module.exports = Class;
} else {
window.Class = Class;
}
})();
},{}],5:[function(require,module,exports){
'use strict';
var didWarnForDeprecation = {};
/**
* Convenience function for marking a function as deprecated.
*
* Will emit a warning the first time that function is called.
*
* @param fn the function to mark as deprecated.
* @param key a unique key identifying the function.
* @param message the warning message.
*
* @return a wrapped function
*/
function deprecate(fn, key, message) {
return function() {
if (!didWarnForDeprecation[key]) {
didWarnForDeprecation[key] = true;
console.warn(message);
}
fn.apply(this, arguments);
};
}
module.exports = deprecate;
},{}],6:[function(require,module,exports){
module.exports={
"RETRY_DELAY_IF_RATE_LIMITED": 5000
}
},{}],7:[function(require,module,exports){
'use strict';
var _ = require('lodash');
// Adapted from jQuery.param:
// https://github.com/jquery/jquery/blob/2.2-stable/src/serialize.js
function buildParams(prefix, obj, addFn) {
var name;
if (_.isArray(obj)) {
// Serialize array item.
_.each(obj, function(value, index) {
if (/\[\]$/.test(prefix)) {
// Treat each array item as a scalar.
addFn(prefix, value);
} else {
// Item is non-scalar (array or object), encode its numeric index.
buildParams(
prefix + '[' + (typeof value === 'object' && value !== null && value !== undefined ? index : '') + ']',
value,
addFn
);
}
});
} else if (typeof obj === 'object') {
// Serialize object item.
for (name in obj) {
buildParams(prefix + '[' + name + ']', obj[name], addFn);
}
} else {
// Serialize scalar item.
addFn(prefix, obj);
}
}
function objectToQueryParamString(obj) {
var parts = [];
var addFn = function(key, value) {
value = (value === null || value === undefined) ? '' : value;
parts.push(encodeURIComponent(key) + '=' + encodeURIComponent(value));
};
_.each(_.keys(obj), function(key) {
var value = obj[key];
buildParams(key, value, addFn);
});
return parts.join('&').replace(/%20/g, '+');
}
module.exports = objectToQueryParamString;
},{"lodash":19}],8:[function(require,module,exports){
'use strict';
var assert = require('assert');
var _ = require('lodash');
var check = require('./typecheck');
var Class = require('./class');
var Record = require('./record');
var callbackToPromise = require('./callback_to_promise');
var Query = Class.extend({
/**
* Builds a query object. Won't fetch until `firstPage` or
* or `eachPage` is called.
*/
init: function(table, params) {
assert(_.isPlainObject(params));
_.each(_.keys(params), function(key) {
var value = params[key];
assert(Query.paramValidators[key] && Query.paramValidators[key](value).pass, 'Invalid parameter for Query: ' + key);
});
this._table = table;
this._params = params;
this.firstPage = callbackToPromise(this.firstPage, this);
this.eachPage = callbackToPromise(this.eachPage, this, 1);
this.all = callbackToPromise(this.all, this);
},
/**
* Fetches the first page of results for the query asynchronously,
* then calls `done(error, records)`.
*/
firstPage: function(done) {
assert(_.isFunction(done),
'The first parameter to `firstPage` must be a function');
this.eachPage(function(records, fetchNextPage) {
done(null, records);
}, function(error) {
done(error, null);
});
},
/**
* Fetches each page of results for the query asynchronously.
*
* Calls `pageCallback(records, fetchNextPage)` for each
* page. You must call `fetchNextPage()` to fetch the next page of
* results.
*
* After fetching all pages, or if there's an error, calls
* `done(error)`.
*/
eachPage: function(pageCallback, done) {
assert(_.isFunction(pageCallback),
'The first parameter to `eachPage` must be a function');
assert(_.isFunction(done) || _.isUndefined(done),
'The second parameter to `eachPage` must be a function or undefined');
var that = this;
var path = '/' + this._table._urlEncodedNameOrId();
var params = _.clone(this._params);
var inner = function() {
that._table._base.runAction('get', path, params, null, function(err, response, result) {
if (err) {
done(err, null);
} else {
var next;
if (result.offset) {
params.offset = result.offset;
next = inner;
} else {
next = function() {
if (done) {
done(null);
}
};
}
var records = _.map(result.records, function(recordJson) {
return new Record(that._table, null, recordJson);
});
pageCallback(records, next);
}
});
};
inner();
},
/**
* Fetches all pages of results asynchronously. May take a long time.
*/
all: function(done) {
assert(_.isFunction(done),
'The first parameter to `all` must be a function');
var allRecords = [];
this.eachPage(function(pageRecords, fetchNextPage) {
allRecords.push.apply(allRecords, pageRecords);
fetchNextPage();
}, function(err) {
if (err) {
done(err, null);
} else {
done(null, allRecords);
}
});
}
});
Query.paramValidators = {
fields:
check(check.isArrayOf(_.isString), 'the value for `fields` should be an array of strings'),
filterByFormula:
check(_.isString, 'the value for `filterByFormula` should be a string'),
maxRecords:
check(_.isNumber, 'the value for `maxRecords` should be a number'),
pageSize:
check(_.isNumber, 'the value for `pageSize` should be a number'),
sort:
check(check.isArrayOf(function(obj) {
return (
_.isPlainObject(obj) &&
_.isString(obj.field) &&
(_.isUndefined(obj.direction) || _.contains(['asc', 'desc'], obj.direction))
);
}), 'the value for `sort` should be an array of sort objects. ' +
'Each sort object must have a string `field` value, and an optional ' +
'`direction` value that is "asc" or "desc".'
),
view:
check(_.isString, 'the value for `view` should be a string'),
};
/**
* Validates the parameters for passing to the Query constructor.
*
* @return an object with two keys:
* validParams: the object that should be passed to the constructor.
* ignoredKeys: a list of keys that will be ignored.
* errors: a list of error messages.
*/
Query.validateParams = function validateParams(params) {
assert(_.isPlainObject(params));
var validParams = {};
var ignoredKeys = [];
var errors = [];
_.each(_.keys(params), function(key) {
var value = params[key];
if (Query.paramValidators.hasOwnProperty(key)) {
var validator = Query.paramValidators[key];
var validationResult = validator(value);
if (validationResult.pass) {
validParams[key] = value;
} else {
errors.push(validationResult.error);
}
} else {
ignoredKeys.push(key);
}
});
return {
validParams: validParams,
ignoredKeys: ignoredKeys,
errors: errors,
};
};
module.exports = Query;
},{"./callback_to_promise":3,"./class":4,"./record":9,"./typecheck":12,"assert":14,"lodash":19}],9:[function(require,module,exports){
'use strict';
var _ = require('lodash');
var Class = require('./class');
var callbackToPromise = require('./callback_to_promise');
var Record = Class.extend({
init: function(table, recordId, recordJson) {
this._table = table;
this.id = recordId || recordJson.id;
this.setRawJson(recordJson);
this.save = callbackToPromise(this.save, this);
this.patchUpdate = callbackToPromise(this.patchUpdate, this);
this.putUpdate = callbackToPromise(this.putUpdate, this);
this.destroy = callbackToPromise(this.destroy, this);
this.fetch = callbackToPromise(this.fetch, this);
this.updateFields = this.patchUpdate;
this.replaceFields = this.putUpdate;
},
getId: function() {
return this.id;
},
get: function(columnName) {
return this.fields[columnName];
},
set: function(columnName, columnValue) {
this.fields[columnName] = columnValue;
},
save: function(done) {
this.putUpdate(this.fields, done);
},
patchUpdate: function(cellValuesByName, opts, done) {
var that = this;
if (!done) {
done = opts;
opts = {};
}
var updateBody = _.extend({
fields: cellValuesByName
}, opts);
this._table._base.runAction('patch', '/' + this._table._urlEncodedNameOrId() + '/' + this.id, {}, updateBody, function(err, response, results) {
if (err) { done(err); return; }
that.setRawJson(results);
done(null, that);
});
},
putUpdate: function(cellValuesByName, opts, done) {
var that = this;
if (!done) {
done = opts;
opts = {};
}
var updateBody = _.extend({
fields: cellValuesByName
}, opts);
this._table._base.runAction('put', '/' + this._table._urlEncodedNameOrId() + '/' + this.id, {}, updateBody, function(err, response, results) {
if (err) { done(err); return; }
that.setRawJson(results);
done(null, that);
});
},
destroy: function(done) {
var that = this;
this._table._base.runAction('delete', '/' + this._table._urlEncodedNameOrId() + '/' + this.id, {}, null, function(err, response, results) {
if (err) { done(err); return; }
done(null, that);
});
},
fetch: function(done) {
var that = this;
this._table._base.runAction('get', '/' + this._table._urlEncodedNameOrId() + '/' + this.id, {}, null, function(err, response, results) {
if (err) { done(err); return; }
that.setRawJson(results);
done(null, that);
});
},
setRawJson: function(rawJson) {
this._rawJson = rawJson;
this.fields = (this._rawJson && this._rawJson.fields) || {};
}
});
module.exports = Record;
},{"./callback_to_promise":3,"./class":4,"lodash":19}],10:[function(require,module,exports){
'use strict';
var internalConfig = require('./internal_config');
var objectToQueryParamString = require('./object_to_query_param_string');
// This will become require('xhr') in the browser.
var request = require('request');
function runAction(base, method, path, queryParams, bodyData, callback) {
var url = base._airtable._endpointUrl + '/v' + base._airtable._apiVersionMajor + '/' + base._id + path + '?' + objectToQueryParamString(queryParams);
var options = {
method: method.toUpperCase(),
url: url,
json: true,
timeout: base._airtable.requestTimeout,
headers: {
'authorization': 'Bearer ' + base._airtable._apiKey,
'x-api-version': base._airtable._apiVersion,
'x-airtable-application-id': base.getId(),
},
// agentOptions are ignored when running in the browser.
agentOptions: {
rejectUnauthorized: base._airtable._allowUnauthorizedSsl
},
};
if (bodyData !== null) {
options.body = bodyData;
}
request(options, function(error, resp, body) {
if (error) {
callback(error, resp, body);
return;
}
if (resp.statusCode === 429 && !base._airtable._noRetryIfRateLimited) {
setTimeout(function() {
runAction(base, method, path, queryParams, bodyData, callback);
}, internalConfig.RETRY_DELAY_IF_RATE_LIMITED);
return;
}
error = base._checkStatusForError(resp.statusCode, body);
callback(error, resp, body);
});
}
module.exports = runAction;
},{"./internal_config":6,"./object_to_query_param_string":7,"request":20}],11:[function(require,module,exports){
'use strict';
var _ = require('lodash');
var assert = require('assert');
var async = require('async');
var AirtableError = require('./airtable_error');
var Class = require('./class');
var deprecate = require('./deprecate');
var Query = require('./query');
var Record = require('./record');
var callbackToPromise = require('./callback_to_promise');
var Table = Class.extend({
init: function(base, tableId, tableName) {
this._base = base;
assert(tableId || tableName, 'Table name or table ID is required');
this.id = tableId;
this.name = tableName;
// Public API
this.find = callbackToPromise(this._findRecordById, this);
this.select = this._selectRecords.bind(this);
this.create = callbackToPromise(this._createRecord, this);
this.update = callbackToPromise(this._updateRecord, this);
this.destroy = callbackToPromise(this._destroyRecord, this);
this.replace = callbackToPromise(this._replaceRecord, this);
// Deprecated API
this.list = deprecate(this._listRecords.bind(this),
'table.list',
'Airtable: `list()` is deprecated. Use `select()` instead.');
this.forEach = deprecate(this._forEachRecord.bind(this),
'table.forEach',
'Airtable: `forEach()` is deprecated. Use `select()` instead.');
},
_findRecordById: function(recordId, done) {
var record = new Record(this, recordId);
record.fetch(done);
},
_selectRecords: function(params) {
if (_.isUndefined(params)) {
params = {};
}
if (arguments.length > 1) {
console.warn('Airtable: `select` takes only one parameter, but it was given ' +
arguments.length + ' parameters. ' +
'Use `eachPage` or `firstPage` to fetch records.');
}
if (_.isPlainObject(params)) {
var validationResults = Query.validateParams(params);
if (validationResults.errors.length) {
var formattedErrors = validationResults.errors.map(function(error) {
return ' * ' + error;
});
assert(false, 'Airtable: invalid parameters for `select`:\n' +
formattedErrors.join('\n'));
}
if (validationResults.ignoredKeys.length) {
console.warn('Airtable: the following parameters to `select` will be ignored: ' +
validationResults.ignoredKeys.join(', '));
}
return new Query(this, validationResults.validParams);
} else {
assert(false, 'Airtable: the parameter for `select` should be a plain object or undefined.');
}
},
_urlEncodedNameOrId: function(){
return this.id || encodeURIComponent(this.name);
},
_createRecord: function(recordData, optionalParameters, done) {
var that = this;
if (!done) {
done = optionalParameters;
optionalParameters = {};
}
var requestData = _.extend({fields: recordData}, optionalParameters);
this._base.runAction('post', '/' + that._urlEncodedNameOrId() + '/', {}, requestData, function(err, resp, body) {
if (err) { done(err); return; }
var record = new Record(that, body.id, body);
done(null, record);
});
},
_updateRecord: function(recordId, recordData, opts, done) {
var record = new Record(this, recordId);
if (!done) {
done = opts;
record.patchUpdate(recordData, done);
} else {
record.patchUpdate(recordData, opts, done);
}
},
_replaceRecord: function(recordId, recordData, opts, done) {
var record = new Record(this, recordId);
if (!done) {
done = opts;
record.putUpdate(recordData, done);
} else {
record.putUpdate(recordData, opts, done);
}
},
_destroyRecord: function(recordId, done) {
var record = new Record(this, recordId);
record.destroy(done);
},
_listRecords: function(limit, offset, opts, done) {
var that = this;
if (!done) {
done = opts;
opts = {};
}
var listRecordsParameters = _.extend({
limit: limit, offset: offset
}, opts);
async.waterfall([
function(next) {
that._base.runAction('get', '/' + that._urlEncodedNameOrId() + '/', listRecordsParameters, null, next);
},
function(response, results, next) {
var records = _.map(results.records, function(recordJson) {
return new Record(that, null, recordJson);
});
next(null, records, results.offset);
}
], done);
},
_forEachRecord: function(opts, callback, done) {
if (arguments.length === 2) {
done = callback;
callback = opts;
opts = {};
}
var that = this;
var limit = Table.__recordsPerPageForIteration || 100;
var offset = null;
var nextPage = function() {
that._listRecords(limit, offset, opts, function(err, page, newOffset) {
if (err) { done(err); return; }
_.each(page, callback);
if (newOffset) {
offset = newOffset;
nextPage();
} else {
done();
}
});
};
nextPage();
}
});
module.exports = Table;
},{"./airtable_error":1,"./callback_to_promise":3,"./class":4,"./deprecate":5,"./query":8,"./record":9,"assert":14,"async":13,"lodash":19}],12:[function(require,module,exports){
'use strict';
var _ = require('lodash');
function check(fn, error) {
return function(value) {
if (fn(value)) {
return {pass: true};
} else {
return {pass: false, error: error};
}
};
}
check.isOneOf = function isOneOf(options) {
return _.contains.bind(this, options);
};
check.isArrayOf = function(itemValidator) {
return function(value) {
return _.isArray(value) && _.every(value, itemValidator);
};
};
module.exports = check;
},{"lodash":19}],13:[function(require,module,exports){
(function (process,global){
/*!
* async
* https://github.com/caolan/async
*
* Copyright 2010-2014 Caolan McMahon
* Released under the MIT license
*/
(function () {
var async = {};
function noop() {}
function identity(v) {
return v;
}
function toBool(v) {
return !!v;
}
function notId(v) {
return !v;
}
// global on the server, window in the browser
var previous_async;
// Establish the root object, `window` (`self`) in the browser, `global`
// on the server, or `this` in some virtual machines. We use `self`
// instead of `window` for `WebWorker` support.
var root = typeof self === 'object' && self.self === self && self ||
typeof global === 'object' && global.global === global && global ||
this;
if (root != null) {
previous_async = root.async;
}
async.noConflict = function () {
root.async = previous_async;
return async;
};
function only_once(fn) {
return function() {
if (fn === null) throw new Error("Callback was already called.");
fn.apply(this, arguments);
fn = null;
};
}
function _once(fn) {
return function() {
if (fn === null) return;
fn.apply(this, arguments);
fn = null;
};
}
//// cross-browser compatiblity functions ////
var _toString = Object.prototype.toString;
var _isArray = Array.isArray || function (obj) {
return _toString.call(obj) === '[object Array]';
};
// Ported from underscore.js isObject
var _isObject = function(obj) {
var type = typeof obj;
return type === 'function' || type === 'object' && !!obj;
};
function _isArrayLike(arr) {
return _isArray(arr) || (
// has a positive integer length property
typeof arr.length === "number" &&
arr.length >= 0 &&
arr.length % 1 === 0
);
}
function _arrayEach(arr, iterator) {
var index = -1,
length = arr.length;
while (++index < length) {
iterator(arr[index], index, arr);
}
}
function _map(arr, iterator) {
var index = -1,
length = arr.length,
result = Array(length);
while (++index < length) {
result[index] = iterator(arr[index], index, arr);
}
return result;
}
function _range(count) {
return _map(Array(count), function (v, i) { return i; });
}
function _reduce(arr, iterator, memo) {
_arrayEach(arr, function (x, i, a) {
memo = iterator(memo, x, i, a);
});
return memo;
}
function _forEachOf(object, iterator) {
_arrayEach(_keys(object), function (key) {
iterator(object[key], key);
});
}
function _indexOf(arr, item) {
for (var i = 0; i < arr.length; i++) {
if (arr[i] === item) return i;
}
return -1;
}
var _keys = Object.keys || function (obj) {
var keys = [];
for (var k in obj) {
if (obj.hasOwnProperty(k)) {
keys.push(k);
}
}
return keys;
};
function _keyIterator(coll) {
var i = -1;
var len;
var keys;
if (_isArrayLike(coll)) {
len = coll.length;
return function next() {
i++;
return i < len ? i : null;
};
} else {
keys = _keys(coll);
len = keys.length;
return function next() {
i++;
return i < len ? keys[i] : null;
};
}
}
// Similar to ES6's rest param (http://ariya.ofilabs.com/2013/03/es6-and-rest-parameter.html)
// This accumulates the arguments passed into an array, after a given index.
// From underscore.js (https://github.com/jashkenas/underscore/pull/2140).
function _restParam(func, startIndex) {
startIndex = startIndex == null ? func.length - 1 : +startIndex;
return function() {
var length = Math.max(arguments.length - startIndex, 0);
var rest = Array(length);
for (var index = 0; index < length; index++) {
rest[index] = arguments[index + startIndex];
}
switch (startIndex) {
case 0: return func.call(this, rest);
case 1: return func.call(this, arguments[0], rest);
}
// Currently unused but handle cases outside of the switch statement:
// var args = Array(startIndex + 1);
// for (index = 0; index < startIndex; index++) {
// args[index] = arguments[index];
// }
// args[startIndex] = rest;
// return func.apply(this, args);
};
}
function _withoutIndex(iterator) {
return function (value, index, callback) {
return iterator(value, callback);
};
}
//// exported async module functions ////
//// nextTick implementation with browser-compatible fallback ////
// capture the global reference to guard against fakeTimer mocks
var _setImmediate = typeof setImmediate === 'function' && setImmediate;
var _delay = _setImmediate ? function(fn) {
// not a direct alias for IE10 compatibility
_setImmediate(fn);
} : function(fn) {
setTimeout(fn, 0);
};
if (typeof process === 'object' && typeof process.nextTick === 'function') {
async.nextTick = process.nextTick;
} else {
async.nextTick = _delay;
}
async.setImmediate = _setImmediate ? _delay : async.nextTick;
async.forEach =
async.each = function (arr, iterator, callback) {
return async.eachOf(arr, _withoutIndex(iterator), callback);
};
async.forEachSeries =
async.eachSeries = function (arr, iterator, callback) {
return async.eachOfSeries(arr, _withoutIndex(iterator), callback);
};
async.forEachLimit =
async.eachLimit = function (arr, limit, iterator, callback) {
return _eachOfLimit(limit)(arr, _withoutIndex(iterator), callback);
};
async.forEachOf =
async.eachOf = function (object, iterator, callback) {
callback = _once(callback || noop);
object = object || [];
var iter = _keyIterator(object);
var key, completed = 0;
while ((key = iter()) != null) {
completed += 1;
iterator(object[key], key, only_once(done));
}
if (completed === 0) callback(null);
function done(err) {
completed--;
if (err) {
callback(err);
}
// Check key is null in case iterator isn't exhausted
// and done resolved synchronously.
else if (key === null && completed <= 0) {
callback(null);
}
}
};
async.forEachOfSeries =
async.eachOfSeries = function (obj, iterator, callback) {
callback = _once(callback || noop);
obj = obj || [];
var nextKey = _keyIterator(obj);
var key = nextKey();
function iterate() {
var sync = true;
if (key === null) {
return callback(null);
}
iterator(obj[key], key, only_once(function (err) {
if (err) {
callback(err);
}
else {
key = nextKey();
if (key === null) {
return callback(null);
} else {
if (sync) {
async.setImmediate(iterate);
} else {
iterate();
}
}
}
}));
sync = false;
}
iterate();
};
async.forEachOfLimit =
async.eachOfLimit = function (obj, limit, iterator, callback) {
_eachOfLimit(limit)(obj, iterator, callback);
};
function _eachOfLimit(limit) {
return function (obj, iterator, callback) {
callback = _once(callback || noop);
obj = obj || [];
var nextKey = _keyIterator(obj);
if (limit <= 0) {
return callback(null);
}
var done = false;
var running = 0;
var errored = false;
(function replenish () {
if (done && running <= 0) {
return callback(null);
}
while (running < limit && !errored) {
var key = nextKey();
if (key === null) {
done = true;
if (running <= 0) {
callback(null);
}
return;
}
running += 1;
iterator(obj[key], key, only_once(function (err) {
running -= 1;
if (err) {
callback(err);
errored = true;
}
else {
replenish();
}
}));
}
})();
};
}
function doParallel(fn) {
return function (obj, iterator, callback) {
return fn(async.eachOf, obj, iterator, callback);
};
}
function doParallelLimit(fn) {
return function (obj, limit, iterator, callback) {
return fn(_eachOfLimit(limit), obj, iterator, callback);
};
}
function doSeries(fn) {
return function (obj, iterator, callback) {
return fn(async.eachOfSeries, obj, iterator, callback);
};
}
function _asyncMap(eachfn, arr, iterator, callback) {
callback = _once(callback || noop);
arr = arr || [];
var results = _isArrayLike(arr) ? [] : {};
eachfn(arr, function (value, index, callback) {
iterator(value, function (err, v) {
results[index] = v;
callback(err);
});
}, function (err) {
callback(err, results);
});
}
async.map = doParallel(_asyncMap);
async.mapSeries = doSeries(_asyncMap);
async.mapLimit = doParallelLimit(_asyncMap);
// reduce only has a series version, as doing reduce in parallel won't
// work in many situations.
async.inject =
async.foldl =
async.reduce = function (arr, memo, iterator, callback) {
async.eachOfSeries(arr, function (x, i, callback) {
iterator(memo, x, function (err, v) {
memo = v;
callback(err);
});
}, function (err) {
callback(err, memo);
});
};
async.foldr =
async.reduceRight = function (arr, memo, iterator, callback) {
var reversed = _map(arr, identity).reverse();
async.reduce(reversed, memo, iterator, callback);
};
async.transform = function (arr, memo, iterator, callback) {
if (arguments.length === 3) {
callback = iterator;
iterator = memo;
memo = _isArray(arr) ? [] : {};
}
async.eachOf(arr, function(v, k, cb) {
iterator(memo, v, k, cb);
}, function(err) {
callback(err, memo);
});
};
function _filter(eachfn, arr, iterator, callback) {
var results = [];
eachfn(arr, function (x, index, callback) {
iterator(x, function (v) {
if (v) {
results.push({index: index, value: x});
}
callback();
});
}, function () {
callback(_map(results.sort(function (a, b) {
return a.index - b.index;
}), function (x) {
return x.value;
}));
});
}
async.select =
async.filter = doParallel(_filter);
async.selectLimit =
async.filterLimit = doParallelLimit(_filter);
async.selectSeries =
async.filterSeries = doSeries(_filter);
function _reject(eachfn, arr, iterator, callback) {
_filter(eachfn, arr, function(value, cb) {
iterator(value, function(v) {
cb(!v);
});
}, callback);
}
async.reject = doParallel(_reject);
async.rejectLimit = doParallelLimit(_reject);
async.rejectSeries = doSeries(_reject);
function _createTester(eachfn, check, getResult) {
return function(arr, limit, iterator, cb) {
function done() {
if (cb) cb(getResult(false, void 0));
}
function iteratee(x, _, callback) {
if (!cb) return callback();
iterator(x, function (v) {
if (cb && check(v)) {
cb(getResult(true, x));
cb = iterator = false;
}
callback();
});
}
if (arguments.length > 3) {
eachfn(arr, limit, iteratee, done);
} else {
cb = iterator;
iterator = limit;
eachfn(arr, iteratee, done);
}
};
}
async.any =
async.some = _createTester(async.eachOf, toBool, identity);
async.someLimit = _createTester(async.eachOfLimit, toBool, identity);
async.all =
async.every = _createTester(async.eachOf, notId, notId);
async.everyLimit = _createTester(async.eachOfLimit, notId, notId);
function _findGetResult(v, x) {
return x;
}
async.detect = _createTester(async.eachOf, identity, _findGetResult);
async.detectSeries = _createTester(async.eachOfSeries, identity, _findGetResult);
async.detectLimit = _createTester(async.eachOfLimit, identity, _findGetResult);
async.sortBy = function (arr, iterator, callback) {
async.map(arr, function (x, callback) {
iterator(x, function (err, criteria) {
if (err) {
callback(err);
}
else {
callback(null, {value: x, criteria: criteria});
}
});
}, function (err, results) {
if (err) {
return callback(err);
}
else {
callback(null, _map(results.sort(comparator), function (x) {
return x.value;
}));
}
});
function comparator(left, right) {
var a = left.criteria, b = right.criteria;
return a < b ? -1 : a > b ? 1 : 0;
}
};
async.auto = function (tasks, concurrency, callback) {
if (typeof arguments[1] === 'function') {
// concurrency is optional, shift the args.
callback = concurrency;
concurrency = null;
}
callback = _once(callback || noop);
var keys = _keys(tasks);
var remainingTasks = keys.length;
if (!remainingTasks) {
return callback(null);
}
if (!concurrency) {
concurrency = remainingTasks;
}
var results = {};
var runningTasks = 0;
var hasError = false;
var listeners = [];
function addListener(fn) {
listeners.unshift(fn);
}
function removeListener(fn) {
var idx = _indexOf(listeners, fn);
if (idx >= 0) listeners.splice(idx, 1);
}
function taskComplete() {
remainingTasks--;
_arrayEach(listeners.slice(0), function (fn) {
fn();
});
}
addListener(function () {
if (!remainingTasks) {
callback(null, results);
}
});
_arrayEach(keys, function (k) {
if (hasError) return;
var task = _isArray(tasks[k]) ? tasks[k]: [tasks[k]];
var taskCallback = _restParam(function(err, args) {
runningTasks--;
if (args.length <= 1) {
args = args[0];
}
if (err) {
var safeResults = {};
_forEachOf(results, function(val, rkey) {
safeResults[rkey] = val;
});
safeResults[k] = args;
hasError = true;
callback(err, safeResults);
}
else {
results[k] = args;
async.setImmediate(taskComplete);
}
});
var requires = task.slice(0, task.length - 1);
// prevent dead-locks
var len = requires.length;
var dep;
while (len--) {
if (!(dep = tasks[requires[len]])) {
throw new Error('Has nonexistent dependency in ' + requires.join(', '));
}
if (_isArray(dep) && _indexOf(dep, k) >= 0) {
throw new Error('Has cyclic dependencies');
}
}
function ready() {
return runningTasks < concurrency && _reduce(requires, function (a, x) {
return (a && results.hasOwnProperty(x));
}, true) && !results.hasOwnProperty(k);
}
if (ready()) {
runningTasks++;
task[task.length - 1](taskCallback, results);
}
else {
addListener(listener);
}
function listener() {
if (ready()) {
runningTasks++;
removeListener(listener);
task[task.length - 1](taskCallback, results);
}
}
});
};
async.retry = function(times, task, callback) {
var DEFAULT_TIMES = 5;
var DEFAULT_INTERVAL = 0;
var attempts = [];
var opts = {
times: DEFAULT_TIMES,
interval: DEFAULT_INTERVAL
};
function parseTimes(acc, t){
if(typeof t === 'number'){
acc.times = parseInt(t, 10) || DEFAULT_TIMES;
} else if(typeof t === 'object'){
acc.times = parseInt(t.times, 10) || DEFAULT_TIMES;
acc.interval = parseInt(t.interval, 10) || DEFAULT_INTERVAL;
} else {
throw new Error('Unsupported argument type for \'times\': ' + typeof t);
}
}
var length = arguments.length;
if (length < 1 || length > 3) {
throw new Error('Invalid arguments - must be either (task), (task, callback), (times, task) or (times, task, callback)');
} else if (length <= 2 && typeof times === 'function') {
callback = task;
task = times;
}
if (typeof times !== 'function') {
parseTimes(opts, times);
}
opts.callback = callback;
opts.task = task;
function wrappedTask(wrappedCallback, wrappedResults) {
function retryAttempt(task, finalAttempt) {
return function(seriesCallback) {
task(function(err, result){
seriesCallback(!err || finalAttempt, {err: err, result: result});
}, wrappedResults);
};
}
function retryInterval(interval){
return function(seriesCallback){
setTimeout(function(){
seriesCallback(null);
}, interval);
};
}
while (opts.times) {
var finalAttempt = !(opts.times-=1);
attempts.push(retryAttempt(opts.task, finalAttempt));
if(!finalAttempt && opts.interval > 0){
attempts.push(retryInterval(opts.interval));
}
}
async.series(attempts, function(done, data){
data = data[data.length - 1];
(wrappedCallback || opts.callback)(data.err, data.result);
});
}
// If a callback is passed, run this as a controll flow
return opts.callback ? wrappedTask() : wrappedTask;
};
async.waterfall = function (tasks, callback) {
callback = _once(callback || noop);
if (!_isArray(tasks)) {
var err = new Error('First argument to waterfall must be an array of functions');
return callback(err);
}
if (!tasks.length) {
return callback();
}
function wrapIterator(iterator) {
return _restParam(function (err, args) {
if (err) {
callback.apply(null, [err].concat(args));
}
else {
var next = iterator.next();
if (next) {
args.push(wrapIterator(next));
}
else {
args.push(callback);
}
ensureAsync(iterator).apply(null, args);
}
});
}
wrapIterator(async.iterator(tasks))();
};
function _parallel(eachfn, tasks, callback) {
callback = callback || noop;
var results = _isArrayLike(tasks) ? [] : {};
eachfn(tasks, function (task, key, callback) {
task(_restParam(function (err, args) {
if (args.length <= 1) {
args = args[0];
}
results[key] = args;
callback(err);
}));
}, function (err) {
callback(err, results);
});
}
async.parallel = function (tasks, callback) {
_parallel(async.eachOf, tasks, callback);
};
async.parallelLimit = function(tasks, limit, callback) {
_parallel(_eachOfLimit(limit), tasks, callback);
};
async.series = function(tasks, callback) {
_parallel(async.eachOfSeries, tasks, callback);
};
async.iterator = function (tasks) {
function makeCallback(index) {
function fn() {
if (tasks.length) {
tasks[index].apply(null, arguments);
}
return fn.next();
}
fn.next = function () {
return (index < tasks.length - 1) ? makeCallback(index + 1): null;
};
return fn;
}
return makeCallback(0);
};
async.apply = _restParam(function (fn, args) {
return _restParam(function (callArgs) {
return fn.apply(
null, args.concat(callArgs)
);
});
});
function _concat(eachfn, arr, fn, callback) {
var result = [];
eachfn(arr, function (x, index, cb) {
fn(x, function (err, y) {
result = result.concat(y || []);
cb(err);
});
}, function (err) {
callback(err, result);
});
}
async.concat = doParallel(_concat);
async.concatSeries = doSeries(_concat);
async.whilst = function (test, iterator, callback) {
callback = callback || noop;
if (test()) {
var next = _restParam(function(err, args) {
if (err) {
callback(err);
} else if (test.apply(this, args)) {
iterator(next);
} else {
callback.apply(null, [null].concat(args));
}
});
iterator(next);
} else {
callback(null);
}
};
async.doWhilst = function (iterator, test, callback) {
var calls = 0;
return async.whilst(function() {
return ++calls <= 1 || test.apply(this, arguments);
}, iterator, callback);
};
async.until = function (test, iterator, callback) {
return async.whilst(function() {
return !test.apply(this, arguments);
}, iterator, callback);
};
async.doUntil = function (iterator, test, callback) {
return async.doWhilst(iterator, function() {
return !test.apply(this, arguments);
}, callback);
};
async.during = function (test, iterator, callback) {
callback = callback || noop;
var next = _restParam(function(err, args) {
if (err) {
callback(err);
} else {
args.push(check);
test.apply(this, args);
}
});
var check = function(err, truth) {
if (err) {
callback(err);
} else if (truth) {
iterator(next);
} else {
callback(null);
}
};
test(check);
};
async.doDuring = function (iterator, test, callback) {
var calls = 0;
async.during(function(next) {
if (calls++ < 1) {
next(null, true);
} else {
test.apply(this, arguments);
}
}, iterator, callback);
};
function _queue(worker, concurrency, payload) {
if (concurrency == null) {
concurrency = 1;
}
else if(concurrency === 0) {
throw new Error('Concurrency must not be zero');
}
function _insert(q, data, pos, callback) {
if (callback != null && typeof callback !== "function") {
throw new Error("task callback must be a function");
}
q.started = true;
if (!_isArray(data)) {
data = [data];
}
if(data.length === 0 && q.idle()) {
// call drain immediately if there are no tasks
return async.setImmediate(function() {
q.drain();
});
}
_arrayEach(data, function(task) {
var item = {
data: task,
callback: callback || noop
};
if (pos) {
q.tasks.unshift(item);
} else {
q.tasks.push(item);
}
if (q.tasks.length === q.concurrency) {
q.saturated();
}
});
async.setImmediate(q.process);
}
function _next(q, tasks) {
return function(){
workers -= 1;
var removed = false;
var args = arguments;
_arrayEach(tasks, function (task) {
_arrayEach(workersList, function (worker, index) {
if (worker === task && !removed) {
workersList.splice(index, 1);
removed = true;
}
});
task.callback.apply(task, args);
});
if (q.tasks.length + workers === 0) {
q.drain();
}
q.process();
};
}
var workers = 0;
var workersList = [];
var q = {
tasks: [],
concurrency: concurrency,
payload: payload,
saturated: noop,
empty: noop,
drain: noop,
started: false,
paused: false,
push: function (data, callback) {
_insert(q, data, false, callback);
},
kill: function () {
q.drain = noop;
q.tasks = [];
},
unshift: function (data, callback) {
_insert(q, data, true, callback);
},
process: function () {
while(!q.paused && workers < q.concurrency && q.tasks.length){
var tasks = q.payload ?
q.tasks.splice(0, q.payload) :
q.tasks.splice(0, q.tasks.length);
var data = _map(tasks, function (task) {
return task.data;
});
if (q.tasks.length === 0) {
q.empty();
}
workers += 1;
workersList.push(tasks[0]);
var cb = only_once(_next(q, tasks));
worker(data, cb);
}
},
length: function () {
return q.tasks.length;
},
running: function () {
return workers;
},
workersList: function () {
return workersList;
},
idle: function() {
return q.tasks.length + workers === 0;
},
pause: function () {
q.paused = true;
},
resume: function () {
if (q.paused === false) { return; }
q.paused = false;
var resumeCount = Math.min(q.concurrency, q.tasks.length);
// Need to call q.process once per concurrent
// worker to preserve full concurrency after pause
for (var w = 1; w <= resumeCount; w++) {
async.setImmediate(q.process);
}
}
};
return q;
}
async.queue = function (worker, concurrency) {
var q = _queue(function (items, cb) {
worker(items[0], cb);
}, concurrency, 1);
return q;
};
async.priorityQueue = function (worker, concurrency) {
function _compareTasks(a, b){
return a.priority - b.priority;
}
function _binarySearch(sequence, item, compare) {
var beg = -1,
end = sequence.length - 1;
while (beg < end) {
var mid = beg + ((end - beg + 1) >>> 1);
if (compare(item, sequence[mid]) >= 0) {
beg = mid;
} else {
end = mid - 1;
}
}
return beg;
}
function _insert(q, data, priority, callback) {
if (callback != null && typeof callback !== "function") {
throw new Error("task callback must be a function");
}
q.started = true;
if (!_isArray(data)) {
data = [data];
}
if(data.length === 0) {
// call drain immediately if there are no tasks
return async.setImmediate(function() {
q.drain();
});
}
_arrayEach(data, function(task) {
var item = {
data: task,
priority: priority,
callback: typeof callback === 'function' ? callback : noop
};
q.tasks.splice(_binarySearch(q.tasks, item, _compareTasks) + 1, 0, item);
if (q.tasks.length === q.concurrency) {
q.saturated();
}
async.setImmediate(q.process);
});
}
// Start with a normal queue
var q = async.queue(worker, concurrency);
// Override push to accept second parameter representing priority
q.push = function (data, priority, callback) {
_insert(q, data, priority, callback);
};
// Remove unshift function
delete q.unshift;
return q;
};
async.cargo = function (worker, payload) {
return _queue(worker, 1, payload);
};
function _console_fn(name) {
return _restParam(function (fn, args) {
fn.apply(null, args.concat([_restParam(function (err, args) {
if (typeof console === 'object') {
if (err) {
if (console.error) {
console.error(err);
}
}
else if (console[name]) {
_arrayEach(args, function (x) {
console[name](x);
});
}
}
})]));
});
}
async.log = _console_fn('log');
async.dir = _console_fn('dir');
/*async.info = _console_fn('info');
async.warn = _console_fn('warn');
async.error = _console_fn('error');*/
async.memoize = function (fn, hasher) {
var memo = {};
var queues = {};
var has = Object.prototype.hasOwnProperty;
hasher = hasher || identity;
var memoized = _restParam(function memoized(args) {
var callback = args.pop();
var key = hasher.apply(null, args);
if (has.call(memo, key)) {
async.setImmediate(function () {
callback.apply(null, memo[key]);
});
}
else if (has.call(queues, key)) {
queues[key].push(callback);
}
else {
queues[key] = [callback];
fn.apply(null, args.concat([_restParam(function (args) {
memo[key] = args;
var q = queues[key];
delete queues[key];
for (var i = 0, l = q.length; i < l; i++) {
q[i].apply(null, args);
}
})]));
}
});
memoized.memo = memo;
memoized.unmemoized = fn;
return memoized;
};
async.unmemoize = function (fn) {
return function () {
return (fn.unmemoized || fn).apply(null, arguments);
};
};
function _times(mapper) {
return function (count, iterator, callback) {
mapper(_range(count), iterator, callback);
};
}
async.times = _times(async.map);
async.timesSeries = _times(async.mapSeries);
async.timesLimit = function (count, limit, iterator, callback) {
return async.mapLimit(_range(count), limit, iterator, callback);
};
async.seq = function (/* functions... */) {
var fns = arguments;
return _restParam(function (args) {
var that = this;
var callback = args[args.length - 1];
if (typeof callback == 'function') {
args.pop();
} else {
callback = noop;
}
async.reduce(fns, args, function (newargs, fn, cb) {
fn.apply(that, newargs.concat([_restParam(function (err, nextargs) {
cb(err, nextargs);
})]));
},
function (err, results) {
callback.apply(that, [err].concat(results));
});
});
};
async.compose = function (/* functions... */) {
return async.seq.apply(null, Array.prototype.reverse.call(arguments));
};
function _applyEach(eachfn) {
return _restParam(function(fns, args) {
var go = _restParam(function(args) {
var that = this;
var callback = args.pop();
return eachfn(fns, function (fn, _, cb) {
fn.apply(that, args.concat([cb]));
},
callback);
});
if (args.length) {
return go.apply(this, args);
}
else {
return go;
}
});
}
async.applyEach = _applyEach(async.eachOf);
async.applyEachSeries = _applyEach(async.eachOfSeries);
async.forever = function (fn, callback) {
var done = only_once(callback || noop);
var task = ensureAsync(fn);
function next(err) {
if (err) {
return done(err);
}
task(next);
}
next();
};
function ensureAsync(fn) {
return _restParam(function (args) {
var callback = args.pop();
args.push(function () {
var innerArgs = arguments;
if (sync) {
async.setImmediate(function () {
callback.apply(null, innerArgs);
});
} else {
callback.apply(null, innerArgs);
}
});
var sync = true;
fn.apply(this, args);
sync = false;
});
}
async.ensureAsync = ensureAsync;
async.constant = _restParam(function(values) {
var args = [null].concat(values);
return function (callback) {
return callback.apply(this, args);
};
});
async.wrapSync =
async.asyncify = function asyncify(func) {
return _restParam(function (args) {
var callback = args.pop();
var result;
try {
result = func.apply(this, args);
} catch (e) {
return callback(e);
}
// if result is Promise object
if (_isObject(result) && typeof result.then === "function") {
result.then(function(value) {
callback(null, value);
})["catch"](function(err) {
callback(err.message ? err : new Error(err));
});
} else {
callback(null, result);
}
});
};
// Node.js
if (typeof module === 'object' && module.exports) {
module.exports = async;
}
// AMD / RequireJS
else if (typeof define === 'function' && define.amd) {
define([], function () {
return async;
});
}
// included directly via <script> tag
else {
root.async = async;
}
}());
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"_process":16}],14:[function(require,module,exports){
// http://wiki.commonjs.org/wiki/Unit_Testing/1.0
//
// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8!
//
// Originally from narwhal.js (http://narwhaljs.org)
// Copyright (c) 2009 Thomas Robinson <280north.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the 'Software'), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// when used in node, this will actually load the util module we depend on
// versus loading the builtin util module as happens otherwise
// this is a bug in node module loading as far as I am concerned
var util = require('util/');
var pSlice = Array.prototype.slice;
var hasOwn = Object.prototype.hasOwnProperty;
// 1. The assert module provides functions that throw
// AssertionError's when particular conditions are not met. The
// assert module must conform to the following interface.
var assert = module.exports = ok;
// 2. The AssertionError is defined in assert.
// new assert.AssertionError({ message: message,
// actual: actual,
// expected: expected })
assert.AssertionError = function AssertionError(options) {
this.name = 'AssertionError';
this.actual = options.actual;
this.expected = options.expected;
this.operator = options.operator;
if (options.message) {
this.message = options.message;
this.generatedMessage = false;
} else {
this.message = getMessage(this);
this.generatedMessage = true;
}
var stackStartFunction = options.stackStartFunction || fail;
if (Error.captureStackTrace) {
Error.captureStackTrace(this, stackStartFunction);
}
else {
// non v8 browsers so we can have a stacktrace
var err = new Error();
if (err.stack) {
var out = err.stack;
// try to strip useless frames
var fn_name = stackStartFunction.name;
var idx = out.indexOf('\n' + fn_name);
if (idx >= 0) {
// once we have located the function frame
// we need to strip out everything before it (and its line)
var next_line = out.indexOf('\n', idx + 1);
out = out.substring(next_line + 1);
}
this.stack = out;
}
}
};
// assert.AssertionError instanceof Error
util.inherits(assert.AssertionError, Error);
function replacer(key, value) {
if (util.isUndefined(value)) {
return '' + value;
}
if (util.isNumber(value) && !isFinite(value)) {
return value.toString();
}
if (util.isFunction(value) || util.isRegExp(value)) {
return value.toString();
}
return value;
}
function truncate(s, n) {
if (util.isString(s)) {
return s.length < n ? s : s.slice(0, n);
} else {
return s;
}
}
function getMessage(self) {
return truncate(JSON.stringify(self.actual, replacer), 128) + ' ' +
self.operator + ' ' +
truncate(JSON.stringify(self.expected, replacer), 128);
}
// At present only the three keys mentioned above are used and
// understood by the spec. Implementations or sub modules can pass
// other keys to the AssertionError's constructor - they will be
// ignored.
// 3. All of the following functions must throw an AssertionError
// when a corresponding condition is not met, with a message that
// may be undefined if not provided. All assertion methods provide
// both the actual and expected values to the assertion error for
// display purposes.
function fail(actual, expected, message, operator, stackStartFunction) {
throw new assert.AssertionError({
message: message,
actual: actual,
expected: expected,
operator: operator,
stackStartFunction: stackStartFunction
});
}
// EXTENSION! allows for well behaved errors defined elsewhere.
assert.fail = fail;
// 4. Pure assertion tests whether a value is truthy, as determined
// by !!guard.
// assert.ok(guard, message_opt);
// This statement is equivalent to assert.equal(true, !!guard,
// message_opt);. To test strictly for the value true, use
// assert.strictEqual(true, guard, message_opt);.
function ok(value, message) {
if (!value) fail(value, true, message, '==', assert.ok);
}
assert.ok = ok;
// 5. The equality assertion tests shallow, coercive equality with
// ==.
// assert.equal(actual, expected, message_opt);
assert.equal = function equal(actual, expected, message) {
if (actual != expected) fail(actual, expected, message, '==', assert.equal);
};
// 6. The non-equality assertion tests for whether two objects are not equal
// with != assert.notEqual(actual, expected, message_opt);
assert.notEqual = function notEqual(actual, expected, message) {
if (actual == expected) {
fail(actual, expected, message, '!=', assert.notEqual);
}
};
// 7. The equivalence assertion tests a deep equality relation.
// assert.deepEqual(actual, expected, message_opt);
assert.deepEqual = function deepEqual(actual, expected, message) {
if (!_deepEqual(actual, expected)) {
fail(actual, expected, message, 'deepEqual', assert.deepEqual);
}
};
function _deepEqual(actual, expected) {
// 7.1. All identical values are equivalent, as determined by ===.
if (actual === expected) {
return true;
} else if (util.isBuffer(actual) && util.isBuffer(expected)) {
if (actual.length != expected.length) return false;
for (var i = 0; i < actual.length; i++) {
if (actual[i] !== expected[i]) return false;
}
return true;
// 7.2. If the expected value is a Date object, the actual value is
// equivalent if it is also a Date object that refers to the same time.
} else if (util.isDate(actual) && util.isDate(expected)) {
return actual.getTime() === expected.getTime();
// 7.3 If the expected value is a RegExp object, the actual value is
// equivalent if it is also a RegExp object with the same source and
// properties (`global`, `multiline`, `lastIndex`, `ignoreCase`).
} else if (util.isRegExp(actual) && util.isRegExp(expected)) {
return actual.source === expected.source &&
actual.global === expected.global &&
actual.multiline === expected.multiline &&
actual.lastIndex === expected.lastIndex &&
actual.ignoreCase === expected.ignoreCase;
// 7.4. Other pairs that do not both pass typeof value == 'object',
// equivalence is determined by ==.
} else if (!util.isObject(actual) && !util.isObject(expected)) {
return actual == expected;
// 7.5 For all other Object pairs, including Array objects, equivalence is
// determined by having the same number of owned properties (as verified
// with Object.prototype.hasOwnProperty.call), the same set of keys
// (although not necessarily the same order), equivalent values for every
// corresponding key, and an identical 'prototype' property. Note: this
// accounts for both named and indexed properties on Arrays.
} else {
return objEquiv(actual, expected);
}
}
function isArguments(object) {
return Object.prototype.toString.call(object) == '[object Arguments]';
}
function objEquiv(a, b) {
if (util.isNullOrUndefined(a) || util.isNullOrUndefined(b))
return false;
// an identical 'prototype' property.
if (a.prototype !== b.prototype) return false;
// if one is a primitive, the other must be same
if (util.isPrimitive(a) || util.isPrimitive(b)) {
return a === b;
}
var aIsArgs = isArguments(a),
bIsArgs = isArguments(b);
if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs))
return false;
if (aIsArgs) {
a = pSlice.call(a);
b = pSlice.call(b);
return _deepEqual(a, b);
}
var ka = objectKeys(a),
kb = objectKeys(b),
key, i;
// having the same number of owned properties (keys incorporates
// hasOwnProperty)
if (ka.length != kb.length)
return false;
//the same set of keys (although not necessarily the same order),
ka.sort();
kb.sort();
//~~~cheap key test
for (i = ka.length - 1; i >= 0; i--) {
if (ka[i] != kb[i])
return false;
}
//equivalent values for every corresponding key, and
//~~~possibly expensive deep test
for (i = ka.length - 1; i >= 0; i--) {
key = ka[i];
if (!_deepEqual(a[key], b[key])) return false;
}
return true;
}
// 8. The non-equivalence assertion tests for any deep inequality.
// assert.notDeepEqual(actual, expected, message_opt);
assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
if (_deepEqual(actual, expected)) {
fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
}
};
// 9. The strict equality assertion tests strict equality, as determined by ===.
// assert.strictEqual(actual, expected, message_opt);
assert.strictEqual = function strictEqual(actual, expected, message) {
if (actual !== expected) {
fail(actual, expected, message, '===', assert.strictEqual);
}
};
// 10. The strict non-equality assertion tests for strict inequality, as
// determined by !==. assert.notStrictEqual(actual, expected, message_opt);
assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
if (actual === expected) {
fail(actual, expected, message, '!==', assert.notStrictEqual);
}
};
function expectedException(actual, expected) {
if (!actual || !expected) {
return false;
}
if (Object.prototype.toString.call(expected) == '[object RegExp]') {
return expected.test(actual);
} else if (actual instanceof expected) {
return true;
} else if (expected.call({}, actual) === true) {
return true;
}
return false;
}
function _throws(shouldThrow, block, expected, message) {
var actual;
if (util.isString(expected)) {
message = expected;
expected = null;
}
try {
block();
} catch (e) {
actual = e;
}
message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
(message ? ' ' + message : '.');
if (shouldThrow && !actual) {
fail(actual, expected, 'Missing expected exception' + message);
}
if (!shouldThrow && expectedException(actual, expected)) {
fail(actual, expected, 'Got unwanted exception' + message);
}
if ((shouldThrow && actual && expected &&
!expectedException(actual, expected)) || (!shouldThrow && actual)) {
throw actual;
}
}
// 11. Expected to throw an error:
// assert.throws(block, Error_opt, message_opt);
assert.throws = function(block, /*optional*/error, /*optional*/message) {
_throws.apply(this, [true].concat(pSlice.call(arguments)));
};
// EXTENSION! This is annoying to write outside this module.
assert.doesNotThrow = function(block, /*optional*/message) {
_throws.apply(this, [false].concat(pSlice.call(arguments)));
};
assert.ifError = function(err) { if (err) {throw err;}};
var objectKeys = Object.keys || function (obj) {
var keys = [];
for (var key in obj) {
if (hasOwn.call(obj, key)) keys.push(key);
}
return keys;
};
},{"util/":18}],15:[function(require,module,exports){
if (typeof Object.create === 'function') {
// implementation from standard node.js 'util' module
module.exports = function inherits(ctor, superCtor) {
ctor.super_ = superCtor
ctor.prototype = Object.create(superCtor.prototype, {
constructor: {
value: ctor,
enumerable: false,
writable: true,
configurable: true
}
});
};
} else {
// old school shim for old browsers
module.exports = function inherits(ctor, superCtor) {
ctor.super_ = superCtor
var TempCtor = function () {}
TempCtor.prototype = superCtor.prototype
ctor.prototype = new TempCtor()
ctor.prototype.constructor = ctor
}
}
},{}],16:[function(require,module,exports){
// shim for using process in browser
var process = module.exports = {};
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;
function cleanUpNextTick() {
draining = false;
if (currentQueue.length) {
queue = currentQueue.concat(queue);
} else {
queueIndex = -1;
}
if (queue.length) {
drainQueue();
}
}
function drainQueue() {
if (draining) {
return;
}
var timeout = setTimeout(cleanUpNextTick);
draining = true;
var len = queue.length;
while(len) {
currentQueue = queue;
queue = [];
while (++queueIndex < len) {
currentQueue[queueIndex].run();
}
queueIndex = -1;
len = queue.length;
}
currentQueue = null;
draining = false;
clearTimeout(timeout);
}
process.nextTick = function (fun) {
var args = new Array(arguments.length - 1);
if (arguments.length > 1) {
for (var i = 1; i < arguments.length; i++) {
args[i - 1] = arguments[i];
}
}
queue.push(new Item(fun, args));
if (queue.length === 1 && !draining) {
setTimeout(drainQueue, 0);
}
};
// v8 likes predictible objects
function Item(fun, array) {
this.fun = fun;
this.array = array;
}
Item.prototype.run = function () {
this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};
function noop() {}
process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.binding = function (name) {
throw new Error('process.binding is not supported');
};
// TODO(shtylman)
process.cwd = function () { return '/' };
process.chdir = function (dir) {
throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };
},{}],17:[function(require,module,exports){
module.exports = function isBuffer(arg) {
return arg && typeof arg === 'object'
&& typeof arg.copy === 'function'
&& typeof arg.fill === 'function'
&& typeof arg.readUInt8 === 'function';
}
},{}],18:[function(require,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
var formatRegExp = /%[sdj%]/g;
exports.format = function(f) {
if (!isString(f)) {
var objects = [];
for (var i = 0; i < arguments.length; i++) {
objects.push(inspect(arguments[i]));
}
return objects.join(' ');
}
var i = 1;
var args = arguments;
var len = args.length;
var str = String(f).replace(formatRegExp, function(x) {
if (x === '%%') return '%';
if (i >= len) return x;
switch (x) {
case '%s': return String(args[i++]);
case '%d': return Number(args[i++]);
case '%j':
try {
return JSON.stringify(args[i++]);
} catch (_) {
return '[Circular]';
}
default:
return x;
}
});
for (var x = args[i]; i < len; x = args[++i]) {
if (isNull(x) || !isObject(x)) {
str += ' ' + x;
} else {
str += ' ' + inspect(x);
}
}
return str;
};
// Mark that a method should not be used.
// Returns a modified function which warns once by default.
// If --no-deprecation is set, then it is a no-op.
exports.deprecate = function(fn, msg) {
// Allow for deprecating things in the process of starting up.
if (isUndefined(global.process)) {
return function() {
return exports.deprecate(fn, msg).apply(this, arguments);
};
}
if (process.noDeprecation === true) {
return fn;
}
var warned = false;
function deprecated() {
if (!warned) {
if (process.throwDeprecation) {
throw new Error(msg);
} else if (process.traceDeprecation) {
console.trace(msg);
} else {
console.error(msg);
}
warned = true;
}
return fn.apply(this, arguments);
}
return deprecated;
};
var debugs = {};
var debugEnviron;
exports.debuglog = function(set) {
if (isUndefined(debugEnviron))
debugEnviron = process.env.NODE_DEBUG || '';
set = set.toUpperCase();
if (!debugs[set]) {
if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
var pid = process.pid;
debugs[set] = function() {
var msg = exports.format.apply(exports, arguments);
console.error('%s %d: %s', set, pid, msg);
};
} else {
debugs[set] = function() {};
}
}
return debugs[set];
};
/**
* Echos the value of a value. Trys to print the value out
* in the best way possible given the different types.
*
* @param {Object} obj The object to print out.
* @param {Object} opts Optional options object that alters the output.
*/
/* legacy: obj, showHidden, depth, colors*/
function inspect(obj, opts) {
// default options
var ctx = {
seen: [],
stylize: stylizeNoColor
};
// legacy...
if (arguments.length >= 3) ctx.depth = arguments[2];
if (arguments.length >= 4) ctx.colors = arguments[3];
if (isBoolean(opts)) {
// legacy...
ctx.showHidden = opts;
} else if (opts) {
// got an "options" object
exports._extend(ctx, opts);
}
// set default options
if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
if (isUndefined(ctx.depth)) ctx.depth = 2;
if (isUndefined(ctx.colors)) ctx.colors = false;
if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
if (ctx.colors) ctx.stylize = stylizeWithColor;
return formatValue(ctx, obj, ctx.depth);
}
exports.inspect = inspect;
// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
inspect.colors = {
'bold' : [1, 22],
'italic' : [3, 23],
'underline' : [4, 24],
'inverse' : [7, 27],
'white' : [37, 39],
'grey' : [90, 39],
'black' : [30, 39],
'blue' : [34, 39],
'cyan' : [36, 39],
'green' : [32, 39],
'magenta' : [35, 39],
'red' : [31, 39],
'yellow' : [33, 39]
};
// Don't use 'blue' not visible on cmd.exe
inspect.styles = {
'special': 'cyan',
'number': 'yellow',
'boolean': 'yellow',
'undefined': 'grey',
'null': 'bold',
'string': 'green',
'date': 'magenta',
// "name": intentionally not styling
'regexp': 'red'
};
function stylizeWithColor(str, styleType) {
var style = inspect.styles[styleType];
if (style) {
return '\u001b[' + inspect.colors[style][0] + 'm' + str +
'\u001b[' + inspect.colors[style][1] + 'm';
} else {
return str;
}
}
function stylizeNoColor(str, styleType) {
return str;
}
function arrayToHash(array) {
var hash = {};
array.forEach(function(val, idx) {
hash[val] = true;
});
return hash;
}
function formatValue(ctx, value, recurseTimes) {
// Provide a hook for user-specified inspect functions.
// Check that value is an object with an inspect function on it
if (ctx.customInspect &&
value &&
isFunction(value.inspect) &&
// Filter out the util module, it's inspect function is special
value.inspect !== exports.inspect &&
// Also filter out any prototype objects using the circular check.
!(value.constructor && value.constructor.prototype === value)) {
var ret = value.inspect(recurseTimes, ctx);
if (!isString(ret)) {
ret = formatValue(ctx, ret, recurseTimes);
}
return ret;
}
// Primitive types cannot have properties
var primitive = formatPrimitive(ctx, value);
if (primitive) {
return primitive;
}
// Look up the keys of the object.
var keys = Object.keys(value);
var visibleKeys = arrayToHash(keys);
if (ctx.showHidden) {
keys = Object.getOwnPropertyNames(value);
}
// IE doesn't make error fields non-enumerable
// http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
if (isError(value)
&& (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
return formatError(value);
}
// Some type of object without properties can be shortcutted.
if (keys.length === 0) {
if (isFunction(value)) {
var name = value.name ? ': ' + value.name : '';
return ctx.stylize('[Function' + name + ']', 'special');
}
if (isRegExp(value)) {
return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
}
if (isDate(value)) {
return ctx.stylize(Date.prototype.toString.call(value), 'date');
}
if (isError(value)) {
return formatError(value);
}
}
var base = '', array = false, braces = ['{', '}'];
// Make Array say that they are Array
if (isArray(value)) {
array = true;
braces = ['[', ']'];
}
// Make functions say that they are functions
if (isFunction(value)) {
var n = value.name ? ': ' + value.name : '';
base = ' [Function' + n + ']';
}
// Make RegExps say that they are RegExps
if (isRegExp(value)) {
base = ' ' + RegExp.prototype.toString.call(value);
}
// Make dates with properties first say the date
if (isDate(value)) {
base = ' ' + Date.prototype.toUTCString.call(value);
}
// Make error with message first say the error
if (isError(value)) {
base = ' ' + formatError(value);
}
if (keys.length === 0 && (!array || value.length == 0)) {
return braces[0] + base + braces[1];
}
if (recurseTimes < 0) {
if (isRegExp(value)) {
return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
} else {
return ctx.stylize('[Object]', 'special');
}
}
ctx.seen.push(value);
var output;
if (array) {
output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
} else {
output = keys.map(function(key) {
return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
});
}
ctx.seen.pop();
return reduceToSingleString(output, base, braces);
}
function formatPrimitive(ctx, value) {
if (isUndefined(value))
return ctx.stylize('undefined', 'undefined');
if (isString(value)) {
var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
.replace(/'/g, "\\'")
.replace(/\\"/g, '"') + '\'';
return ctx.stylize(simple, 'string');
}
if (isNumber(value))
return ctx.stylize('' + value, 'number');
if (isBoolean(value))
return ctx.stylize('' + value, 'boolean');
// For some reason typeof null is "object", so special case here.
if (isNull(value))
return ctx.stylize('null', 'null');
}
function formatError(value) {
return '[' + Error.prototype.toString.call(value) + ']';
}
function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
var output = [];
for (var i = 0, l = value.length; i < l; ++i) {
if (hasOwnProperty(value, String(i))) {
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
String(i), true));
} else {
output.push('');
}
}
keys.forEach(function(key) {
if (!key.match(/^\d+$/)) {
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
key, true));
}
});
return output;
}
function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
var name, str, desc;
desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
if (desc.get) {
if (desc.set) {
str = ctx.stylize('[Getter/Setter]', 'special');
} else {
str = ctx.stylize('[Getter]', 'special');
}
} else {
if (desc.set) {
str = ctx.stylize('[Setter]', 'special');
}
}
if (!hasOwnProperty(visibleKeys, key)) {
name = '[' + key + ']';
}
if (!str) {
if (ctx.seen.indexOf(desc.value) < 0) {
if (isNull(recurseTimes)) {
str = formatValue(ctx, desc.value, null);
} else {
str = formatValue(ctx, desc.value, recurseTimes - 1);
}
if (str.indexOf('\n') > -1) {
if (array) {
str = str.split('\n').map(function(line) {
return ' ' + line;
}).join('\n').substr(2);
} else {
str = '\n' + str.split('\n').map(function(line) {
return ' ' + line;
}).join('\n');
}
}
} else {
str = ctx.stylize('[Circular]', 'special');
}
}
if (isUndefined(name)) {
if (array && key.match(/^\d+$/)) {
return str;
}
name = JSON.stringify('' + key);
if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
name = name.substr(1, name.length - 2);
name = ctx.stylize(name, 'name');
} else {
name = name.replace(/'/g, "\\'")
.replace(/\\"/g, '"')
.replace(/(^"|"$)/g, "'");
name = ctx.stylize(name, 'string');
}
}
return name + ': ' + str;
}
function reduceToSingleString(output, base, braces) {
var numLinesEst = 0;
var length = output.reduce(function(prev, cur) {
numLinesEst++;
if (cur.indexOf('\n') >= 0) numLinesEst++;
return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
}, 0);
if (length > 60) {
return braces[0] +
(base === '' ? '' : base + '\n ') +
' ' +
output.join(',\n ') +
' ' +
braces[1];
}
return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
}
// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.
function isArray(ar) {
return Array.isArray(ar);
}
exports.isArray = isArray;
function isBoolean(arg) {
return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;
function isNull(arg) {
return arg === null;
}
exports.isNull = isNull;
function isNullOrUndefined(arg) {
return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;
function isNumber(arg) {
return typeof arg === 'number';
}
exports.isNumber = isNumber;
function isString(arg) {
return typeof arg === 'string';
}
exports.isString = isString;
function isSymbol(arg) {
return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;
function isUndefined(arg) {
return arg === void 0;
}
exports.isUndefined = isUndefined;
function isRegExp(re) {
return isObject(re) && objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;
function isObject(arg) {
return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;
function isDate(d) {
return isObject(d) && objectToString(d) === '[object Date]';
}
exports.isDate = isDate;
function isError(e) {
return isObject(e) &&
(objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;
function isFunction(arg) {
return typeof arg === 'function';
}
exports.isFunction = isFunction;
function isPrimitive(arg) {
return arg === null ||
typeof arg === 'boolean' ||
typeof arg === 'number' ||
typeof arg === 'string' ||
typeof arg === 'symbol' || // ES6 symbol
typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;
exports.isBuffer = require('./support/isBuffer');
function objectToString(o) {
return Object.prototype.toString.call(o);
}
function pad(n) {
return n < 10 ? '0' + n.toString(10) : n.toString(10);
}
var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
'Oct', 'Nov', 'Dec'];
// 26 Feb 16:19:34
function timestamp() {
var d = new Date();
var time = [pad(d.getHours()),
pad(d.getMinutes()),
pad(d.getSeconds())].join(':');
return [d.getDate(), months[d.getMonth()], time].join(' ');
}
// log is just a thin wrapper to console.log that prepends a timestamp
exports.log = function() {
console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
};
/**
* Inherit the prototype methods from one constructor into another.
*
* The Function.prototype.inherits from lang.js rewritten as a standalone
* function (not on Function.prototype). NOTE: If this file is to be loaded
* during bootstrapping this function needs to be rewritten using some native
* functions as prototype setup using normal JavaScript does not work as
* expected during bootstrapping (see mirror.js in r114903).
*
* @param {function} ctor Constructor function which needs to inherit the
* prototype.
* @param {function} superCtor Constructor function to inherit prototype from.
*/
exports.inherits = require('inherits');
exports._extend = function(origin, add) {
// Don't do anything if add isn't an object
if (!add || !isObject(add)) return origin;
var keys = Object.keys(add);
var i = keys.length;
while (i--) {
origin[keys[i]] = add[keys[i]];
}
return origin;
};
function hasOwnProperty(obj, prop) {
return Object.prototype.hasOwnProperty.call(obj, prop);
}
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./support/isBuffer":17,"_process":16,"inherits":15}],19:[function(require,module,exports){
(function (global){
/**
* @license
* Lo-Dash 2.4.1 (Custom Build) <http://lodash.com/>
* Build: `lodash modern -o ./dist/lodash.js`
* Copyright 2012-2013 The Dojo Foundation <http://dojofoundation.org/>
* Based on Underscore.js 1.5.2 <http://underscorejs.org/LICENSE>
* Copyright 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
* Available under MIT license <http://lodash.com/license>
*/
;(function() {
/** Used as a safe reference for `undefined` in pre ES5 environments */
var undefined;
/** Used to pool arrays and objects used internally */
var arrayPool = [],
objectPool = [];
/** Used to generate unique IDs */
var idCounter = 0;
/** Used to prefix keys to avoid issues with `__proto__` and properties on `Object.prototype` */
var keyPrefix = +new Date + '';
/** Used as the size when optimizations are enabled for large arrays */
var largeArraySize = 75;
/** Used as the max size of the `arrayPool` and `objectPool` */
var maxPoolSize = 40;
/** Used to detect and test whitespace */
var whitespace = (
// whitespace
' \t\x0B\f\xA0\ufeff' +
// line terminators
'\n\r\u2028\u2029' +
// unicode category "Zs" space separators
'\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000'
);
/** 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 ES6 template delimiters
* http://people.mozilla.org/~jorendorff/es6-draft.html#sec-literals-string-literals
*/
var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
/** Used to match regexp flags from their coerced string values */
var reFlags = /\w*$/;
/** Used to detected named functions */
var reFuncName = /^\s*function[ \n\r\t]+\w/;
/** Used to match "interpolate" template delimiters */
var reInterpolate = /<%=([\s\S]+?)%>/g;
/** Used to match leading whitespace and zeros to be removed */
var reLeadingSpacesAndZeros = RegExp('^[' + whitespace + ']*0+(?=.$)');
/** Used to ensure capturing order of template delimiters */
var reNoMatch = /($^)/;
/** Used to detect functions containing a `this` reference */
var reThis = /\bthis\b/;
/** Used to match unescaped characters in compiled string literals */
var reUnescapedString = /['\n\r\t\u2028\u2029\\]/g;
/** Used to assign default `context` object properties */
var contextProps = [
'Array', 'Boolean', 'Date', 'Function', 'Math', 'Number', 'Object',
'RegExp', 'String', '_', 'attachEvent', 'clearTimeout', 'isFinite', 'isNaN',
'parseInt', 'setTimeout'
];
/** Used to make template sourceURLs easier to identify */
var templateCounter = 0;
/** `Object#toString` result shortcuts */
var argsClass = '[object Arguments]',
arrayClass = '[object Array]',
boolClass = '[object Boolean]',
dateClass = '[object Date]',
funcClass = '[object Function]',
numberClass = '[object Number]',
objectClass = '[object Object]',
regexpClass = '[object RegExp]',
stringClass = '[object String]';
/** Used to identify object classifications that `_.clone` supports */
var cloneableClasses = {};
cloneableClasses[funcClass] = false;
cloneableClasses[argsClass] = cloneableClasses[arrayClass] =
cloneableClasses[boolClass] = cloneableClasses[dateClass] =
cloneableClasses[numberClass] = cloneableClasses[objectClass] =
cloneableClasses[regexpClass] = cloneableClasses[stringClass] = true;
/** Used as an internal `_.debounce` options object */
var debounceOptions = {
'leading': false,
'maxWait': 0,
'trailing': false
};
/** Used as the property descriptor for `__bindData__` */
var descriptor = {
'configurable': false,
'enumerable': false,
'value': null,
'writable': false
};
/** Used to determine if values are of the language type Object */
var objectTypes = {
'boolean': false,
'function': true,
'object': true,
'number': false,
'string': false,
'undefined': false
};
/** Used to escape characters for inclusion in compiled string literals */
var stringEscapes = {
'\\': '\\',
"'": "'",
'\n': 'n',
'\r': 'r',
'\t': 't',
'\u2028': 'u2028',
'\u2029': 'u2029'
};
/** Used as a reference to the global object */
var root = (objectTypes[typeof window] && window) || this;
/** 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 the popular CommonJS extension `module.exports` */
var moduleExports = freeModule && freeModule.exports === freeExports && freeExports;
/** Detect free variable `global` from Node.js or Browserified code and use it as `root` */
var freeGlobal = objectTypes[typeof global] && global;
if (freeGlobal && (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal)) {
root = freeGlobal;
}
/*--------------------------------------------------------------------------*/
/**
* The base implementation of `_.indexOf` without support for binary searches
* or `fromIndex` constraints.
*
* @private
* @param {Array} array The array to search.
* @param {*} value The value to search for.
* @param {number} [fromIndex=0] The index to search from.
* @returns {number} Returns the index of the matched value or `-1`.
*/
function baseIndexOf(array, value, fromIndex) {
var index = (fromIndex || 0) - 1,
length = array ? array.length : 0;
while (++index < length) {
if (array[index] === value) {
return index;
}
}
return -1;
}
/**
* An implementation of `_.contains` for cache objects that mimics the return
* signature of `_.indexOf` by returning `0` if the value is found, else `-1`.
*
* @private
* @param {Object} cache The cache object to inspect.
* @param {*} value The value to search for.
* @returns {number} Returns `0` if `value` is found, else `-1`.
*/
function cacheIndexOf(cache, value) {
var type = typeof value;
cache = cache.cache;
if (type == 'boolean' || value == null) {
return cache[value] ? 0 : -1;
}
if (type != 'number' && type != 'string') {
type = 'object';
}
var key = type == 'number' ? value : keyPrefix + value;
cache = (cache = cache[type]) && cache[key];
return type == 'object'
? (cache && baseIndexOf(cache, value) > -1 ? 0 : -1)
: (cache ? 0 : -1);
}
/**
* Adds a given value to the corresponding cache object.
*
* @private
* @param {*} value The value to add to the cache.
*/
function cachePush(value) {
var cache = this.cache,
type = typeof value;
if (type == 'boolean' || value == null) {
cache[value] = true;
} else {
if (type != 'number' && type != 'string') {
type = 'object';
}
var key = type == 'number' ? value : keyPrefix + value,
typeCache = cache[type] || (cache[type] = {});
if (type == 'object') {
(typeCache[key] || (typeCache[key] = [])).push(value);
} else {
typeCache[key] = true;
}
}
}
/**
* Used by `_.max` and `_.min` as the default callback when a given
* collection is a string value.
*
* @private
* @param {string} value The character to inspect.
* @returns {number} Returns the code unit of given character.
*/
function charAtCallback(value) {
return value.charCodeAt(0);
}
/**
* Used by `sortBy` to compare transformed `collection` elements, stable sorting
* them in ascending order.
*
* @private
* @param {Object} a The object to compare to `b`.
* @param {Object} b The object to compare to `a`.
* @returns {number} Returns the sort order indicator of `1` or `-1`.
*/
function compareAscending(a, b) {
var ac = a.criteria,
bc = b.criteria,
index = -1,
length = ac.length;
while (++index < length) {
var value = ac[index],
other = bc[index];
if (value !== other) {
if (value > other || typeof value == 'undefined') {
return 1;
}
if (value < other || typeof other == 'undefined') {
return -1;
}
}
}
// Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
// that causes it, under certain circumstances, to return the same value for
// `a` and `b`. See https://github.com/jashkenas/underscore/pull/1247
//
// This also ensures a stable sort in V8 and other engines.
// See http://code.google.com/p/v8/issues/detail?id=90
return a.index - b.index;
}
/**
* Creates a cache object to optimize linear searches of large arrays.
*
* @private
* @param {Array} [array=[]] The array to search.
* @returns {null|Object} Returns the cache object or `null` if caching should not be used.
*/
function createCache(array) {
var index = -1,
length = array.length,
first = array[0],
mid = array[(length / 2) | 0],
last = array[length - 1];
if (first && typeof first == 'object' &&
mid && typeof mid == 'object' && last && typeof last == 'object') {
return false;
}
var cache = getObject();
cache['false'] = cache['null'] = cache['true'] = cache['undefined'] = false;
var result = getObject();
result.array = array;
result.cache = cache;
result.push = cachePush;
while (++index < length) {
result.push(array[index]);
}
return result;
}
/**
* Used by `template` to escape characters for inclusion in compiled
* string literals.
*
* @private
* @param {string} match The matched character to escape.
* @returns {string} Returns the escaped character.
*/
function escapeStringChar(match) {
return '\\' + stringEscapes[match];
}
/**
* Gets an array from the array pool or creates a new one if the pool is empty.
*
* @private
* @returns {Array} The array from the pool.
*/
function getArray() {
return arrayPool.pop() || [];
}
/**
* Gets an object from the object pool or creates a new one if the pool is empty.
*
* @private
* @returns {Object} The object from the pool.
*/
function getObject() {
return objectPool.pop() || {
'array': null,
'cache': null,
'criteria': null,
'false': false,
'index': 0,
'null': false,
'number': null,
'object': null,
'push': null,
'string': null,
'true': false,
'undefined': false,
'value': null
};
}
/**
* Releases the given array back to the array pool.
*
* @private
* @param {Array} [array] The array to release.
*/
function releaseArray(array) {
array.length = 0;
if (arrayPool.length < maxPoolSize) {
arrayPool.push(array);
}
}
/**
* Releases the given object back to the object pool.
*
* @private
* @param {Object} [object] The object to release.
*/
function releaseObject(object) {
var cache = object.cache;
if (cache) {
releaseObject(cache);
}
object.array = object.cache = object.criteria = object.object = object.number = object.string = object.value = null;
if (objectPool.length < maxPoolSize) {
objectPool.push(object);
}
}
/**
* Slices the `collection` from the `start` index up to, but not including,
* the `end` index.
*
* Note: This function is used instead of `Array#slice` to support node lists
* in IE < 9 and to ensure dense arrays are returned.
*
* @private
* @param {Array|Object|string} collection The collection to slice.
* @param {number} start The start index.
* @param {number} end The end index.
* @returns {Array} Returns the new array.
*/
function slice(array, start, end) {
start || (start = 0);
if (typeof end == 'undefined') {
end = array ? array.length : 0;
}
var index = -1,
length = end - start || 0,
result = Array(length < 0 ? 0 : length);
while (++index < length) {
result[index] = array[start + index];
}
return result;
}
/*--------------------------------------------------------------------------*/
/**
* Create a new `lodash` function using the given context object.
*
* @static
* @memberOf _
* @category Utilities
* @param {Object} [context=root] The context object.
* @returns {Function} Returns the `lodash` function.
*/
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 http://es5.github.io/#x11.1.5.
context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root;
/** Native constructor references */
var Array = context.Array,
Boolean = context.Boolean,
Date = context.Date,
Function = context.Function,
Math = context.Math,
Number = context.Number,
Object = context.Object,
RegExp = context.RegExp,
String = context.String,
TypeError = context.TypeError;
/**
* Used for `Array` method references.
*
* Normally `Array.prototype` would suffice, however, using an array literal
* avoids issues in Narwhal.
*/
var arrayRef = [];
/** Used for native method references */
var objectProto = Object.prototype;
/** Used to restore the original `_` reference in `noConflict` */
var oldDash = context._;
/** Used to resolve the internal [[Class]] of values */
var toString = objectProto.toString;
/** Used to detect if a method is native */
var reNative = RegExp('^' +
String(toString)
.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
.replace(/toString| for [^\]]+/g, '.*?') + '$'
);
/** Native method shortcuts */
var ceil = Math.ceil,
clearTimeout = context.clearTimeout,
floor = Math.floor,
fnToString = Function.prototype.toString,
getPrototypeOf = isNative(getPrototypeOf = Object.getPrototypeOf) && getPrototypeOf,
hasOwnProperty = objectProto.hasOwnProperty,
push = arrayRef.push,
setTimeout = context.setTimeout,
splice = arrayRef.splice,
unshift = arrayRef.unshift;
/** Used to set meta data on functions */
var defineProperty = (function() {
// IE 8 only accepts DOM elements
try {
var o = {},
func = isNative(func = Object.defineProperty) && func,
result = func(o, o, o) && func;
} catch(e) { }
return result;
}());
/* Native method shortcuts for methods with the same name as other `lodash` methods */
var nativeCreate = isNative(nativeCreate = Object.create) && nativeCreate,
nativeIsArray = isNative(nativeIsArray = Array.isArray) && nativeIsArray,
nativeIsFinite = context.isFinite,
nativeIsNaN = context.isNaN,
nativeKeys = isNative(nativeKeys = Object.keys) && nativeKeys,
nativeMax = Math.max,
nativeMin = Math.min,
nativeParseInt = context.parseInt,
nativeRandom = Math.random;
/** Used to lookup a built-in constructor by [[Class]] */
var ctorByClass = {};
ctorByClass[arrayClass] = Array;
ctorByClass[boolClass] = Boolean;
ctorByClass[dateClass] = Date;
ctorByClass[funcClass] = Function;
ctorByClass[objectClass] = Object;
ctorByClass[numberClass] = Number;
ctorByClass[regexpClass] = RegExp;
ctorByClass[stringClass] = String;
/*--------------------------------------------------------------------------*/
/**
* Creates a `lodash` object which wraps the given value to enable intuitive
* method chaining.
*
* In addition to Lo-Dash methods, wrappers also have the following `Array` methods:
* `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`, `splice`,
* and `unshift`
*
* Chaining is supported in custom builds as long as the `value` method is
* implicitly or explicitly included in the build.
*
* The chainable wrapper functions are:
* `after`, `assign`, `bind`, `bindAll`, `bindKey`, `chain`, `compact`,
* `compose`, `concat`, `countBy`, `create`, `createCallback`, `curry`,
* `debounce`, `defaults`, `defer`, `delay`, `difference`, `filter`, `flatten`,
* `forEach`, `forEachRight`, `forIn`, `forInRight`, `forOwn`, `forOwnRight`,
* `functions`, `groupBy`, `indexBy`, `initial`, `intersection`, `invert`,
* `invoke`, `keys`, `map`, `max`, `memoize`, `merge`, `min`, `object`, `omit`,
* `once`, `pairs`, `partial`, `partialRight`, `pick`, `pluck`, `pull`, `push`,
* `range`, `reject`, `remove`, `rest`, `reverse`, `shuffle`, `slice`, `sort`,
* `sortBy`, `splice`, `tap`, `throttle`, `times`, `toArray`, `transform`,
* `union`, `uniq`, `unshift`, `unzip`, `values`, `where`, `without`, `wrap`,
* and `zip`
*
* The non-chainable wrapper functions are:
* `clone`, `cloneDeep`, `contains`, `escape`, `every`, `find`, `findIndex`,
* `findKey`, `findLast`, `findLastIndex`, `findLastKey`, `has`, `identity`,
* `indexOf`, `isArguments`, `isArray`, `isBoolean`, `isDate`, `isElement`,
* `isEmpty`, `isEqual`, `isFinite`, `isFunction`, `isNaN`, `isNull`, `isNumber`,
* `isObject`, `isPlainObject`, `isRegExp`, `isString`, `isUndefined`, `join`,
* `lastIndexOf`, `mixin`, `noConflict`, `parseInt`, `pop`, `random`, `reduce`,
* `reduceRight`, `result`, `shift`, `size`, `some`, `sortedIndex`, `runInContext`,
* `template`, `unescape`, `uniqueId`, and `value`
*
* The wrapper functions `first` and `last` return wrapped values when `n` is
* provided, otherwise they return unwrapped values.
*
* Explicit chaining can be enabled by using the `_.chain` method.
*
* @name _
* @constructor
* @category Chaining
* @param {*} value The value to wrap in a `lodash` instance.
* @returns {Object} Returns a `lodash` instance.
* @example
*
* var wrapped = _([1, 2, 3]);
*
* // returns an unwrapped value
* wrapped.reduce(function(sum, num) {
* return sum + num;
* });
* // => 6
*
* // returns a wrapped value
* var squares = wrapped.map(function(num) {
* return num * num;
* });
*
* _.isArray(squares);
* // => false
*
* _.isArray(squares.value());
* // => true
*/
function lodash(value) {
// don't wrap if already wrapped, even if wrapped by a different `lodash` constructor
return (value && typeof value == 'object' && !isArray(value) && hasOwnProperty.call(value, '__wrapped__'))
? value
: new lodashWrapper(value);
}
/**
* A fast path for creating `lodash` wrapper objects.
*
* @private
* @param {*} value The value to wrap in a `lodash` instance.
* @param {boolean} chainAll A flag to enable chaining for all methods
* @returns {Object} Returns a `lodash` instance.
*/
function lodashWrapper(value, chainAll) {
this.__chain__ = !!chainAll;
this.__wrapped__ = value;
}
// ensure `new lodashWrapper` is an instance of `lodash`
lodashWrapper.prototype = lodash.prototype;
/**
* An object used to flag environments features.
*
* @static
* @memberOf _
* @type Object
*/
var support = lodash.support = {};
/**
* Detect if functions can be decompiled by `Function#toString`
* (all but PS3 and older Opera mobile browsers & avoided in Windows 8 apps).
*
* @memberOf _.support
* @type boolean
*/
support.funcDecomp = !isNative(context.WinRTError) && reThis.test(runInContext);
/**
* Detect if `Function#name` is supported (all but IE).
*
* @memberOf _.support
* @type boolean
*/
support.funcNames = typeof Function.name == 'string';
/**
* By default, the template delimiters used by Lo-Dash are similar to 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': /<%-([\s\S]+?)%>/g,
/**
* Used to detect code to be evaluated.
*
* @memberOf _.templateSettings
* @type RegExp
*/
'evaluate': /<%([\s\S]+?)%>/g,
/**
* 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
}
};
/*--------------------------------------------------------------------------*/
/**
* The base implementation of `_.bind` that creates the bound function and
* sets its meta data.
*
* @private
* @param {Array} bindData The bind data array.
* @returns {Function} Returns the new bound function.
*/
function baseBind(bindData) {
var func = bindData[0],
partialArgs = bindData[2],
thisArg = bindData[4];
function bound() {
// `Function#bind` spec
// http://es5.github.io/#x15.3.4.5
if (partialArgs) {
// avoid `arguments` object deoptimizations by using `slice` instead
// of `Array.prototype.slice.call` and not assigning `arguments` to a
// variable as a ternary expression
var args = slice(partialArgs);
push.apply(args, arguments);
}
// mimic the constructor's `return` behavior
// http://es5.github.io/#x13.2.2
if (this instanceof bound) {
// ensure `new bound` is an instance of `func`
var thisBinding = baseCreate(func.prototype),
result = func.apply(thisBinding, args || arguments);
return isObject(result) ? result : thisBinding;
}
return func.apply(thisArg, args || arguments);
}
setBindData(bound, bindData);
return bound;
}
/**
* The base implementation of `_.clone` without argument juggling or support
* for `thisArg` binding.
*
* @private
* @param {*} value The value to clone.
* @param {boolean} [isDeep=false] Specify a deep clone.
* @param {Function} [callback] The function to customize cloning values.
* @param {Array} [stackA=[]] Tracks traversed source objects.
* @param {Array} [stackB=[]] Associates clones with source counterparts.
* @returns {*} Returns the cloned value.
*/
function baseClone(value, isDeep, callback, stackA, stackB) {
if (callback) {
var result = callback(value);
if (typeof result != 'undefined') {
return result;
}
}
// inspect [[Class]]
var isObj = isObject(value);
if (isObj) {
var className = toString.call(value);
if (!cloneableClasses[className]) {
return value;
}
var ctor = ctorByClass[className];
switch (className) {
case boolClass:
case dateClass:
return new ctor(+value);
case numberClass:
case stringClass:
return new ctor(value);
case regexpClass:
result = ctor(value.source, reFlags.exec(value));
result.lastIndex = value.lastIndex;
return result;
}
} else {
return value;
}
var isArr = isArray(value);
if (isDeep) {
// check for circular references and return corresponding clone
var initedStack = !stackA;
stackA || (stackA = getArray());
stackB || (stackB = getArray());
var length = stackA.length;
while (length--) {
if (stackA[length] == value) {
return stackB[length];
}
}
result = isArr ? ctor(value.length) : {};
}
else {
result = isArr ? slice(value) : assign({}, value);
}
// add array properties assigned by `RegExp#exec`
if (isArr) {
if (hasOwnProperty.call(value, 'index')) {
result.index = value.index;
}
if (hasOwnProperty.call(value, 'input')) {
result.input = value.input;
}
}
// exit for shallow clone
if (!isDeep) {
return result;
}
// 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 ? forEach : forOwn)(value, function(objValue, key) {
result[key] = baseClone(objValue, isDeep, callback, stackA, stackB);
});
if (initedStack) {
releaseArray(stackA);
releaseArray(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.
*/
function baseCreate(prototype, properties) {
return isObject(prototype) ? nativeCreate(prototype) : {};
}
// fallback for browsers without `Object.create`
if (!nativeCreate) {
baseCreate = (function() {
function Object() {}
return function(prototype) {
if (isObject(prototype)) {
Object.prototype = prototype;
var result = new Object;
Object.prototype = null;
}
return result || context.Object();
};
}());
}
/**
* The base implementation of `_.createCallback` without support for creating
* "_.pluck" or "_.where" style callbacks.
*
* @private
* @param {*} [func=identity] The value to convert to a callback.
* @param {*} [thisArg] The `this` binding of the created callback.
* @param {number} [argCount] The number of arguments the callback accepts.
* @returns {Function} Returns a callback function.
*/
function baseCreateCallback(func, thisArg, argCount) {
if (typeof func != 'function') {
return identity;
}
// exit early for no `thisArg` or already bound by `Function#bind`
if (typeof thisArg == 'undefined' || !('prototype' in func)) {
return func;
}
var bindData = func.__bindData__;
if (typeof bindData == 'undefined') {
if (support.funcNames) {
bindData = !func.name;
}
bindData = bindData || !support.funcDecomp;
if (!bindData) {
var source = fnToString.call(func);
if (!support.funcNames) {
bindData = !reFuncName.test(source);
}
if (!bindData) {
// checks if `func` references the `this` keyword and stores the result
bindData = reThis.test(source);
setBindData(func, bindData);
}
}
}
// exit early if there are no `this` references or `func` is bound
if (bindData === false || (bindData !== true && bindData[1] & 1)) {
return func;
}
switch (argCount) {
case 1: return function(value) {
return func.call(thisArg, value);
};
case 2: return function(a, b) {
return func.call(thisArg, a, b);
};
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);
};
}
return bind(func, thisArg);
}
/**
* The base implementation of `createWrapper` that creates the wrapper and
* sets its meta data.
*
* @private
* @param {Array} bindData The bind data array.
* @returns {Function} Returns the new function.
*/
function baseCreateWrapper(bindData) {
var func = bindData[0],
bitmask = bindData[1],
partialArgs = bindData[2],
partialRightArgs = bindData[3],
thisArg = bindData[4],
arity = bindData[5];
var isBind = bitmask & 1,
isBindKey = bitmask & 2,
isCurry = bitmask & 4,
isCurryBound = bitmask & 8,
key = func;
function bound() {
var thisBinding = isBind ? thisArg : this;
if (partialArgs) {
var args = slice(partialArgs);
push.apply(args, arguments);
}
if (partialRightArgs || isCurry) {
args || (args = slice(arguments));
if (partialRightArgs) {
push.apply(args, partialRightArgs);
}
if (isCurry && args.length < arity) {
bitmask |= 16 & ~32;
return baseCreateWrapper([func, (isCurryBound ? bitmask : bitmask & ~3), args, null, thisArg, arity]);
}
}
args || (args = arguments);
if (isBindKey) {
func = thisBinding[key];
}
if (this instanceof bound) {
thisBinding = baseCreate(func.prototype);
var result = func.apply(thisBinding, args);
return isObject(result) ? result : thisBinding;
}
return func.apply(thisBinding, args);
}
setBindData(bound, bindData);
return bound;
}
/**
* The base implementation of `_.difference` that accepts a single array
* of values to exclude.
*
* @private
* @param {Array} array The array to process.
* @param {Array} [values] The array of values to exclude.
* @returns {Array} Returns a new array of filtered values.
*/
function baseDifference(array, values) {
var index = -1,
indexOf = getIndexOf(),
length = array ? array.length : 0,
isLarge = length >= largeArraySize && indexOf === baseIndexOf,
result = [];
if (isLarge) {
var cache = createCache(values);
if (cache) {
indexOf = cacheIndexOf;
values = cache;
} else {
isLarge = false;
}
}
while (++index < length) {
var value = array[index];
if (indexOf(values, value) < 0) {
result.push(value);
}
}
if (isLarge) {
releaseObject(values);
}
return result;
}
/**
* The base implementation of `_.flatten` without support for callback
* shorthands or `thisArg` binding.
*
* @private
* @param {Array} array The array to flatten.
* @param {boolean} [isShallow=false] A flag to restrict flattening to a single level.
* @param {boolean} [isStrict=false] A flag to restrict flattening to arrays and `arguments` objects.
* @param {number} [fromIndex=0] The index to start from.
* @returns {Array} Returns a new flattened array.
*/
function baseFlatten(array, isShallow, isStrict, fromIndex) {
var index = (fromIndex || 0) - 1,
length = array ? array.length : 0,
result = [];
while (++index < length) {
var value = array[index];
if (value && typeof value == 'object' && typeof value.length == 'number'
&& (isArray(value) || isArguments(value))) {
// recursively flatten arrays (susceptible to call stack limits)
if (!isShallow) {
value = baseFlatten(value, isShallow, isStrict);
}
var valIndex = -1,
valLength = value.length,
resIndex = result.length;
result.length += valLength;
while (++valIndex < valLength) {
result[resIndex++] = value[valIndex];
}
} else if (!isStrict) {
result.push(value);
}
}
return result;
}
/**
* The base implementation of `_.isEqual`, without support for `thisArg` binding,
* that allows partial "_.where" style comparisons.
*
* @private
* @param {*} a The value to compare.
* @param {*} b The other value to compare.
* @param {Function} [callback] The function to customize comparing values.
* @param {Function} [isWhere=false] A flag to indicate performing partial comparisons.
* @param {Array} [stackA=[]] Tracks traversed `a` objects.
* @param {Array} [stackB=[]] Tracks traversed `b` objects.
* @returns {boolean} Returns `true` if the values are equivalent, else `false`.
*/
function baseIsEqual(a, b, callback, isWhere, stackA, stackB) {
// used to indicate that when comparing objects, `a` has at least the properties of `b`
if (callback) {
var result = callback(a, b);
if (typeof result != 'undefined') {
return !!result;
}
}
// exit early for identical values
if (a === b) {
// treat `+0` vs. `-0` as not equal
return a !== 0 || (1 / a == 1 / b);
}
var type = typeof a,
otherType = typeof b;
// exit early for unlike primitive values
if (a === a &&
!(a && objectTypes[type]) &&
!(b && objectTypes[otherType])) {
return false;
}
// exit early for `null` and `undefined` avoiding ES3's Function#call behavior
// http://es5.github.io/#x15.3.4.4
if (a == null || b == null) {
return a === b;
}
// compare [[Class]] names
var className = toString.call(a),
otherClass = toString.call(b);
if (className == argsClass) {
className = objectClass;
}
if (otherClass == argsClass) {
otherClass = objectClass;
}
if (className != otherClass) {
return false;
}
switch (className) {
case boolClass:
case dateClass:
// 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 +a == +b;
case numberClass:
// treat `NaN` vs. `NaN` as equal
return (a != +a)
? b != +b
// but treat `+0` vs. `-0` as not equal
: (a == 0 ? (1 / a == 1 / b) : a == +b);
case regexpClass:
case stringClass:
// coerce regexes to strings (http://es5.github.io/#x15.10.6.4)
// treat string primitives and their corresponding object instances as equal
return a == String(b);
}
var isArr = className == arrayClass;
if (!isArr) {
// unwrap any `lodash` wrapped values
var aWrapped = hasOwnProperty.call(a, '__wrapped__'),
bWrapped = hasOwnProperty.call(b, '__wrapped__');
if (aWrapped || bWrapped) {
return baseIsEqual(aWrapped ? a.__wrapped__ : a, bWrapped ? b.__wrapped__ : b, callback, isWhere, stackA, stackB);
}
// exit for functions and DOM nodes
if (className != objectClass) {
return false;
}
// in older versions of Opera, `arguments` objects have `Array` constructors
var ctorA = a.constructor,
ctorB = b.constructor;
// non `Object` object instances with different constructors are not equal
if (ctorA != ctorB &&
!(isFunction(ctorA) && ctorA instanceof ctorA && isFunction(ctorB) && ctorB instanceof ctorB) &&
('constructor' in a && 'constructor' in b)
) {
return false;
}
}
// assume cyclic structures are equal
// the algorithm for detecting cyclic structures is adapted from ES 5.1
// section 15.12.3, abstract operation `JO` (http://es5.github.io/#x15.12.3)
var initedStack = !stackA;
stackA || (stackA = getArray());
stackB || (stackB = getArray());
var length = stackA.length;
while (length--) {
if (stackA[length] == a) {
return stackB[length] == b;
}
}
var size = 0;
result = true;
// add `a` and `b` to the stack of traversed objects
stackA.push(a);
stackB.push(b);
// recursively compare objects and arrays (susceptible to call stack limits)
if (isArr) {
// compare lengths to determine if a deep comparison is necessary
length = a.length;
size = b.length;
result = size == length;
if (result || isWhere) {
// deep compare the contents, ignoring non-numeric properties
while (size--) {
var index = length,
value = b[size];
if (isWhere) {
while (index--) {
if ((result = baseIsEqual(a[index], value, callback, isWhere, stackA, stackB))) {
break;
}
}
} else if (!(result = baseIsEqual(a[size], value, callback, isWhere, stackA, stackB))) {
break;
}
}
}
}
else {
// deep compare objects using `forIn`, instead of `forOwn`, to avoid `Object.keys`
// which, in this case, is more costly
forIn(b, function(value, key, b) {
if (hasOwnProperty.call(b, key)) {
// count the number of properties.
size++;
// deep compare each property value.
return (result = hasOwnProperty.call(a, key) && baseIsEqual(a[key], value, callback, isWhere, stackA, stackB));
}
});
if (result && !isWhere) {
// ensure both objects have the same number of properties
forIn(a, function(value, key, a) {
if (hasOwnProperty.call(a, key)) {
// `size` will be `-1` if `a` has more properties than `b`
return (result = --size > -1);
}
});
}
}
stackA.pop();
stackB.pop();
if (initedStack) {
releaseArray(stackA);
releaseArray(stackB);
}
return result;
}
/**
* The base implementation of `_.merge` without argument juggling or support
* for `thisArg` binding.
*
* @private
* @param {Object} object The destination object.
* @param {Object} source The source object.
* @param {Function} [callback] The function to customize merging properties.
* @param {Array} [stackA=[]] Tracks traversed source objects.
* @param {Array} [stackB=[]] Associates values with source counterparts.
*/
function baseMerge(object, source, callback, stackA, stackB) {
(isArray(source) ? forEach : forOwn)(source, function(source, key) {
var found,
isArr,
result = source,
value = object[key];
if (source && ((isArr = isArray(source)) || isPlainObject(source))) {
// avoid merging previously merged cyclic sources
var stackLength = stackA.length;
while (stackLength--) {
if ((found = stackA[stackLength] == source)) {
value = stackB[stackLength];
break;
}
}
if (!found) {
var isShallow;
if (callback) {
result = callback(value, source);
if ((isShallow = typeof result != 'undefined')) {
value = result;
}
}
if (!isShallow) {
value = isArr
? (isArray(value) ? value : [])
: (isPlainObject(value) ? value : {});
}
// add `source` and associated `value` to the stack of traversed objects
stackA.push(source);
stackB.push(value);
// recursively merge objects and arrays (susceptible to call stack limits)
if (!isShallow) {
baseMerge(value, source, callback, stackA, stackB);
}
}
}
else {
if (callback) {
result = callback(value, source);
if (typeof result == 'undefined') {
result = source;
}
}
if (typeof result != 'undefined') {
value = result;
}
}
object[key] = value;
});
}
/**
* The base implementation of `_.random` without argument juggling or support
* for returning floating-point numbers.
*
* @private
* @param {number} min The minimum possible value.
* @param {number} max The maximum possible value.
* @returns {number} Returns a random number.
*/
function baseRandom(min, max) {
return min + floor(nativeRandom() * (max - min + 1));
}
/**
* The base implementation of `_.uniq` without support for callback shorthands
* or `thisArg` binding.
*
* @private
* @param {Array} array The array to process.
* @param {boolean} [isSorted=false] A flag to indicate that `array` is sorted.
* @param {Function} [callback] The function called per iteration.
* @returns {Array} Returns a duplicate-value-free array.
*/
function baseUniq(array, isSorted, callback) {
var index = -1,
indexOf = getIndexOf(),
length = array ? array.length : 0,
result = [];
var isLarge = !isSorted && length >= largeArraySize && indexOf === baseIndexOf,
seen = (callback || isLarge) ? getArray() : result;
if (isLarge) {
var cache = createCache(seen);
indexOf = cacheIndexOf;
seen = cache;
}
while (++index < length) {
var value = array[index],
computed = callback ? callback(value, index, array) : value;
if (isSorted
? !index || seen[seen.length - 1] !== computed
: indexOf(seen, computed) < 0
) {
if (callback || isLarge) {
seen.push(computed);
}
result.push(value);
}
}
if (isLarge) {
releaseArray(seen.array);
releaseObject(seen);
} else if (callback) {
releaseArray(seen);
}
return result;
}
/**
* Creates a function that aggregates a collection, creating an object composed
* of keys generated from the results of running each element of the collection
* through a callback. The given `setter` function sets the keys and values
* of the composed object.
*
* @private
* @param {Function} setter The setter function.
* @returns {Function} Returns the new aggregator function.
*/
function createAggregator(setter) {
return function(collection, callback, thisArg) {
var result = {};
callback = lodash.createCallback(callback, thisArg, 3);
var index = -1,
length = collection ? collection.length : 0;
if (typeof length == 'number') {
while (++index < length) {
var value = collection[index];
setter(result, value, callback(value, index, collection), collection);
}
} else {
forOwn(collection, function(value, key, collection) {
setter(result, value, callback(value, key, collection), collection);
});
}
return result;
};
}
/**
* Creates a function that, when called, either curries or invokes `func`
* with an 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 method flags to compose.
* The bitmask may be composed of the following flags:
* 1 - `_.bind`
* 2 - `_.bindKey`
* 4 - `_.curry`
* 8 - `_.curry` (bound)
* 16 - `_.partial`
* 32 - `_.partialRight`
* @param {Array} [partialArgs] An array of arguments to prepend to those
* provided to the new function.
* @param {Array} [partialRightArgs] An array of arguments to append to those
* provided to the new function.
* @param {*} [thisArg] The `this` binding of `func`.
* @param {number} [arity] The arity of `func`.
* @returns {Function} Returns the new function.
*/
function createWrapper(func, bitmask, partialArgs, partialRightArgs, thisArg, arity) {
var isBind = bitmask & 1,
isBindKey = bitmask & 2,
isCurry = bitmask & 4,
isCurryBound = bitmask & 8,
isPartial = bitmask & 16,
isPartialRight = bitmask & 32;
if (!isBindKey && !isFunction(func)) {
throw new TypeError;
}
if (isPartial && !partialArgs.length) {
bitmask &= ~16;
isPartial = partialArgs = false;
}
if (isPartialRight && !partialRightArgs.length) {
bitmask &= ~32;
isPartialRight = partialRightArgs = false;
}
var bindData = func && func.__bindData__;
if (bindData && bindData !== true) {
// clone `bindData`
bindData = slice(bindData);
if (bindData[2]) {
bindData[2] = slice(bindData[2]);
}
if (bindData[3]) {
bindData[3] = slice(bindData[3]);
}
// set `thisBinding` is not previously bound
if (isBind && !(bindData[1] & 1)) {
bindData[4] = thisArg;
}
// set if previously bound but not currently (subsequent curried functions)
if (!isBind && bindData[1] & 1) {
bitmask |= 8;
}
// set curried arity if not yet set
if (isCurry && !(bindData[1] & 4)) {
bindData[5] = arity;
}
// append partial left arguments
if (isPartial) {
push.apply(bindData[2] || (bindData[2] = []), partialArgs);
}
// append partial right arguments
if (isPartialRight) {
unshift.apply(bindData[3] || (bindData[3] = []), partialRightArgs);
}
// merge flags
bindData[1] |= bitmask;
return createWrapper.apply(null, bindData);
}
// fast path for `_.bind`
var creater = (bitmask == 1 || bitmask === 17) ? baseBind : baseCreateWrapper;
return creater([func, bitmask, partialArgs, partialRightArgs, thisArg, arity]);
}
/**
* Used by `escape` to convert characters to HTML entities.
*
* @private
* @param {string} match The matched character to escape.
* @returns {string} Returns the escaped character.
*/
function escapeHtmlChar(match) {
return htmlEscapes[match];
}
/**
* Gets the appropriate "indexOf" function. If the `_.indexOf` method is
* customized, this method returns the custom method, otherwise it returns
* the `baseIndexOf` function.
*
* @private
* @returns {Function} Returns the "indexOf" function.
*/
function getIndexOf() {
var result = (result = lodash.indexOf) === indexOf ? baseIndexOf : result;
return result;
}
/**
* Checks if `value` is a native function.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the `value` is a native function, else `false`.
*/
function isNative(value) {
return typeof value == 'function' && reNative.test(value);
}
/**
* Sets `this` binding data on a given function.
*
* @private
* @param {Function} func The function to set data on.
* @param {Array} value The data array to set.
*/
var setBindData = !defineProperty ? noop : function(func, value) {
descriptor.value = value;
defineProperty(func, '__bindData__', descriptor);
};
/**
* A fallback implementation of `isPlainObject` which checks if a given value
* is an object created by the `Object` constructor, assuming objects created
* by the `Object` constructor have no inherited enumerable properties and that
* there are no `Object.prototype` extensions.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
*/
function shimIsPlainObject(value) {
var ctor,
result;
// avoid non Object objects, `arguments` objects, and DOM elements
if (!(value && toString.call(value) == objectClass) ||
(ctor = value.constructor, isFunction(ctor) && !(ctor instanceof ctor))) {
return false;
}
// 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.
forIn(value, function(value, key) {
result = key;
});
return typeof result == 'undefined' || hasOwnProperty.call(value, result);
}
/**
* Used by `unescape` to convert HTML entities to characters.
*
* @private
* @param {string} match The matched character to unescape.
* @returns {string} Returns the unescaped character.
*/
function unescapeHtmlChar(match) {
return htmlUnescapes[match];
}
/*--------------------------------------------------------------------------*/
/**
* Checks if `value` is an `arguments` object.
*
* @static
* @memberOf _
* @category Objects
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the `value` is an `arguments` object, else `false`.
* @example
*
* (function() { return _.isArguments(arguments); })(1, 2, 3);
* // => true
*
* _.isArguments([1, 2, 3]);
* // => false
*/
function isArguments(value) {
return value && typeof value == 'object' && typeof value.length == 'number' &&
toString.call(value) == argsClass || false;
}
/**
* Checks if `value` is an array.
*
* @static
* @memberOf _
* @type Function
* @category Objects
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the `value` is an array, else `false`.
* @example
*
* (function() { return _.isArray(arguments); })();
* // => false
*
* _.isArray([1, 2, 3]);
* // => true
*/
var isArray = nativeIsArray || function(value) {
return value && typeof value == 'object' && typeof value.length == 'number' &&
toString.call(value) == arrayClass || false;
};
/**
* A fallback implementation of `Object.keys` which produces an array of the
* given object's own enumerable property names.
*
* @private
* @type Function
* @param {Object} object The object to inspect.
* @returns {Array} Returns an array of property names.
*/
var shimKeys = function(object) {
var index, iterable = object, result = [];
if (!iterable) return result;
if (!(objectTypes[typeof object])) return result;
for (index in iterable) {
if (hasOwnProperty.call(iterable, index)) {
result.push(index);
}
}
return result
};
/**
* Creates an array composed of the own enumerable property names of an object.
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The object to inspect.
* @returns {Array} Returns an array of property names.
* @example
*
* _.keys({ 'one': 1, 'two': 2, 'three': 3 });
* // => ['one', 'two', 'three'] (property order is not guaranteed across environments)
*/
var keys = !nativeKeys ? shimKeys : function(object) {
if (!isObject(object)) {
return [];
}
return nativeKeys(object);
};
/**
* Used to convert characters to HTML entities:
*
* Though the `>` character is escaped for symmetry, characters like `>` and `/`
* don't require escaping in HTML and have no special meaning unless they're part
* of a tag or an unquoted attribute value.
* http://mathiasbynens.be/notes/ambiguous-ampersands (under "semi-related fun fact")
*/
var htmlEscapes = {
'&': '&amp;',
'<': '&lt;',
'>': '&gt;',
'"': '&quot;',
"'": '&#39;'
};
/** Used to convert HTML entities to characters */
var htmlUnescapes = invert(htmlEscapes);
/** Used to match HTML entities and HTML characters */
var reEscapedHtml = RegExp('(' + keys(htmlUnescapes).join('|') + ')', 'g'),
reUnescapedHtml = RegExp('[' + keys(htmlEscapes).join('') + ']', 'g');
/*--------------------------------------------------------------------------*/
/**
* Assigns own enumerable properties of source object(s) to the destination
* object. Subsequent sources will overwrite property assignments of previous
* sources. If a callback is provided it will be executed to produce the
* assigned values. The callback is bound to `thisArg` and invoked with two
* arguments; (objectValue, sourceValue).
*
* @static
* @memberOf _
* @type Function
* @alias extend
* @category Objects
* @param {Object} object The destination object.
* @param {...Object} [source] The source objects.
* @param {Function} [callback] The function to customize assigning values.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns the destination object.
* @example
*
* _.assign({ 'name': 'fred' }, { 'employer': 'slate' });
* // => { 'name': 'fred', 'employer': 'slate' }
*
* var defaults = _.partialRight(_.assign, function(a, b) {
* return typeof a == 'undefined' ? b : a;
* });
*
* var object = { 'name': 'barney' };
* defaults(object, { 'name': 'fred', 'employer': 'slate' });
* // => { 'name': 'barney', 'employer': 'slate' }
*/
var assign = function(object, source, guard) {
var index, iterable = object, result = iterable;
if (!iterable) return result;
var args = arguments,
argsIndex = 0,
argsLength = typeof guard == 'number' ? 2 : args.length;
if (argsLength > 3 && typeof args[argsLength - 2] == 'function') {
var callback = baseCreateCallback(args[--argsLength - 1], args[argsLength--], 2);
} else if (argsLength > 2 && typeof args[argsLength - 1] == 'function') {
callback = args[--argsLength];
}
while (++argsIndex < argsLength) {
iterable = args[argsIndex];
if (iterable && objectTypes[typeof iterable]) {
var ownIndex = -1,
ownProps = objectTypes[typeof iterable] && keys(iterable),
length = ownProps ? ownProps.length : 0;
while (++ownIndex < length) {
index = ownProps[ownIndex];
result[index] = callback ? callback(result[index], iterable[index]) : iterable[index];
}
}
}
return result
};
/**
* Creates a clone of `value`. If `isDeep` is `true` nested objects will also
* be cloned, otherwise they will be assigned by reference. If a callback
* is provided it will be executed to produce the cloned values. If the
* callback returns `undefined` cloning will be handled by the method instead.
* The callback is bound to `thisArg` and invoked with one argument; (value).
*
* @static
* @memberOf _
* @category Objects
* @param {*} value The value to clone.
* @param {boolean} [isDeep=false] Specify a deep clone.
* @param {Function} [callback] The function to customize cloning values.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {*} Returns the cloned value.
* @example
*
* var characters = [
* { 'name': 'barney', 'age': 36 },
* { 'name': 'fred', 'age': 40 }
* ];
*
* var shallow = _.clone(characters);
* shallow[0] === characters[0];
* // => true
*
* var deep = _.clone(characters, true);
* deep[0] === characters[0];
* // => false
*
* _.mixin({
* 'clone': _.partialRight(_.clone, function(value) {
* return _.isElement(value) ? value.cloneNode(false) : undefined;
* })
* });
*
* var clone = _.clone(document.body);
* clone.childNodes.length;
* // => 0
*/
function clone(value, isDeep, callback, thisArg) {
// allows working with "Collections" methods without using their `index`
// and `collection` arguments for `isDeep` and `callback`
if (typeof isDeep != 'boolean' && isDeep != null) {
thisArg = callback;
callback = isDeep;
isDeep = false;
}
return baseClone(value, isDeep, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 1));
}
/**
* Creates a deep clone of `value`. If a callback is provided it will be
* executed to produce the cloned values. If the callback returns `undefined`
* cloning will be handled by the method instead. The callback is bound to
* `thisArg` and invoked with one argument; (value).
*
* Note: This method is loosely based on the structured clone algorithm. Functions
* and DOM nodes are **not** cloned. The enumerable properties of `arguments` objects and
* objects created by constructors other than `Object` are cloned to plain `Object` objects.
* See http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm.
*
* @static
* @memberOf _
* @category Objects
* @param {*} value The value to deep clone.
* @param {Function} [callback] The function to customize cloning values.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {*} Returns the deep cloned value.
* @example
*
* var characters = [
* { 'name': 'barney', 'age': 36 },
* { 'name': 'fred', 'age': 40 }
* ];
*
* var deep = _.cloneDeep(characters);
* deep[0] === characters[0];
* // => false
*
* var view = {
* 'label': 'docs',
* 'node': element
* };
*
* var clone = _.cloneDeep(view, function(value) {
* return _.isElement(value) ? value.cloneNode(true) : undefined;
* });
*
* clone.node == view.node;
* // => false
*/
function cloneDeep(value, callback, thisArg) {
return baseClone(value, true, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 1));
}
/**
* 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 Objects
* @param {Object} prototype The object to inherit from.
* @param {Object} [properties] The properties to assign to the object.
* @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) {
var result = baseCreate(prototype);
return properties ? assign(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 defaults of the same property will be ignored.
*
* @static
* @memberOf _
* @type Function
* @category Objects
* @param {Object} object The destination object.
* @param {...Object} [source] The source objects.
* @param- {Object} [guard] Allows working with `_.reduce` without using its
* `key` and `object` arguments as sources.
* @returns {Object} Returns the destination object.
* @example
*
* var object = { 'name': 'barney' };
* _.defaults(object, { 'name': 'fred', 'employer': 'slate' });
* // => { 'name': 'barney', 'employer': 'slate' }
*/
var defaults = function(object, source, guard) {
var index, iterable = object, result = iterable;
if (!iterable) return result;
var args = arguments,
argsIndex = 0,
argsLength = typeof guard == 'number' ? 2 : args.length;
while (++argsIndex < argsLength) {
iterable = args[argsIndex];
if (iterable && objectTypes[typeof iterable]) {
var ownIndex = -1,
ownProps = objectTypes[typeof iterable] && keys(iterable),
length = ownProps ? ownProps.length : 0;
while (++ownIndex < length) {
index = ownProps[ownIndex];
if (typeof result[index] == 'undefined') result[index] = iterable[index];
}
}
}
return result
};
/**
* This method is like `_.findIndex` except that it returns the key of the
* first element that passes the callback check, instead of the element itself.
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The object to search.
* @param {Function|Object|string} [callback=identity] The function called per
* iteration. If a property name or object is provided it will be used to
* create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {string|undefined} Returns the key of the found element, else `undefined`.
* @example
*
* var characters = {
* 'barney': { 'age': 36, 'blocked': false },
* 'fred': { 'age': 40, 'blocked': true },
* 'pebbles': { 'age': 1, 'blocked': false }
* };
*
* _.findKey(characters, function(chr) {
* return chr.age < 40;
* });
* // => 'barney' (property order is not guaranteed across environments)
*
* // using "_.where" callback shorthand
* _.findKey(characters, { 'age': 1 });
* // => 'pebbles'
*
* // using "_.pluck" callback shorthand
* _.findKey(characters, 'blocked');
* // => 'fred'
*/
function findKey(object, callback, thisArg) {
var result;
callback = lodash.createCallback(callback, thisArg, 3);
forOwn(object, function(value, key, object) {
if (callback(value, key, object)) {
result = key;
return false;
}
});
return result;
}
/**
* 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 `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The object to search.
* @param {Function|Object|string} [callback=identity] The function called per
* iteration. If a property name or object is provided it will be used to
* create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {string|undefined} Returns the key of the found element, else `undefined`.
* @example
*
* var characters = {
* 'barney': { 'age': 36, 'blocked': true },
* 'fred': { 'age': 40, 'blocked': false },
* 'pebbles': { 'age': 1, 'blocked': true }
* };
*
* _.findLastKey(characters, function(chr) {
* return chr.age < 40;
* });
* // => returns `pebbles`, assuming `_.findKey` returns `barney`
*
* // using "_.where" callback shorthand
* _.findLastKey(characters, { 'age': 40 });
* // => 'fred'
*
* // using "_.pluck" callback shorthand
* _.findLastKey(characters, 'blocked');
* // => 'pebbles'
*/
function findLastKey(object, callback, thisArg) {
var result;
callback = lodash.createCallback(callback, thisArg, 3);
forOwnRight(object, function(value, key, object) {
if (callback(value, key, object)) {
result = key;
return false;
}
});
return result;
}
/**
* Iterates over own and inherited enumerable properties of an object,
* executing the callback for each property. The callback is bound to `thisArg`
* and invoked with three arguments; (value, key, object). Callbacks may exit
* iteration early by explicitly returning `false`.
*
* @static
* @memberOf _
* @type Function
* @category Objects
* @param {Object} object The object to iterate over.
* @param {Function} [callback=identity] The function called per iteration.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns `object`.
* @example
*
* function Shape() {
* this.x = 0;
* this.y = 0;
* }
*
* Shape.prototype.move = function(x, y) {
* this.x += x;
* this.y += y;
* };
*
* _.forIn(new Shape, function(value, key) {
* console.log(key);
* });
* // => logs 'x', 'y', and 'move' (property order is not guaranteed across environments)
*/
var forIn = function(collection, callback, thisArg) {
var index, iterable = collection, result = iterable;
if (!iterable) return result;
if (!objectTypes[typeof iterable]) return result;
callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
for (index in iterable) {
if (callback(iterable[index], index, collection) === false) return result;
}
return result
};
/**
* This method is like `_.forIn` except that it iterates over elements
* of a `collection` in the opposite order.
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The object to iterate over.
* @param {Function} [callback=identity] The function called per iteration.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns `object`.
* @example
*
* function Shape() {
* this.x = 0;
* this.y = 0;
* }
*
* Shape.prototype.move = function(x, y) {
* this.x += x;
* this.y += y;
* };
*
* _.forInRight(new Shape, function(value, key) {
* console.log(key);
* });
* // => logs 'move', 'y', and 'x' assuming `_.forIn ` logs 'x', 'y', and 'move'
*/
function forInRight(object, callback, thisArg) {
var pairs = [];
forIn(object, function(value, key) {
pairs.push(key, value);
});
var length = pairs.length;
callback = baseCreateCallback(callback, thisArg, 3);
while (length--) {
if (callback(pairs[length--], pairs[length], object) === false) {
break;
}
}
return object;
}
/**
* Iterates over own enumerable properties of an object, executing the callback
* for each property. The callback is bound to `thisArg` and invoked with three
* arguments; (value, key, object). Callbacks may exit iteration early by
* explicitly returning `false`.
*
* @static
* @memberOf _
* @type Function
* @category Objects
* @param {Object} object The object to iterate over.
* @param {Function} [callback=identity] The function called per iteration.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns `object`.
* @example
*
* _.forOwn({ '0': 'zero', '1': 'one', 'length': 2 }, function(num, key) {
* console.log(key);
* });
* // => logs '0', '1', and 'length' (property order is not guaranteed across environments)
*/
var forOwn = function(collection, callback, thisArg) {
var index, iterable = collection, result = iterable;
if (!iterable) return result;
if (!objectTypes[typeof iterable]) return result;
callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
var ownIndex = -1,
ownProps = objectTypes[typeof iterable] && keys(iterable),
length = ownProps ? ownProps.length : 0;
while (++ownIndex < length) {
index = ownProps[ownIndex];
if (callback(iterable[index], index, collection) === false) return result;
}
return result
};
/**
* This method is like `_.forOwn` except that it iterates over elements
* of a `collection` in the opposite order.
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The object to iterate over.
* @param {Function} [callback=identity] The function called per iteration.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns `object`.
* @example
*
* _.forOwnRight({ '0': 'zero', '1': 'one', 'length': 2 }, function(num, key) {
* console.log(key);
* });
* // => logs 'length', '1', and '0' assuming `_.forOwn` logs '0', '1', and 'length'
*/
function forOwnRight(object, callback, thisArg) {
var props = keys(object),
length = props.length;
callback = baseCreateCallback(callback, thisArg, 3);
while (length--) {
var key = props[length];
if (callback(object[key], key, object) === false) {
break;
}
}
return object;
}
/**
* Creates a sorted array of property names of all enumerable properties,
* own and inherited, of `object` that have function values.
*
* @static
* @memberOf _
* @alias methods
* @category Objects
* @param {Object} object The object to inspect.
* @returns {Array} Returns an array of property names that have function values.
* @example
*
* _.functions(_);
* // => ['all', 'any', 'bind', 'bindAll', 'clone', 'compact', 'compose', ...]
*/
function functions(object) {
var result = [];
forIn(object, function(value, key) {
if (isFunction(value)) {
result.push(key);
}
});
return result.sort();
}
/**
* Checks if the specified property name exists as a direct property of `object`,
* instead of an inherited property.
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The object to inspect.
* @param {string} key The name of the property to check.
* @returns {boolean} Returns `true` if key is a direct property, else `false`.
* @example
*
* _.has({ 'a': 1, 'b': 2, 'c': 3 }, 'b');
* // => true
*/
function has(object, key) {
return object ? hasOwnProperty.call(object, key) : false;
}
/**
* Creates an object composed of the inverted keys and values of the given object.
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The object to invert.
* @returns {Object} Returns the created inverted object.
* @example
*
* _.invert({ 'first': 'fred', 'second': 'barney' });
* // => { 'fred': 'first', 'barney': 'second' }
*/
function invert(object) {
var index = -1,
props = keys(object),
length = props.length,
result = {};
while (++index < length) {
var key = props[index];
result[object[key]] = key;
}
return result;
}
/**
* Checks if `value` is a boolean value.
*
* @static
* @memberOf _
* @category Objects
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the `value` is a boolean value, else `false`.
* @example
*
* _.isBoolean(null);
* // => false
*/
function isBoolean(value) {
return value === true || value === false ||
value && typeof value == 'object' && toString.call(value) == boolClass || false;
}
/**
* Checks if `value` is a date.
*
* @static
* @memberOf _
* @category Objects
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the `value` is a date, else `false`.
* @example
*
* _.isDate(new Date);
* // => true
*/
function isDate(value) {
return value && typeof value == 'object' && toString.call(value) == dateClass || false;
}
/**
* Checks if `value` is a DOM element.
*
* @static
* @memberOf _
* @category Objects
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the `value` is a DOM element, else `false`.
* @example
*
* _.isElement(document.body);
* // => true
*/
function isElement(value) {
return value && value.nodeType === 1 || false;
}
/**
* Checks if `value` is empty. Arrays, strings, or `arguments` objects with a
* length of `0` and objects with no own enumerable properties are considered
* "empty".
*
* @static
* @memberOf _
* @category Objects
* @param {Array|Object|string} value The value to inspect.
* @returns {boolean} Returns `true` if the `value` is empty, else `false`.
* @example
*
* _.isEmpty([1, 2, 3]);
* // => false
*
* _.isEmpty({});
* // => true
*
* _.isEmpty('');
* // => true
*/
function isEmpty(value) {
var result = true;
if (!value) {
return result;
}
var className = toString.call(value),
length = value.length;
if ((className == arrayClass || className == stringClass || className == argsClass ) ||
(className == objectClass && typeof length == 'number' && isFunction(value.splice))) {
return !length;
}
forOwn(value, function() {
return (result = false);
});
return result;
}
/**
* Performs a deep comparison between two values to determine if they are
* equivalent to each other. If a callback is provided it will be executed
* to compare values. If the callback returns `undefined` comparisons will
* be handled by the method instead. The callback is bound to `thisArg` and
* invoked with two arguments; (a, b).
*
* @static
* @memberOf _
* @category Objects
* @param {*} a The value to compare.
* @param {*} b The other value to compare.
* @param {Function} [callback] The function to customize comparing values.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {boolean} Returns `true` if the values are equivalent, else `false`.
* @example
*
* var object = { 'name': 'fred' };
* var copy = { 'name': 'fred' };
*
* object == copy;
* // => false
*
* _.isEqual(object, copy);
* // => true
*
* var words = ['hello', 'goodbye'];
* var otherWords = ['hi', 'goodbye'];
*
* _.isEqual(words, otherWords, function(a, b) {
* var reGreet = /^(?:hello|hi)$/i,
* aGreet = _.isString(a) && reGreet.test(a),
* bGreet = _.isString(b) && reGreet.test(b);
*
* return (aGreet || bGreet) ? (aGreet == bGreet) : undefined;
* });
* // => true
*/
function isEqual(a, b, callback, thisArg) {
return baseIsEqual(a, b, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 2));
}
/**
* Checks if `value` is, or can be coerced to, a finite number.
*
* Note: This is not the same as native `isFinite` which will return true for
* booleans and empty strings. See http://es5.github.io/#x15.1.2.5.
*
* @static
* @memberOf _
* @category Objects
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the `value` is finite, else `false`.
* @example
*
* _.isFinite(-101);
* // => true
*
* _.isFinite('10');
* // => true
*
* _.isFinite(true);
* // => false
*
* _.isFinite('');
* // => false
*
* _.isFinite(Infinity);
* // => false
*/
function isFinite(value) {
return nativeIsFinite(value) && !nativeIsNaN(parseFloat(value));
}
/**
* Checks if `value` is a function.
*
* @static
* @memberOf _
* @category Objects
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the `value` is a function, else `false`.
* @example
*
* _.isFunction(_);
* // => true
*/
function isFunction(value) {
return typeof value == 'function';
}
/**
* Checks if `value` is the language type of Object.
* (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
*
* @static
* @memberOf _
* @category Objects
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the `value` is an object, else `false`.
* @example
*
* _.isObject({});
* // => true
*
* _.isObject([1, 2, 3]);
* // => true
*
* _.isObject(1);
* // => false
*/
function isObject(value) {
// check if the value is the ECMAScript language type of Object
// http://es5.github.io/#x8
// and avoid a V8 bug
// http://code.google.com/p/v8/issues/detail?id=2291
return !!(value && objectTypes[typeof value]);
}
/**
* Checks if `value` is `NaN`.
*
* Note: This is not the same as native `isNaN` which will return `true` for
* `undefined` and other non-numeric values. See http://es5.github.io/#x15.1.2.4.
*
* @static
* @memberOf _
* @category Objects
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the `value` is `NaN`, else `false`.
* @example
*
* _.isNaN(NaN);
* // => true
*
* _.isNaN(new Number(NaN));
* // => true
*
* isNaN(undefined);
* // => true
*
* _.isNaN(undefined);
* // => false
*/
function isNaN(value) {
// `NaN` as a primitive is the only value that is not equal to itself
// (perform the [[Class]] check first to avoid errors with some host objects in IE)
return isNumber(value) && value != +value;
}
/**
* Checks if `value` is `null`.
*
* @static
* @memberOf _
* @category Objects
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the `value` is `null`, else `false`.
* @example
*
* _.isNull(null);
* // => true
*
* _.isNull(undefined);
* // => false
*/
function isNull(value) {
return value === null;
}
/**
* Checks if `value` is a number.
*
* Note: `NaN` is considered a number. See http://es5.github.io/#x8.5.
*
* @static
* @memberOf _
* @category Objects
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the `value` is a number, else `false`.
* @example
*
* _.isNumber(8.4 * 5);
* // => true
*/
function isNumber(value) {
return typeof value == 'number' ||
value && typeof value == 'object' && toString.call(value) == numberClass || false;
}
/**
* Checks if `value` is an object created by the `Object` constructor.
*
* @static
* @memberOf _
* @category Objects
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
* @example
*
* function Shape() {
* this.x = 0;
* this.y = 0;
* }
*
* _.isPlainObject(new Shape);
* // => false
*
* _.isPlainObject([1, 2, 3]);
* // => false
*
* _.isPlainObject({ 'x': 0, 'y': 0 });
* // => true
*/
var isPlainObject = !getPrototypeOf ? shimIsPlainObject : function(value) {
if (!(value && toString.call(value) == objectClass)) {
return false;
}
var valueOf = value.valueOf,
objProto = isNative(valueOf) && (objProto = getPrototypeOf(valueOf)) && getPrototypeOf(objProto);
return objProto
? (value == objProto || getPrototypeOf(value) == objProto)
: shimIsPlainObject(value);
};
/**
* Checks if `value` is a regular expression.
*
* @static
* @memberOf _
* @category Objects
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the `value` is a regular expression, else `false`.
* @example
*
* _.isRegExp(/fred/);
* // => true
*/
function isRegExp(value) {
return value && typeof value == 'object' && toString.call(value) == regexpClass || false;
}
/**
* Checks if `value` is a string.
*
* @static
* @memberOf _
* @category Objects
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the `value` is a string, else `false`.
* @example
*
* _.isString('fred');
* // => true
*/
function isString(value) {
return typeof value == 'string' ||
value && typeof value == 'object' && toString.call(value) == stringClass || false;
}
/**
* Checks if `value` is `undefined`.
*
* @static
* @memberOf _
* @category Objects
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the `value` is `undefined`, else `false`.
* @example
*
* _.isUndefined(void 0);
* // => true
*/
function isUndefined(value) {
return typeof value == 'undefined';
}
/**
* Creates an object with the same keys as `object` and values generated by
* running each own enumerable property of `object` through the callback.
* The callback is bound to `thisArg` and invoked with three arguments;
* (value, key, object).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The object to iterate over.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a new object with values of the results of each `callback` execution.
* @example
*
* _.mapValues({ 'a': 1, 'b': 2, 'c': 3} , function(num) { return num * 3; });
* // => { 'a': 3, 'b': 6, 'c': 9 }
*
* var characters = {
* 'fred': { 'name': 'fred', 'age': 40 },
* 'pebbles': { 'name': 'pebbles', 'age': 1 }
* };
*
* // using "_.pluck" callback shorthand
* _.mapValues(characters, 'age');
* // => { 'fred': 40, 'pebbles': 1 }
*/
function mapValues(object, callback, thisArg) {
var result = {};
callback = lodash.createCallback(callback, thisArg, 3);
forOwn(object, function(value, key, object) {
result[key] = callback(value, key, object);
});
return result;
}
/**
* Recursively merges own enumerable properties of the source object(s), that
* don't resolve to `undefined` into the destination object. Subsequent sources
* will overwrite property assignments of previous sources. If a callback is
* provided it will be executed to produce the merged values of the destination
* and source properties. If the callback returns `undefined` merging will
* be handled by the method instead. The callback is bound to `thisArg` and
* invoked with two arguments; (objectValue, sourceValue).
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The destination object.
* @param {...Object} [source] The source objects.
* @param {Function} [callback] The function to customize merging properties.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns the destination object.
* @example
*
* var names = {
* 'characters': [
* { 'name': 'barney' },
* { 'name': 'fred' }
* ]
* };
*
* var ages = {
* 'characters': [
* { 'age': 36 },
* { 'age': 40 }
* ]
* };
*
* _.merge(names, ages);
* // => { 'characters': [{ 'name': 'barney', 'age': 36 }, { 'name': 'fred', 'age': 40 }] }
*
* var food = {
* 'fruits': ['apple'],
* 'vegetables': ['beet']
* };
*
* var otherFood = {
* 'fruits': ['banana'],
* 'vegetables': ['carrot']
* };
*
* _.merge(food, otherFood, function(a, b) {
* return _.isArray(a) ? a.concat(b) : undefined;
* });
* // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot] }
*/
function merge(object) {
var args = arguments,
length = 2;
if (!isObject(object)) {
return object;
}
// allows working with `_.reduce` and `_.reduceRight` without using
// their `index` and `collection` arguments
if (typeof args[2] != 'number') {
length = args.length;
}
if (length > 3 && typeof args[length - 2] == 'function') {
var callback = baseCreateCallback(args[--length - 1], args[length--], 2);
} else if (length > 2 && typeof args[length - 1] == 'function') {
callback = args[--length];
}
var sources = slice(arguments, 1, length),
index = -1,
stackA = getArray(),
stackB = getArray();
while (++index < length) {
baseMerge(object, sources[index], callback, stackA, stackB);
}
releaseArray(stackA);
releaseArray(stackB);
return object;
}
/**
* Creates a shallow clone of `object` excluding the specified properties.
* Property names may be specified as individual arguments or as arrays of
* property names. If a callback is provided it will be executed for each
* property of `object` omitting the properties the callback returns truey
* for. The callback is bound to `thisArg` and invoked with three arguments;
* (value, key, object).
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The source object.
* @param {Function|...string|string[]} [callback] The properties to omit or the
* function called per iteration.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns an object without the omitted properties.
* @example
*
* _.omit({ 'name': 'fred', 'age': 40 }, 'age');
* // => { 'name': 'fred' }
*
* _.omit({ 'name': 'fred', 'age': 40 }, function(value) {
* return typeof value == 'number';
* });
* // => { 'name': 'fred' }
*/
function omit(object, callback, thisArg) {
var result = {};
if (typeof callback != 'function') {
var props = [];
forIn(object, function(value, key) {
props.push(key);
});
props = baseDifference(props, baseFlatten(arguments, true, false, 1));
var index = -1,
length = props.length;
while (++index < length) {
var key = props[index];
result[key] = object[key];
}
} else {
callback = lodash.createCallback(callback, thisArg, 3);
forIn(object, function(value, key, object) {
if (!callback(value, key, object)) {
result[key] = value;
}
});
}
return result;
}
/**
* Creates a two dimensional array of an object's key-value pairs,
* i.e. `[[key1, value1], [key2, value2]]`.
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The object to inspect.
* @returns {Array} Returns new array of key-value pairs.
* @example
*
* _.pairs({ 'barney': 36, 'fred': 40 });
* // => [['barney', 36], ['fred', 40]] (property order is not guaranteed across environments)
*/
function pairs(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 a shallow clone of `object` composed of the specified properties.
* Property names may be specified as individual arguments or as arrays of
* property names. If a callback is provided it will be executed for each
* property of `object` picking the properties the callback returns truey
* for. The callback is bound to `thisArg` and invoked with three arguments;
* (value, key, object).
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The source object.
* @param {Function|...string|string[]} [callback] The function called per
* iteration or property names to pick, specified as individual property
* names or arrays of property names.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns an object composed of the picked properties.
* @example
*
* _.pick({ 'name': 'fred', '_userid': 'fred1' }, 'name');
* // => { 'name': 'fred' }
*
* _.pick({ 'name': 'fred', '_userid': 'fred1' }, function(value, key) {
* return key.charAt(0) != '_';
* });
* // => { 'name': 'fred' }
*/
function pick(object, callback, thisArg) {
var result = {};
if (typeof callback != 'function') {
var index = -1,
props = baseFlatten(arguments, true, false, 1),
length = isObject(object) ? props.length : 0;
while (++index < length) {
var key = props[index];
if (key in object) {
result[key] = object[key];
}
}
} else {
callback = lodash.createCallback(callback, thisArg, 3);
forIn(object, function(value, key, object) {
if (callback(value, key, object)) {
result[key] = value;
}
});
}
return result;
}
/**
* 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 a callback, with each callback execution
* potentially mutating the `accumulator` object. The callback is bound to
* `thisArg` and invoked with four arguments; (accumulator, value, key, object).
* Callbacks may exit iteration early by explicitly returning `false`.
*
* @static
* @memberOf _
* @category Objects
* @param {Array|Object} object The object to iterate over.
* @param {Function} [callback=identity] The function called per iteration.
* @param {*} [accumulator] The custom accumulator value.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {*} Returns the accumulated value.
* @example
*
* var squares = _.transform([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], function(result, num) {
* num *= num;
* if (num % 2) {
* return result.push(num) < 3;
* }
* });
* // => [1, 9, 25]
*
* var mapped = _.transform({ 'a': 1, 'b': 2, 'c': 3 }, function(result, num, key) {
* result[key] = num * 3;
* });
* // => { 'a': 3, 'b': 6, 'c': 9 }
*/
function transform(object, callback, accumulator, thisArg) {
var isArr = isArray(object);
if (accumulator == null) {
if (isArr) {
accumulator = [];
} else {
var ctor = object && object.constructor,
proto = ctor && ctor.prototype;
accumulator = baseCreate(proto);
}
}
if (callback) {
callback = lodash.createCallback(callback, thisArg, 4);
(isArr ? forEach : forOwn)(object, function(value, index, object) {
return callback(accumulator, value, index, object);
});
}
return accumulator;
}
/**
* Creates an array composed of the own enumerable property values of `object`.
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The object to inspect.
* @returns {Array} Returns an array of property values.
* @example
*
* _.values({ 'one': 1, 'two': 2, 'three': 3 });
* // => [1, 2, 3] (property order is not guaranteed across environments)
*/
function values(object) {
var index = -1,
props = keys(object),
length = props.length,
result = Array(length);
while (++index < length) {
result[index] = object[props[index]];
}
return result;
}
/*--------------------------------------------------------------------------*/
/**
* Creates an array of elements from the specified indexes, or keys, of the
* `collection`. Indexes may be specified as individual arguments or as arrays
* of indexes.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {...(number|number[]|string|string[])} [index] The indexes of `collection`
* to retrieve, specified as individual indexes or arrays of indexes.
* @returns {Array} Returns a new array of elements corresponding to the
* provided indexes.
* @example
*
* _.at(['a', 'b', 'c', 'd', 'e'], [0, 2, 4]);
* // => ['a', 'c', 'e']
*
* _.at(['fred', 'barney', 'pebbles'], 0, 2);
* // => ['fred', 'pebbles']
*/
function at(collection) {
var args = arguments,
index = -1,
props = baseFlatten(args, true, false, 1),
length = (args[2] && args[2][args[1]] === collection) ? 1 : props.length,
result = Array(length);
while(++index < length) {
result[index] = collection[props[index]];
}
return result;
}
/**
* Checks if a given value is present in a collection using strict equality
* for comparisons, i.e. `===`. If `fromIndex` is negative, it is used as the
* offset from the end of the collection.
*
* @static
* @memberOf _
* @alias include
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {*} target The value to check for.
* @param {number} [fromIndex=0] The index to search from.
* @returns {boolean} Returns `true` if the `target` element is found, else `false`.
* @example
*
* _.contains([1, 2, 3], 1);
* // => true
*
* _.contains([1, 2, 3], 1, 2);
* // => false
*
* _.contains({ 'name': 'fred', 'age': 40 }, 'fred');
* // => true
*
* _.contains('pebbles', 'eb');
* // => true
*/
function contains(collection, target, fromIndex) {
var index = -1,
indexOf = getIndexOf(),
length = collection ? collection.length : 0,
result = false;
fromIndex = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex) || 0;
if (isArray(collection)) {
result = indexOf(collection, target, fromIndex) > -1;
} else if (typeof length == 'number') {
result = (isString(collection) ? collection.indexOf(target, fromIndex) : indexOf(collection, target, fromIndex)) > -1;
} else {
forOwn(collection, function(value) {
if (++index >= fromIndex) {
return !(result = value === target);
}
});
}
return result;
}
/**
* Creates an object composed of keys generated from the results of running
* each element of `collection` through the callback. The corresponding value
* of each key is the number of times the key was returned by the callback.
* The callback is bound to `thisArg` and invoked with three arguments;
* (value, index|key, collection).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns the composed aggregate object.
* @example
*
* _.countBy([4.3, 6.1, 6.4], function(num) { return Math.floor(num); });
* // => { '4': 1, '6': 2 }
*
* _.countBy([4.3, 6.1, 6.4], function(num) { return this.floor(num); }, 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 the given callback returns truey value for **all** elements of
* a collection. The callback is bound to `thisArg` and invoked with three
* arguments; (value, index|key, collection).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @alias all
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {boolean} Returns `true` if all elements passed the callback check,
* else `false`.
* @example
*
* _.every([true, 1, null, 'yes']);
* // => false
*
* var characters = [
* { 'name': 'barney', 'age': 36 },
* { 'name': 'fred', 'age': 40 }
* ];
*
* // using "_.pluck" callback shorthand
* _.every(characters, 'age');
* // => true
*
* // using "_.where" callback shorthand
* _.every(characters, { 'age': 36 });
* // => false
*/
function every(collection, callback, thisArg) {
var result = true;
callback = lodash.createCallback(callback, thisArg, 3);
var index = -1,
length = collection ? collection.length : 0;
if (typeof length == 'number') {
while (++index < length) {
if (!(result = !!callback(collection[index], index, collection))) {
break;
}
}
} else {
forOwn(collection, function(value, index, collection) {
return (result = !!callback(value, index, collection));
});
}
return result;
}
/**
* Iterates over elements of a collection, returning an array of all elements
* the callback returns truey for. The callback is bound to `thisArg` and
* invoked with three arguments; (value, index|key, collection).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @alias select
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a new array of elements that passed the callback check.
* @example
*
* var evens = _.filter([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
* // => [2, 4, 6]
*
* var characters = [
* { 'name': 'barney', 'age': 36, 'blocked': false },
* { 'name': 'fred', 'age': 40, 'blocked': true }
* ];
*
* // using "_.pluck" callback shorthand
* _.filter(characters, 'blocked');
* // => [{ 'name': 'fred', 'age': 40, 'blocked': true }]
*
* // using "_.where" callback shorthand
* _.filter(characters, { 'age': 36 });
* // => [{ 'name': 'barney', 'age': 36, 'blocked': false }]
*/
function filter(collection, callback, thisArg) {
var result = [];
callback = lodash.createCallback(callback, thisArg, 3);
var index = -1,
length = collection ? collection.length : 0;
if (typeof length == 'number') {
while (++index < length) {
var value = collection[index];
if (callback(value, index, collection)) {
result.push(value);
}
}
} else {
forOwn(collection, function(value, index, collection) {
if (callback(value, index, collection)) {
result.push(value);
}
});
}
return result;
}
/**
* Iterates over elements of a collection, returning the first element that
* the callback returns truey for. The callback is bound to `thisArg` and
* invoked with three arguments; (value, index|key, collection).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @alias detect, findWhere
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {*} Returns the found element, else `undefined`.
* @example
*
* var characters = [
* { 'name': 'barney', 'age': 36, 'blocked': false },
* { 'name': 'fred', 'age': 40, 'blocked': true },
* { 'name': 'pebbles', 'age': 1, 'blocked': false }
* ];
*
* _.find(characters, function(chr) {
* return chr.age < 40;
* });
* // => { 'name': 'barney', 'age': 36, 'blocked': false }
*
* // using "_.where" callback shorthand
* _.find(characters, { 'age': 1 });
* // => { 'name': 'pebbles', 'age': 1, 'blocked': false }
*
* // using "_.pluck" callback shorthand
* _.find(characters, 'blocked');
* // => { 'name': 'fred', 'age': 40, 'blocked': true }
*/
function find(collection, callback, thisArg) {
callback = lodash.createCallback(callback, thisArg, 3);
var index = -1,
length = collection ? collection.length : 0;
if (typeof length == 'number') {
while (++index < length) {
var value = collection[index];
if (callback(value, index, collection)) {
return value;
}
}
} else {
var result;
forOwn(collection, function(value, index, collection) {
if (callback(value, index, collection)) {
result = value;
return false;
}
});
return result;
}
}
/**
* This method is like `_.find` except that it iterates over elements
* of a `collection` from right to left.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {*} Returns the found element, else `undefined`.
* @example
*
* _.findLast([1, 2, 3, 4], function(num) {
* return num % 2 == 1;
* });
* // => 3
*/
function findLast(collection, callback, thisArg) {
var result;
callback = lodash.createCallback(callback, thisArg, 3);
forEachRight(collection, function(value, index, collection) {
if (callback(value, index, collection)) {
result = value;
return false;
}
});
return result;
}
/**
* Iterates over elements of a collection, executing the callback for each
* element. The callback is bound to `thisArg` and invoked with three arguments;
* (value, index|key, collection). Callbacks 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 Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function} [callback=identity] The function called per iteration.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Array|Object|string} Returns `collection`.
* @example
*
* _([1, 2, 3]).forEach(function(num) { console.log(num); }).join(',');
* // => logs each number and returns '1,2,3'
*
* _.forEach({ 'one': 1, 'two': 2, 'three': 3 }, function(num) { console.log(num); });
* // => logs each number and returns the object (property order is not guaranteed across environments)
*/
function forEach(collection, callback, thisArg) {
var index = -1,
length = collection ? collection.length : 0;
callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
if (typeof length == 'number') {
while (++index < length) {
if (callback(collection[index], index, collection) === false) {
break;
}
}
} else {
forOwn(collection, callback);
}
return collection;
}
/**
* This method is like `_.forEach` except that it iterates over elements
* of a `collection` from right to left.
*
* @static
* @memberOf _
* @alias eachRight
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function} [callback=identity] The function called per iteration.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Array|Object|string} Returns `collection`.
* @example
*
* _([1, 2, 3]).forEachRight(function(num) { console.log(num); }).join(',');
* // => logs each number from right to left and returns '3,2,1'
*/
function forEachRight(collection, callback, thisArg) {
var length = collection ? collection.length : 0;
callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
if (typeof length == 'number') {
while (length--) {
if (callback(collection[length], length, collection) === false) {
break;
}
}
} else {
var props = keys(collection);
length = props.length;
forOwn(collection, function(value, key, collection) {
key = props ? props[--length] : --length;
return callback(collection[key], key, collection);
});
}
return collection;
}
/**
* Creates an object composed of keys generated from the results of running
* each element of a collection through the callback. The corresponding value
* of each key is an array of the elements responsible for generating the key.
* The callback is bound to `thisArg` and invoked with three arguments;
* (value, index|key, collection).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns the composed aggregate object.
* @example
*
* _.groupBy([4.2, 6.1, 6.4], function(num) { return Math.floor(num); });
* // => { '4': [4.2], '6': [6.1, 6.4] }
*
* _.groupBy([4.2, 6.1, 6.4], function(num) { return this.floor(num); }, Math);
* // => { '4': [4.2], '6': [6.1, 6.4] }
*
* // using "_.pluck" callback shorthand
* _.groupBy(['one', 'two', 'three'], 'length');
* // => { '3': ['one', 'two'], '5': ['three'] }
*/
var groupBy = createAggregator(function(result, value, key) {
(hasOwnProperty.call(result, key) ? result[key] : result[key] = []).push(value);
});
/**
* Creates an object composed of keys generated from the results of running
* each element of the collection through the given callback. The corresponding
* value of each key is the last element responsible for generating the key.
* The callback is bound to `thisArg` and invoked with three arguments;
* (value, index|key, collection).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns the composed aggregate object.
* @example
*
* var keys = [
* { 'dir': 'left', 'code': 97 },
* { 'dir': 'right', 'code': 100 }
* ];
*
* _.indexBy(keys, 'dir');
* // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
*
* _.indexBy(keys, function(key) { return String.fromCharCode(key.code); });
* // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
*
* _.indexBy(characters, function(key) { this.fromCharCode(key.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 named by `methodName` on each element in the `collection`
* returning an array of the results of each invoked method. Additional arguments
* will be provided to each invoked method. If `methodName` is a function it
* will be invoked for, and `this` bound to, each element in the `collection`.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|string} methodName The name of the method to invoke or
* the function invoked per iteration.
* @param {...*} [arg] Arguments to invoke the method with.
* @returns {Array} Returns a new array of the results of each invoked method.
* @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']]
*/
function invoke(collection, methodName) {
var args = slice(arguments, 2),
index = -1,
isFunc = typeof methodName == 'function',
length = collection ? collection.length : 0,
result = Array(typeof length == 'number' ? length : 0);
forEach(collection, function(value) {
result[++index] = (isFunc ? methodName : value[methodName]).apply(value, args);
});
return result;
}
/**
* Creates an array of values by running each element in the collection
* through the callback. The callback is bound to `thisArg` and invoked with
* three arguments; (value, index|key, collection).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @alias collect
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a new array of the results of each `callback` execution.
* @example
*
* _.map([1, 2, 3], function(num) { return num * 3; });
* // => [3, 6, 9]
*
* _.map({ 'one': 1, 'two': 2, 'three': 3 }, function(num) { return num * 3; });
* // => [3, 6, 9] (property order is not guaranteed across environments)
*
* var characters = [
* { 'name': 'barney', 'age': 36 },
* { 'name': 'fred', 'age': 40 }
* ];
*
* // using "_.pluck" callback shorthand
* _.map(characters, 'name');
* // => ['barney', 'fred']
*/
function map(collection, callback, thisArg) {
var index = -1,
length = collection ? collection.length : 0;
callback = lodash.createCallback(callback, thisArg, 3);
if (typeof length == 'number') {
var result = Array(length);
while (++index < length) {
result[index] = callback(collection[index], index, collection);
}
} else {
result = [];
forOwn(collection, function(value, key, collection) {
result[++index] = callback(value, key, collection);
});
}
return result;
}
/**
* Retrieves the maximum value of a collection. If the collection is empty or
* falsey `-Infinity` is returned. If a callback is provided it will be executed
* for each value in the collection to generate the criterion by which the value
* is ranked. The callback is bound to `thisArg` and invoked with three
* arguments; (value, index, collection).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {*} Returns the maximum value.
* @example
*
* _.max([4, 2, 8, 6]);
* // => 8
*
* var characters = [
* { 'name': 'barney', 'age': 36 },
* { 'name': 'fred', 'age': 40 }
* ];
*
* _.max(characters, function(chr) { return chr.age; });
* // => { 'name': 'fred', 'age': 40 };
*
* // using "_.pluck" callback shorthand
* _.max(characters, 'age');
* // => { 'name': 'fred', 'age': 40 };
*/
function max(collection, callback, thisArg) {
var computed = -Infinity,
result = computed;
// allows working with functions like `_.map` without using
// their `index` argument as a callback
if (typeof callback != 'function' && thisArg && thisArg[callback] === collection) {
callback = null;
}
if (callback == null && isArray(collection)) {
var index = -1,
length = collection.length;
while (++index < length) {
var value = collection[index];
if (value > result) {
result = value;
}
}
} else {
callback = (callback == null && isString(collection))
? charAtCallback
: lodash.createCallback(callback, thisArg, 3);
forEach(collection, function(value, index, collection) {
var current = callback(value, index, collection);
if (current > computed) {
computed = current;
result = value;
}
});
}
return result;
}
/**
* Retrieves the minimum value of a collection. If the collection is empty or
* falsey `Infinity` is returned. If a callback is provided it will be executed
* for each value in the collection to generate the criterion by which the value
* is ranked. The callback is bound to `thisArg` and invoked with three
* arguments; (value, index, collection).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {*} Returns the minimum value.
* @example
*
* _.min([4, 2, 8, 6]);
* // => 2
*
* var characters = [
* { 'name': 'barney', 'age': 36 },
* { 'name': 'fred', 'age': 40 }
* ];
*
* _.min(characters, function(chr) { return chr.age; });
* // => { 'name': 'barney', 'age': 36 };
*
* // using "_.pluck" callback shorthand
* _.min(characters, 'age');
* // => { 'name': 'barney', 'age': 36 };
*/
function min(collection, callback, thisArg) {
var computed = Infinity,
result = computed;
// allows working with functions like `_.map` without using
// their `index` argument as a callback
if (typeof callback != 'function' && thisArg && thisArg[callback] === collection) {
callback = null;
}
if (callback == null && isArray(collection)) {
var index = -1,
length = collection.length;
while (++index < length) {
var value = collection[index];
if (value < result) {
result = value;
}
}
} else {
callback = (callback == null && isString(collection))
? charAtCallback
: lodash.createCallback(callback, thisArg, 3);
forEach(collection, function(value, index, collection) {
var current = callback(value, index, collection);
if (current < computed) {
computed = current;
result = value;
}
});
}
return result;
}
/**
* Retrieves the value of a specified property from all elements in the collection.
*
* @static
* @memberOf _
* @type Function
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {string} property The name of the property to pluck.
* @returns {Array} Returns a new array of property values.
* @example
*
* var characters = [
* { 'name': 'barney', 'age': 36 },
* { 'name': 'fred', 'age': 40 }
* ];
*
* _.pluck(characters, 'name');
* // => ['barney', 'fred']
*/
var pluck = map;
/**
* Reduces a collection to a value which is the accumulated result of running
* each element in the collection through the callback, where each successive
* callback execution consumes the return value of the previous execution. If
* `accumulator` is not provided the first element of the collection will be
* used as the initial `accumulator` value. The callback is bound to `thisArg`
* and invoked with four arguments; (accumulator, value, index|key, collection).
*
* @static
* @memberOf _
* @alias foldl, inject
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function} [callback=identity] The function called per iteration.
* @param {*} [accumulator] Initial value of the accumulator.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {*} Returns the accumulated value.
* @example
*
* var sum = _.reduce([1, 2, 3], function(sum, num) {
* return sum + num;
* });
* // => 6
*
* var mapped = _.reduce({ 'a': 1, 'b': 2, 'c': 3 }, function(result, num, key) {
* result[key] = num * 3;
* return result;
* }, {});
* // => { 'a': 3, 'b': 6, 'c': 9 }
*/
function reduce(collection, callback, accumulator, thisArg) {
if (!collection) return accumulator;
var noaccum = arguments.length < 3;
callback = lodash.createCallback(callback, thisArg, 4);
var index = -1,
length = collection.length;
if (typeof length == 'number') {
if (noaccum) {
accumulator = collection[++index];
}
while (++index < length) {
accumulator = callback(accumulator, collection[index], index, collection);
}
} else {
forOwn(collection, function(value, index, collection) {
accumulator = noaccum
? (noaccum = false, value)
: callback(accumulator, value, index, collection)
});
}
return accumulator;
}
/**
* This method is like `_.reduce` except that it iterates over elements
* of a `collection` from right to left.
*
* @static
* @memberOf _
* @alias foldr
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function} [callback=identity] The function called per iteration.
* @param {*} [accumulator] Initial value of the accumulator.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {*} Returns the accumulated value.
* @example
*
* var list = [[0, 1], [2, 3], [4, 5]];
* var flat = _.reduceRight(list, function(a, b) { return a.concat(b); }, []);
* // => [4, 5, 2, 3, 0, 1]
*/
function reduceRight(collection, callback, accumulator, thisArg) {
var noaccum = arguments.length < 3;
callback = lodash.createCallback(callback, thisArg, 4);
forEachRight(collection, function(value, index, collection) {
accumulator = noaccum
? (noaccum = false, value)
: callback(accumulator, value, index, collection);
});
return accumulator;
}
/**
* The opposite of `_.filter` this method returns the elements of a
* collection that the callback does **not** return truey for.
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a new array of elements that failed the callback check.
* @example
*
* var odds = _.reject([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
* // => [1, 3, 5]
*
* var characters = [
* { 'name': 'barney', 'age': 36, 'blocked': false },
* { 'name': 'fred', 'age': 40, 'blocked': true }
* ];
*
* // using "_.pluck" callback shorthand
* _.reject(characters, 'blocked');
* // => [{ 'name': 'barney', 'age': 36, 'blocked': false }]
*
* // using "_.where" callback shorthand
* _.reject(characters, { 'age': 36 });
* // => [{ 'name': 'fred', 'age': 40, 'blocked': true }]
*/
function reject(collection, callback, thisArg) {
callback = lodash.createCallback(callback, thisArg, 3);
return filter(collection, function(value, index, collection) {
return !callback(value, index, collection);
});
}
/**
* Retrieves a random element or `n` random elements from a collection.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|string} collection The collection to sample.
* @param {number} [n] The number of elements to sample.
* @param- {Object} [guard] Allows working with functions like `_.map`
* without using their `index` arguments as `n`.
* @returns {Array} Returns the random sample(s) of `collection`.
* @example
*
* _.sample([1, 2, 3, 4]);
* // => 2
*
* _.sample([1, 2, 3, 4], 2);
* // => [3, 1]
*/
function sample(collection, n, guard) {
if (collection && typeof collection.length != 'number') {
collection = values(collection);
}
if (n == null || guard) {
return collection ? collection[baseRandom(0, collection.length - 1)] : undefined;
}
var result = shuffle(collection);
result.length = nativeMin(nativeMax(0, n), result.length);
return result;
}
/**
* Creates an array of shuffled values, using a version of the Fisher-Yates
* shuffle. See http://en.wikipedia.org/wiki/Fisher-Yates_shuffle.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|string} collection The collection to shuffle.
* @returns {Array} Returns a new shuffled collection.
* @example
*
* _.shuffle([1, 2, 3, 4, 5, 6]);
* // => [4, 1, 6, 3, 5, 2]
*/
function shuffle(collection) {
var index = -1,
length = collection ? collection.length : 0,
result = Array(typeof length == 'number' ? length : 0);
forEach(collection, function(value) {
var rand = baseRandom(0, ++index);
result[index] = result[rand];
result[rand] = value;
});
return result;
}
/**
* Gets the size of the `collection` by returning `collection.length` for arrays
* and array-like objects or the number of own enumerable properties for objects.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|string} collection The collection to inspect.
* @returns {number} Returns `collection.length` or number of own enumerable properties.
* @example
*
* _.size([1, 2]);
* // => 2
*
* _.size({ 'one': 1, 'two': 2, 'three': 3 });
* // => 3
*
* _.size('pebbles');
* // => 7
*/
function size(collection) {
var length = collection ? collection.length : 0;
return typeof length == 'number' ? length : keys(collection).length;
}
/**
* Checks if the callback returns a truey value for **any** element of a
* collection. The function returns as soon as it finds a passing value and
* does not iterate over the entire collection. The callback is bound to
* `thisArg` and invoked with three arguments; (value, index|key, collection).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @alias any
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {boolean} Returns `true` if any element passed the callback check,
* else `false`.
* @example
*
* _.some([null, 0, 'yes', false], Boolean);
* // => true
*
* var characters = [
* { 'name': 'barney', 'age': 36, 'blocked': false },
* { 'name': 'fred', 'age': 40, 'blocked': true }
* ];
*
* // using "_.pluck" callback shorthand
* _.some(characters, 'blocked');
* // => true
*
* // using "_.where" callback shorthand
* _.some(characters, { 'age': 1 });
* // => false
*/
function some(collection, callback, thisArg) {
var result;
callback = lodash.createCallback(callback, thisArg, 3);
var index = -1,
length = collection ? collection.length : 0;
if (typeof length == 'number') {
while (++index < length) {
if ((result = callback(collection[index], index, collection))) {
break;
}
}
} else {
forOwn(collection, function(value, index, collection) {
return !(result = callback(value, index, collection));
});
}
return !!result;
}
/**
* Creates an array of elements, sorted in ascending order by the results of
* running each element in a collection through the callback. This method
* performs a stable sort, that is, it will preserve the original sort order
* of equal elements. The callback is bound to `thisArg` and invoked with
* three arguments; (value, index|key, collection).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an array of property names is provided for `callback` the collection
* will be sorted by each property value.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Array|Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a new array of sorted elements.
* @example
*
* _.sortBy([1, 2, 3], function(num) { return Math.sin(num); });
* // => [3, 1, 2]
*
* _.sortBy([1, 2, 3], function(num) { return this.sin(num); }, Math);
* // => [3, 1, 2]
*
* var characters = [
* { 'name': 'barney', 'age': 36 },
* { 'name': 'fred', 'age': 40 },
* { 'name': 'barney', 'age': 26 },
* { 'name': 'fred', 'age': 30 }
* ];
*
* // using "_.pluck" callback shorthand
* _.map(_.sortBy(characters, 'age'), _.values);
* // => [['barney', 26], ['fred', 30], ['barney', 36], ['fred', 40]]
*
* // sorting by multiple properties
* _.map(_.sortBy(characters, ['name', 'age']), _.values);
* // = > [['barney', 26], ['barney', 36], ['fred', 30], ['fred', 40]]
*/
function sortBy(collection, callback, thisArg) {
var index = -1,
isArr = isArray(callback),
length = collection ? collection.length : 0,
result = Array(typeof length == 'number' ? length : 0);
if (!isArr) {
callback = lodash.createCallback(callback, thisArg, 3);
}
forEach(collection, function(value, key, collection) {
var object = result[++index] = getObject();
if (isArr) {
object.criteria = map(callback, function(key) { return value[key]; });
} else {
(object.criteria = getArray())[0] = callback(value, key, collection);
}
object.index = index;
object.value = value;
});
length = result.length;
result.sort(compareAscending);
while (length--) {
var object = result[length];
result[length] = object.value;
if (!isArr) {
releaseArray(object.criteria);
}
releaseObject(object);
}
return result;
}
/**
* Converts the `collection` to an array.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|string} collection The collection to convert.
* @returns {Array} Returns the new converted array.
* @example
*
* (function() { return _.toArray(arguments).slice(1); })(1, 2, 3, 4);
* // => [2, 3, 4]
*/
function toArray(collection) {
if (collection && typeof collection.length == 'number') {
return slice(collection);
}
return values(collection);
}
/**
* Performs a deep comparison of each element in a `collection` to the given
* `properties` object, returning an array of all elements that have equivalent
* property values.
*
* @static
* @memberOf _
* @type Function
* @category Collections
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Object} props The object of property values to filter by.
* @returns {Array} Returns a new array of elements that have the given properties.
* @example
*
* var characters = [
* { 'name': 'barney', 'age': 36, 'pets': ['hoppy'] },
* { 'name': 'fred', 'age': 40, 'pets': ['baby puss', 'dino'] }
* ];
*
* _.where(characters, { 'age': 36 });
* // => [{ 'name': 'barney', 'age': 36, 'pets': ['hoppy'] }]
*
* _.where(characters, { 'pets': ['dino'] });
* // => [{ 'name': 'fred', 'age': 40, 'pets': ['baby puss', 'dino'] }]
*/
var where = filter;
/*--------------------------------------------------------------------------*/
/**
* Creates an array with all falsey values removed. The values `false`, `null`,
* `0`, `""`, `undefined`, and `NaN` are all falsey.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to compact.
* @returns {Array} Returns a 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,
result = [];
while (++index < length) {
var value = array[index];
if (value) {
result.push(value);
}
}
return result;
}
/**
* Creates an array excluding all values of the provided arrays using strict
* equality for comparisons, i.e. `===`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to process.
* @param {...Array} [values] The arrays of values to exclude.
* @returns {Array} Returns a new array of filtered values.
* @example
*
* _.difference([1, 2, 3, 4, 5], [5, 2, 10]);
* // => [1, 3, 4]
*/
function difference(array) {
return baseDifference(array, baseFlatten(arguments, true, true, 1));
}
/**
* This method is like `_.find` except that it returns the index of the first
* element that passes the callback check, instead of the element itself.
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to search.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {number} Returns the index of the found element, else `-1`.
* @example
*
* var characters = [
* { 'name': 'barney', 'age': 36, 'blocked': false },
* { 'name': 'fred', 'age': 40, 'blocked': true },
* { 'name': 'pebbles', 'age': 1, 'blocked': false }
* ];
*
* _.findIndex(characters, function(chr) {
* return chr.age < 20;
* });
* // => 2
*
* // using "_.where" callback shorthand
* _.findIndex(characters, { 'age': 36 });
* // => 0
*
* // using "_.pluck" callback shorthand
* _.findIndex(characters, 'blocked');
* // => 1
*/
function findIndex(array, callback, thisArg) {
var index = -1,
length = array ? array.length : 0;
callback = lodash.createCallback(callback, thisArg, 3);
while (++index < length) {
if (callback(array[index], index, array)) {
return index;
}
}
return -1;
}
/**
* This method is like `_.findIndex` except that it iterates over elements
* of a `collection` from right to left.
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to search.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {number} Returns the index of the found element, else `-1`.
* @example
*
* var characters = [
* { 'name': 'barney', 'age': 36, 'blocked': true },
* { 'name': 'fred', 'age': 40, 'blocked': false },
* { 'name': 'pebbles', 'age': 1, 'blocked': true }
* ];
*
* _.findLastIndex(characters, function(chr) {
* return chr.age > 30;
* });
* // => 1
*
* // using "_.where" callback shorthand
* _.findLastIndex(characters, { 'age': 36 });
* // => 0
*
* // using "_.pluck" callback shorthand
* _.findLastIndex(characters, 'blocked');
* // => 2
*/
function findLastIndex(array, callback, thisArg) {
var length = array ? array.length : 0;
callback = lodash.createCallback(callback, thisArg, 3);
while (length--) {
if (callback(array[length], length, array)) {
return length;
}
}
return -1;
}
/**
* Gets the first element or first `n` elements of an array. If a callback
* is provided elements at the beginning of the array are returned as long
* as the callback returns truey. The callback is bound to `thisArg` and
* invoked with three arguments; (value, index, array).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @alias head, take
* @category Arrays
* @param {Array} array The array to query.
* @param {Function|Object|number|string} [callback] The function called
* per element or the number of elements to return. If a property name or
* object is provided it will be used to create a "_.pluck" or "_.where"
* style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {*} Returns the first element(s) of `array`.
* @example
*
* _.first([1, 2, 3]);
* // => 1
*
* _.first([1, 2, 3], 2);
* // => [1, 2]
*
* _.first([1, 2, 3], function(num) {
* return num < 3;
* });
* // => [1, 2]
*
* var characters = [
* { 'name': 'barney', 'blocked': true, 'employer': 'slate' },
* { 'name': 'fred', 'blocked': false, 'employer': 'slate' },
* { 'name': 'pebbles', 'blocked': true, 'employer': 'na' }
* ];
*
* // using "_.pluck" callback shorthand
* _.first(characters, 'blocked');
* // => [{ 'name': 'barney', 'blocked': true, 'employer': 'slate' }]
*
* // using "_.where" callback shorthand
* _.pluck(_.first(characters, { 'employer': 'slate' }), 'name');
* // => ['barney', 'fred']
*/
function first(array, callback, thisArg) {
var n = 0,
length = array ? array.length : 0;
if (typeof callback != 'number' && callback != null) {
var index = -1;
callback = lodash.createCallback(callback, thisArg, 3);
while (++index < length && callback(array[index], index, array)) {
n++;
}
} else {
n = callback;
if (n == null || thisArg) {
return array ? array[0] : undefined;
}
}
return slice(array, 0, nativeMin(nativeMax(0, n), length));
}
/**
* Flattens a nested array (the nesting can be to any depth). If `isShallow`
* is truey, the array will only be flattened a single level. If a callback
* is provided each element of the array is passed through the callback before
* flattening. The callback is bound to `thisArg` and invoked with three
* arguments; (value, index, array).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to flatten.
* @param {boolean} [isShallow=false] A flag to restrict flattening to a single level.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a new flattened array.
* @example
*
* _.flatten([1, [2], [3, [[4]]]]);
* // => [1, 2, 3, 4];
*
* _.flatten([1, [2], [3, [[4]]]], true);
* // => [1, 2, 3, [[4]]];
*
* var characters = [
* { 'name': 'barney', 'age': 30, 'pets': ['hoppy'] },
* { 'name': 'fred', 'age': 40, 'pets': ['baby puss', 'dino'] }
* ];
*
* // using "_.pluck" callback shorthand
* _.flatten(characters, 'pets');
* // => ['hoppy', 'baby puss', 'dino']
*/
function flatten(array, isShallow, callback, thisArg) {
// juggle arguments
if (typeof isShallow != 'boolean' && isShallow != null) {
thisArg = callback;
callback = (typeof isShallow != 'function' && thisArg && thisArg[isShallow] === array) ? null : isShallow;
isShallow = false;
}
if (callback != null) {
array = map(array, callback, thisArg);
}
return baseFlatten(array, isShallow);
}
/**
* Gets the index at which the first occurrence of `value` is found using
* strict equality for comparisons, i.e. `===`. If the array is already sorted
* providing `true` for `fromIndex` will run a faster binary search.
*
* @static
* @memberOf _
* @category Arrays
* @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 or `-1`.
* @example
*
* _.indexOf([1, 2, 3, 1, 2, 3], 2);
* // => 1
*
* _.indexOf([1, 2, 3, 1, 2, 3], 2, 3);
* // => 4
*
* _.indexOf([1, 1, 2, 2, 3, 3], 2, true);
* // => 2
*/
function indexOf(array, value, fromIndex) {
if (typeof fromIndex == 'number') {
var length = array ? array.length : 0;
fromIndex = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex || 0);
} else if (fromIndex) {
var index = sortedIndex(array, value);
return array[index] === value ? index : -1;
}
return baseIndexOf(array, value, fromIndex);
}
/**
* Gets all but the last element or last `n` elements of an array. If a
* callback is provided elements at the end of the array are excluded from
* the result as long as the callback returns truey. The callback is bound
* to `thisArg` and invoked with three arguments; (value, index, array).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to query.
* @param {Function|Object|number|string} [callback=1] The function called
* per element or the number of elements to exclude. If a property name or
* object is provided it will be used to create a "_.pluck" or "_.where"
* style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a slice of `array`.
* @example
*
* _.initial([1, 2, 3]);
* // => [1, 2]
*
* _.initial([1, 2, 3], 2);
* // => [1]
*
* _.initial([1, 2, 3], function(num) {
* return num > 1;
* });
* // => [1]
*
* var characters = [
* { 'name': 'barney', 'blocked': false, 'employer': 'slate' },
* { 'name': 'fred', 'blocked': true, 'employer': 'slate' },
* { 'name': 'pebbles', 'blocked': true, 'employer': 'na' }
* ];
*
* // using "_.pluck" callback shorthand
* _.initial(characters, 'blocked');
* // => [{ 'name': 'barney', 'blocked': false, 'employer': 'slate' }]
*
* // using "_.where" callback shorthand
* _.pluck(_.initial(characters, { 'employer': 'na' }), 'name');
* // => ['barney', 'fred']
*/
function initial(array, callback, thisArg) {
var n = 0,
length = array ? array.length : 0;
if (typeof callback != 'number' && callback != null) {
var index = length;
callback = lodash.createCallback(callback, thisArg, 3);
while (index-- && callback(array[index], index, array)) {
n++;
}
} else {
n = (callback == null || thisArg) ? 1 : callback || n;
}
return slice(array, 0, nativeMin(nativeMax(0, length - n), length));
}
/**
* Creates an array of unique values present in all provided arrays using
* strict equality for comparisons, i.e. `===`.
*
* @static
* @memberOf _
* @category Arrays
* @param {...Array} [array] The arrays to inspect.
* @returns {Array} Returns an array of shared values.
* @example
*
* _.intersection([1, 2, 3], [5, 2, 1, 4], [2, 1]);
* // => [1, 2]
*/
function intersection() {
var args = [],
argsIndex = -1,
argsLength = arguments.length,
caches = getArray(),
indexOf = getIndexOf(),
trustIndexOf = indexOf === baseIndexOf,
seen = getArray();
while (++argsIndex < argsLength) {
var value = arguments[argsIndex];
if (isArray(value) || isArguments(value)) {
args.push(value);
caches.push(trustIndexOf && value.length >= largeArraySize &&
createCache(argsIndex ? args[argsIndex] : seen));
}
}
var array = args[0],
index = -1,
length = array ? array.length : 0,
result = [];
outer:
while (++index < length) {
var cache = caches[0];
value = array[index];
if ((cache ? cacheIndexOf(cache, value) : indexOf(seen, value)) < 0) {
argsIndex = argsLength;
(cache || seen).push(value);
while (--argsIndex) {
cache = caches[argsIndex];
if ((cache ? cacheIndexOf(cache, value) : indexOf(args[argsIndex], value)) < 0) {
continue outer;
}
}
result.push(value);
}
}
while (argsLength--) {
cache = caches[argsLength];
if (cache) {
releaseObject(cache);
}
}
releaseArray(caches);
releaseArray(seen);
return result;
}
/**
* Gets the last element or last `n` elements of an array. If a callback is
* provided elements at the end of the array are returned as long as the
* callback returns truey. The callback is bound to `thisArg` and invoked
* with three arguments; (value, index, array).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to query.
* @param {Function|Object|number|string} [callback] The function called
* per element or the number of elements to return. If a property name or
* object is provided it will be used to create a "_.pluck" or "_.where"
* style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {*} Returns the last element(s) of `array`.
* @example
*
* _.last([1, 2, 3]);
* // => 3
*
* _.last([1, 2, 3], 2);
* // => [2, 3]
*
* _.last([1, 2, 3], function(num) {
* return num > 1;
* });
* // => [2, 3]
*
* var characters = [
* { 'name': 'barney', 'blocked': false, 'employer': 'slate' },
* { 'name': 'fred', 'blocked': true, 'employer': 'slate' },
* { 'name': 'pebbles', 'blocked': true, 'employer': 'na' }
* ];
*
* // using "_.pluck" callback shorthand
* _.pluck(_.last(characters, 'blocked'), 'name');
* // => ['fred', 'pebbles']
*
* // using "_.where" callback shorthand
* _.last(characters, { 'employer': 'na' });
* // => [{ 'name': 'pebbles', 'blocked': true, 'employer': 'na' }]
*/
function last(array, callback, thisArg) {
var n = 0,
length = array ? array.length : 0;
if (typeof callback != 'number' && callback != null) {
var index = length;
callback = lodash.createCallback(callback, thisArg, 3);
while (index-- && callback(array[index], index, array)) {
n++;
}
} else {
n = callback;
if (n == null || thisArg) {
return array ? array[length - 1] : undefined;
}
}
return slice(array, nativeMax(0, length - n));
}
/**
* Gets the index at which the last occurrence of `value` is found using strict
* equality for comparisons, i.e. `===`. If `fromIndex` is negative, it is used
* as the offset from the end of the collection.
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to search.
* @param {*} value The value to search for.
* @param {number} [fromIndex=array.length-1] The index to search from.
* @returns {number} Returns the index of the matched value or `-1`.
* @example
*
* _.lastIndexOf([1, 2, 3, 1, 2, 3], 2);
* // => 4
*
* _.lastIndexOf([1, 2, 3, 1, 2, 3], 2, 3);
* // => 1
*/
function lastIndexOf(array, value, fromIndex) {
var index = array ? array.length : 0;
if (typeof fromIndex == 'number') {
index = (fromIndex < 0 ? nativeMax(0, index + fromIndex) : nativeMin(fromIndex, index - 1)) + 1;
}
while (index--) {
if (array[index] === value) {
return index;
}
}
return -1;
}
/**
* Removes all provided values from the given array using strict equality for
* comparisons, i.e. `===`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to modify.
* @param {...*} [value] 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(array) {
var args = arguments,
argsIndex = 0,
argsLength = args.length,
length = array ? array.length : 0;
while (++argsIndex < argsLength) {
var index = -1,
value = args[argsIndex];
while (++index < length) {
if (array[index] === value) {
splice.call(array, index--, 1);
length--;
}
}
}
return array;
}
/**
* Creates an array of numbers (positive and/or negative) progressing from
* `start` up to but not including `end`. If `start` is less than `stop` a
* zero-length range is created unless a negative `step` is specified.
*
* @static
* @memberOf _
* @category Arrays
* @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 a new range array.
* @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) {
start = +start || 0;
step = typeof step == 'number' ? step : (+step || 1);
if (end == null) {
end = start;
start = 0;
}
// use `Array(length)` so engines like Chakra and V8 avoid slower modes
// http://youtu.be/XAqIpGU8ZZk#t=17m25s
var index = -1,
length = nativeMax(0, ceil((end - start) / (step || 1))),
result = Array(length);
while (++index < length) {
result[index] = start;
start += step;
}
return result;
}
/**
* Removes all elements from an array that the callback returns truey for
* and returns an array of removed elements. The callback is bound to `thisArg`
* and invoked with three arguments; (value, index, array).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to modify.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a new array of removed elements.
* @example
*
* var array = [1, 2, 3, 4, 5, 6];
* var evens = _.remove(array, function(num) { return num % 2 == 0; });
*
* console.log(array);
* // => [1, 3, 5]
*
* console.log(evens);
* // => [2, 4, 6]
*/
function remove(array, callback, thisArg) {
var index = -1,
length = array ? array.length : 0,
result = [];
callback = lodash.createCallback(callback, thisArg, 3);
while (++index < length) {
var value = array[index];
if (callback(value, index, array)) {
result.push(value);
splice.call(array, index--, 1);
length--;
}
}
return result;
}
/**
* The opposite of `_.initial` this method gets all but the first element or
* first `n` elements of an array. If a callback function is provided elements
* at the beginning of the array are excluded from the result as long as the
* callback returns truey. The callback is bound to `thisArg` and invoked
* with three arguments; (value, index, array).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @alias drop, tail
* @category Arrays
* @param {Array} array The array to query.
* @param {Function|Object|number|string} [callback=1] The function called
* per element or the number of elements to exclude. If a property name or
* object is provided it will be used to create a "_.pluck" or "_.where"
* style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a slice of `array`.
* @example
*
* _.rest([1, 2, 3]);
* // => [2, 3]
*
* _.rest([1, 2, 3], 2);
* // => [3]
*
* _.rest([1, 2, 3], function(num) {
* return num < 3;
* });
* // => [3]
*
* var characters = [
* { 'name': 'barney', 'blocked': true, 'employer': 'slate' },
* { 'name': 'fred', 'blocked': false, 'employer': 'slate' },
* { 'name': 'pebbles', 'blocked': true, 'employer': 'na' }
* ];
*
* // using "_.pluck" callback shorthand
* _.pluck(_.rest(characters, 'blocked'), 'name');
* // => ['fred', 'pebbles']
*
* // using "_.where" callback shorthand
* _.rest(characters, { 'employer': 'slate' });
* // => [{ 'name': 'pebbles', 'blocked': true, 'employer': 'na' }]
*/
function rest(array, callback, thisArg) {
if (typeof callback != 'number' && callback != null) {
var n = 0,
index = -1,
length = array ? array.length : 0;
callback = lodash.createCallback(callback, thisArg, 3);
while (++index < length && callback(array[index], index, array)) {
n++;
}
} else {
n = (callback == null || thisArg) ? 1 : nativeMax(0, callback);
}
return slice(array, n);
}
/**
* Uses a binary search to determine the smallest index at which a value
* should be inserted into a given sorted array in order to maintain the sort
* order of the array. If a callback is provided it will be executed for
* `value` and each element of `array` to compute their sort ranking. The
* callback is bound to `thisArg` and invoked with one argument; (value).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to inspect.
* @param {*} value The value to evaluate.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {number} Returns the index at which `value` should be inserted
* into `array`.
* @example
*
* _.sortedIndex([20, 30, 50], 40);
* // => 2
*
* // using "_.pluck" callback shorthand
* _.sortedIndex([{ 'x': 20 }, { 'x': 30 }, { 'x': 50 }], { 'x': 40 }, 'x');
* // => 2
*
* var dict = {
* 'wordToNumber': { 'twenty': 20, 'thirty': 30, 'fourty': 40, 'fifty': 50 }
* };
*
* _.sortedIndex(['twenty', 'thirty', 'fifty'], 'fourty', function(word) {
* return dict.wordToNumber[word];
* });
* // => 2
*
* _.sortedIndex(['twenty', 'thirty', 'fifty'], 'fourty', function(word) {
* return this.wordToNumber[word];
* }, dict);
* // => 2
*/
function sortedIndex(array, value, callback, thisArg) {
var low = 0,
high = array ? array.length : low;
// explicitly reference `identity` for better inlining in Firefox
callback = callback ? lodash.createCallback(callback, thisArg, 1) : identity;
value = callback(value);
while (low < high) {
var mid = (low + high) >>> 1;
(callback(array[mid]) < value)
? low = mid + 1
: high = mid;
}
return low;
}
/**
* Creates an array of unique values, in order, of the provided arrays using
* strict equality for comparisons, i.e. `===`.
*
* @static
* @memberOf _
* @category Arrays
* @param {...Array} [array] The arrays to inspect.
* @returns {Array} Returns an array of combined values.
* @example
*
* _.union([1, 2, 3], [5, 2, 1, 4], [2, 1]);
* // => [1, 2, 3, 5, 4]
*/
function union() {
return baseUniq(baseFlatten(arguments, true, true));
}
/**
* Creates a duplicate-value-free version of an array using strict equality
* for comparisons, i.e. `===`. If the array is sorted, providing
* `true` for `isSorted` will use a faster algorithm. If a callback is provided
* each element of `array` is passed through the callback before uniqueness
* is computed. The callback is bound to `thisArg` and invoked with three
* arguments; (value, index, array).
*
* If a property name is provided for `callback` the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is provided for `callback` the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @alias unique
* @category Arrays
* @param {Array} array The array to process.
* @param {boolean} [isSorted=false] A flag to indicate that `array` is sorted.
* @param {Function|Object|string} [callback=identity] The function called
* per iteration. If a property name or object is provided it will be used
* to create a "_.pluck" or "_.where" style callback, respectively.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a duplicate-value-free array.
* @example
*
* _.uniq([1, 2, 1, 3, 1]);
* // => [1, 2, 3]
*
* _.uniq([1, 1, 2, 2, 3], true);
* // => [1, 2, 3]
*
* _.uniq(['A', 'b', 'C', 'a', 'B', 'c'], function(letter) { return letter.toLowerCase(); });
* // => ['A', 'b', 'C']
*
* _.uniq([1, 2.5, 3, 1.5, 2, 3.5], function(num) { return this.floor(num); }, Math);
* // => [1, 2.5, 3]
*
* // using "_.pluck" callback shorthand
* _.uniq([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
* // => [{ 'x': 1 }, { 'x': 2 }]
*/
function uniq(array, isSorted, callback, thisArg) {
// juggle arguments
if (typeof isSorted != 'boolean' && isSorted != null) {
thisArg = callback;
callback = (typeof isSorted != 'function' && thisArg && thisArg[isSorted] === array) ? null : isSorted;
isSorted = false;
}
if (callback != null) {
callback = lodash.createCallback(callback, thisArg, 3);
}
return baseUniq(array, isSorted, callback);
}
/**
* Creates an array excluding all provided values using strict equality for
* comparisons, i.e. `===`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to filter.
* @param {...*} [value] The values to exclude.
* @returns {Array} Returns a new array of filtered values.
* @example
*
* _.without([1, 2, 1, 0, 3, 1, 4], 0, 1);
* // => [2, 3, 4]
*/
function without(array) {
return baseDifference(array, slice(arguments, 1));
}
/**
* Creates an array that is the symmetric difference of the provided arrays.
* See http://en.wikipedia.org/wiki/Symmetric_difference.
*
* @static
* @memberOf _
* @category Arrays
* @param {...Array} [array] The arrays to inspect.
* @returns {Array} Returns an array of values.
* @example
*
* _.xor([1, 2, 3], [5, 2, 1, 4]);
* // => [3, 5, 4]
*
* _.xor([1, 2, 5], [2, 3, 5], [3, 4, 5]);
* // => [1, 4, 5]
*/
function xor() {
var index = -1,
length = arguments.length;
while (++index < length) {
var array = arguments[index];
if (isArray(array) || isArguments(array)) {
var result = result
? baseUniq(baseDifference(result, array).concat(baseDifference(array, result)))
: array;
}
}
return 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 _
* @alias unzip
* @category Arrays
* @param {...Array} [array] Arrays to process.
* @returns {Array} Returns a new array of grouped elements.
* @example
*
* _.zip(['fred', 'barney'], [30, 40], [true, false]);
* // => [['fred', 30, true], ['barney', 40, false]]
*/
function zip() {
var array = arguments.length > 1 ? arguments : arguments[0],
index = -1,
length = array ? max(pluck(array, 'length')) : 0,
result = Array(length < 0 ? 0 : length);
while (++index < length) {
result[index] = pluck(array, index);
}
return result;
}
/**
* Creates an object composed from arrays of `keys` and `values`. Provide
* either a single two dimensional array, i.e. `[[key1, value1], [key2, value2]]`
* or two arrays, one of `keys` and one of corresponding `values`.
*
* @static
* @memberOf _
* @alias object
* @category Arrays
* @param {Array} keys The array of keys.
* @param {Array} [values=[]] The array of values.
* @returns {Object} Returns an object composed of the given keys and
* corresponding values.
* @example
*
* _.zipObject(['fred', 'barney'], [30, 40]);
* // => { 'fred': 30, 'barney': 40 }
*/
function zipObject(keys, values) {
var index = -1,
length = keys ? keys.length : 0,
result = {};
if (!values && length && !isArray(keys[0])) {
values = [];
}
while (++index < length) {
var key = keys[index];
if (values) {
result[key] = values[index];
} else if (key) {
result[key[0]] = key[1];
}
}
return result;
}
/*--------------------------------------------------------------------------*/
/**
* Creates a function that executes `func`, with the `this` binding and
* arguments of the created function, only after being called `n` times.
*
* @static
* @memberOf _
* @category Functions
* @param {number} n The number of times the function must be called before
* `func` is executed.
* @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 all saves have completed
*/
function after(n, func) {
if (!isFunction(func)) {
throw new TypeError;
}
return function() {
if (--n < 1) {
return func.apply(this, arguments);
}
};
}
/**
* Creates a function that, when called, invokes `func` with the `this`
* binding of `thisArg` and prepends any additional `bind` arguments to those
* provided to the bound function.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to bind.
* @param {*} [thisArg] The `this` binding of `func`.
* @param {...*} [arg] Arguments to be partially applied.
* @returns {Function} Returns the new bound function.
* @example
*
* var func = function(greeting) {
* return greeting + ' ' + this.name;
* };
*
* func = _.bind(func, { 'name': 'fred' }, 'hi');
* func();
* // => 'hi fred'
*/
function bind(func, thisArg) {
return arguments.length > 2
? createWrapper(func, 17, slice(arguments, 2), null, thisArg)
: createWrapper(func, 1, null, null, thisArg);
}
/**
* 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 the function properties
* of `object` will be bound.
*
* @static
* @memberOf _
* @category Functions
* @param {Object} object The object to bind and assign the bound methods to.
* @param {...string} [methodName] 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 button is clicked
*/
function bindAll(object) {
var funcs = arguments.length > 1 ? baseFlatten(arguments, true, false, 1) : functions(object),
index = -1,
length = funcs.length;
while (++index < length) {
var key = funcs[index];
object[key] = createWrapper(object[key], 1, null, null, object);
}
return object;
}
/**
* Creates a function that, when called, 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 will be redefined or don't yet exist.
* See http://michaux.ca/articles/lazy-function-definition-pattern.
*
* @static
* @memberOf _
* @category Functions
* @param {Object} object The object the method belongs to.
* @param {string} key The key of the method.
* @param {...*} [arg] Arguments to be partially applied.
* @returns {Function} Returns the new bound function.
* @example
*
* var object = {
* 'name': 'fred',
* 'greet': function(greeting) {
* return greeting + ' ' + this.name;
* }
* };
*
* var func = _.bindKey(object, 'greet', 'hi');
* func();
* // => 'hi fred'
*
* object.greet = function(greeting) {
* return greeting + 'ya ' + this.name + '!';
* };
*
* func();
* // => 'hiya fred!'
*/
function bindKey(object, key) {
return arguments.length > 2
? createWrapper(key, 19, slice(arguments, 2), null, object)
: createWrapper(key, 3, null, null, object);
}
/**
* Creates a function that is the composition of the provided functions,
* where each function consumes the return value of the function that follows.
* For example, composing the functions `f()`, `g()`, and `h()` produces `f(g(h()))`.
* Each function is executed with the `this` binding of the composed function.
*
* @static
* @memberOf _
* @category Functions
* @param {...Function} [func] Functions to compose.
* @returns {Function} Returns the new composed function.
* @example
*
* var realNameMap = {
* 'pebbles': 'penelope'
* };
*
* var format = function(name) {
* name = realNameMap[name.toLowerCase()] || name;
* return name.charAt(0).toUpperCase() + name.slice(1).toLowerCase();
* };
*
* var greet = function(formatted) {
* return 'Hiya ' + formatted + '!';
* };
*
* var welcome = _.compose(greet, format);
* welcome('pebbles');
* // => 'Hiya Penelope!'
*/
function compose() {
var funcs = arguments,
length = funcs.length;
while (length--) {
if (!isFunction(funcs[length])) {
throw new TypeError;
}
}
return function() {
var args = arguments,
length = funcs.length;
while (length--) {
args = [funcs[length].apply(this, args)];
}
return args[0];
};
}
/**
* Creates a function which accepts one or more arguments of `func` that when
* invoked either executes `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` can be specified
* if `func.length` is not sufficient.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to curry.
* @param {number} [arity=func.length] The arity of `func`.
* @returns {Function} Returns the new curried function.
* @example
*
* var curried = _.curry(function(a, b, c) {
* console.log(a + b + c);
* });
*
* curried(1)(2)(3);
* // => 6
*
* curried(1, 2)(3);
* // => 6
*
* curried(1, 2, 3);
* // => 6
*/
function curry(func, arity) {
arity = typeof arity == 'number' ? arity : (+arity || func.length);
return createWrapper(func, 4, null, null, null, arity);
}
/**
* Creates a function that will delay the execution of `func` until after
* `wait` milliseconds have elapsed since the last time it was invoked.
* 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 will return the result of the last `func` call.
*
* Note: If `leading` and `trailing` options are `true` `func` will be called
* on the trailing edge of the timeout only if the the debounced function is
* invoked more than once during the `wait` timeout.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to debounce.
* @param {number} wait The number of milliseconds to delay.
* @param {Object} [options] The options object.
* @param {boolean} [options.leading=false] Specify execution on the leading edge of the timeout.
* @param {number} [options.maxWait] The maximum time `func` is allowed to be delayed before it's called.
* @param {boolean} [options.trailing=true] Specify execution 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
* var lazyLayout = _.debounce(calculateLayout, 150);
* jQuery(window).on('resize', lazyLayout);
*
* // execute `sendMail` when the click event is fired, debouncing subsequent calls
* jQuery('#postbox').on('click', _.debounce(sendMail, 300, {
* 'leading': true,
* 'trailing': false
* });
*
* // ensure `batchLog` is executed once after 1 second of debounced calls
* var source = new EventSource('/stream');
* source.addEventListener('message', _.debounce(batchLog, 250, {
* 'maxWait': 1000
* }, false);
*/
function debounce(func, wait, options) {
var args,
maxTimeoutId,
result,
stamp,
thisArg,
timeoutId,
trailingCall,
lastCalled = 0,
maxWait = false,
trailing = true;
if (!isFunction(func)) {
throw new TypeError;
}
wait = nativeMax(0, wait) || 0;
if (options === true) {
var leading = true;
trailing = false;
} else if (isObject(options)) {
leading = options.leading;
maxWait = 'maxWait' in options && (nativeMax(wait, options.maxWait) || 0);
trailing = 'trailing' in options ? options.trailing : trailing;
}
var delayed = function() {
var remaining = wait - (now() - stamp);
if (remaining <= 0) {
if (maxTimeoutId) {
clearTimeout(maxTimeoutId);
}
var isCalled = trailingCall;
maxTimeoutId = timeoutId = trailingCall = undefined;
if (isCalled) {
lastCalled = now();
result = func.apply(thisArg, args);
if (!timeoutId && !maxTimeoutId) {
args = thisArg = null;
}
}
} else {
timeoutId = setTimeout(delayed, remaining);
}
};
var maxDelayed = function() {
if (timeoutId) {
clearTimeout(timeoutId);
}
maxTimeoutId = timeoutId = trailingCall = undefined;
if (trailing || (maxWait !== wait)) {
lastCalled = now();
result = func.apply(thisArg, args);
if (!timeoutId && !maxTimeoutId) {
args = thisArg = null;
}
}
};
return function() {
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;
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 = null;
}
return result;
};
}
/**
* Defers executing the `func` function until the current call stack has cleared.
* Additional arguments will be provided to `func` when it is invoked.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to defer.
* @param {...*} [arg] 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
*/
function defer(func) {
if (!isFunction(func)) {
throw new TypeError;
}
var args = slice(arguments, 1);
return setTimeout(function() { func.apply(undefined, args); }, 1);
}
/**
* Executes the `func` function after `wait` milliseconds. Additional arguments
* will be provided to `func` when it is invoked.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to delay.
* @param {number} wait The number of milliseconds to delay execution.
* @param {...*} [arg] 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
*/
function delay(func, wait) {
if (!isFunction(func)) {
throw new TypeError;
}
var args = slice(arguments, 2);
return setTimeout(function() { func.apply(undefined, args); }, wait);
}
/**
* Creates a function that memoizes the result of `func`. If `resolver` is
* provided it will be used to determine 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 used as the cache key.
* The `func` is executed with the `this` binding of the memoized function.
* The result cache is exposed as the `cache` property on the memoized function.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to have its output memoized.
* @param {Function} [resolver] A function used to resolve the cache key.
* @returns {Function} Returns the new memoizing function.
* @example
*
* var fibonacci = _.memoize(function(n) {
* return n < 2 ? n : fibonacci(n - 1) + fibonacci(n - 2);
* });
*
* fibonacci(9)
* // => 34
*
* var data = {
* 'fred': { 'name': 'fred', 'age': 40 },
* 'pebbles': { 'name': 'pebbles', 'age': 1 }
* };
*
* // modifying the result cache
* var get = _.memoize(function(name) { return data[name]; }, _.identity);
* get('pebbles');
* // => { 'name': 'pebbles', 'age': 1 }
*
* get.cache.pebbles.name = 'penelope';
* get('pebbles');
* // => { 'name': 'penelope', 'age': 1 }
*/
function memoize(func, resolver) {
if (!isFunction(func)) {
throw new TypeError;
}
var memoized = function() {
var cache = memoized.cache,
key = resolver ? resolver.apply(this, arguments) : keyPrefix + arguments[0];
return hasOwnProperty.call(cache, key)
? cache[key]
: (cache[key] = func.apply(this, arguments));
}
memoized.cache = {};
return memoized;
}
/**
* Creates a function that is restricted to execute `func` once. Repeat calls to
* the function will return the value of the first call. The `func` is executed
* with the `this` binding of the created function.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to restrict.
* @returns {Function} Returns the new restricted function.
* @example
*
* var initialize = _.once(createApplication);
* initialize();
* initialize();
* // `initialize` executes `createApplication` once
*/
function once(func) {
var ran,
result;
if (!isFunction(func)) {
throw new TypeError;
}
return function() {
if (ran) {
return result;
}
ran = true;
result = func.apply(this, arguments);
// clear the `func` variable so the function may be garbage collected
func = null;
return result;
};
}
/**
* Creates a function that, when called, invokes `func` with any additional
* `partial` arguments prepended to those provided to the new function. This
* method is similar to `_.bind` except it does **not** alter the `this` binding.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to partially apply arguments to.
* @param {...*} [arg] Arguments to be partially applied.
* @returns {Function} Returns the new partially applied function.
* @example
*
* var greet = function(greeting, name) { return greeting + ' ' + name; };
* var hi = _.partial(greet, 'hi');
* hi('fred');
* // => 'hi fred'
*/
function partial(func) {
return createWrapper(func, 16, slice(arguments, 1));
}
/**
* This method is like `_.partial` except that `partial` arguments are
* appended to those provided to the new function.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to partially apply arguments to.
* @param {...*} [arg] Arguments to be partially applied.
* @returns {Function} Returns the new partially applied function.
* @example
*
* var defaultsDeep = _.partialRight(_.merge, _.defaults);
*
* var options = {
* 'variable': 'data',
* 'imports': { 'jq': $ }
* };
*
* defaultsDeep(options, _.templateSettings);
*
* options.variable
* // => 'data'
*
* options.imports
* // => { '_': _, 'jq': $ }
*/
function partialRight(func) {
return createWrapper(func, 32, null, slice(arguments, 1));
}
/**
* Creates a function that, when executed, will only call the `func` function
* at most once per every `wait` milliseconds. 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 will
* return the result of the last `func` call.
*
* Note: If `leading` and `trailing` options are `true` `func` will be called
* on the trailing edge of the timeout only if the the throttled function is
* invoked more than once during the `wait` timeout.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to throttle.
* @param {number} wait The number of milliseconds to throttle executions to.
* @param {Object} [options] The options object.
* @param {boolean} [options.leading=true] Specify execution on the leading edge of the timeout.
* @param {boolean} [options.trailing=true] Specify execution on the trailing edge of the timeout.
* @returns {Function} Returns the new throttled function.
* @example
*
* // avoid excessively updating the position while scrolling
* var throttled = _.throttle(updatePosition, 100);
* jQuery(window).on('scroll', throttled);
*
* // execute `renewToken` when the click event is fired, but not more than once every 5 minutes
* jQuery('.interactive').on('click', _.throttle(renewToken, 300000, {
* 'trailing': false
* }));
*/
function throttle(func, wait, options) {
var leading = true,
trailing = true;
if (!isFunction(func)) {
throw new TypeError;
}
if (options === false) {
leading = false;
} else if (isObject(options)) {
leading = 'leading' in options ? options.leading : leading;
trailing = 'trailing' in options ? options.trailing : trailing;
}
debounceOptions.leading = leading;
debounceOptions.maxWait = wait;
debounceOptions.trailing = trailing;
return debounce(func, wait, debounceOptions);
}
/**
* Creates a function that provides `value` to the wrapper function as its
* first argument. Additional arguments provided to the function are appended
* to those provided to the wrapper function. The wrapper is executed with
* the `this` binding of the created function.
*
* @static
* @memberOf _
* @category Functions
* @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, Wilma, & Pebbles');
* // => '<p>Fred, Wilma, &amp; Pebbles</p>'
*/
function wrap(value, wrapper) {
return createWrapper(wrapper, 16, [value]);
}
/*--------------------------------------------------------------------------*/
/**
* Creates a function that returns `value`.
*
* @static
* @memberOf _
* @category Utilities
* @param {*} value The value to return from the new function.
* @returns {Function} Returns the new function.
* @example
*
* var object = { 'name': 'fred' };
* var getter = _.constant(object);
* getter() === object;
* // => true
*/
function constant(value) {
return function() {
return value;
};
}
/**
* Produces a callback bound to an optional `thisArg`. If `func` is a property
* name the created callback will return the property value for a given element.
* If `func` is an object the created callback will return `true` for elements
* that contain the equivalent object properties, otherwise it will return `false`.
*
* @static
* @memberOf _
* @category Utilities
* @param {*} [func=identity] The value to convert to a callback.
* @param {*} [thisArg] The `this` binding of the created callback.
* @param {number} [argCount] The number of arguments the callback accepts.
* @returns {Function} Returns a callback function.
* @example
*
* var characters = [
* { 'name': 'barney', 'age': 36 },
* { 'name': 'fred', 'age': 40 }
* ];
*
* // wrap to create custom callback shorthands
* _.createCallback = _.wrap(_.createCallback, function(func, callback, thisArg) {
* var match = /^(.+?)__([gl]t)(.+)$/.exec(callback);
* return !match ? func(callback, thisArg) : function(object) {
* return match[2] == 'gt' ? object[match[1]] > match[3] : object[match[1]] < match[3];
* };
* });
*
* _.filter(characters, 'age__gt38');
* // => [{ 'name': 'fred', 'age': 40 }]
*/
function createCallback(func, thisArg, argCount) {
var type = typeof func;
if (func == null || type == 'function') {
return baseCreateCallback(func, thisArg, argCount);
}
// handle "_.pluck" style callback shorthands
if (type != 'object') {
return property(func);
}
var props = keys(func),
key = props[0],
a = func[key];
// handle "_.where" style callback shorthands
if (props.length == 1 && a === a && !isObject(a)) {
// fast path the common case of providing an object with a single
// property containing a primitive value
return function(object) {
var b = object[key];
return a === b && (a !== 0 || (1 / a == 1 / b));
};
}
return function(object) {
var length = props.length,
result = false;
while (length--) {
if (!(result = baseIsEqual(object[props[length]], func[props[length]], null, true))) {
break;
}
}
return result;
};
}
/**
* Converts the characters `&`, `<`, `>`, `"`, and `'` in `string` to their
* corresponding HTML entities.
*
* @static
* @memberOf _
* @category Utilities
* @param {string} string The string to escape.
* @returns {string} Returns the escaped string.
* @example
*
* _.escape('Fred, Wilma, & Pebbles');
* // => 'Fred, Wilma, &amp; Pebbles'
*/
function escape(string) {
return string == null ? '' : String(string).replace(reUnescapedHtml, escapeHtmlChar);
}
/**
* This method returns the first argument provided to it.
*
* @static
* @memberOf _
* @category Utilities
* @param {*} value Any value.
* @returns {*} Returns `value`.
* @example
*
* var object = { 'name': 'fred' };
* _.identity(object) === object;
* // => true
*/
function identity(value) {
return value;
}
/**
* Adds function properties of a source object to the destination object.
* If `object` is a function methods will be added to its prototype as well.
*
* @static
* @memberOf _
* @category Utilities
* @param {Function|Object} [object=lodash] object 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.
* @example
*
* function capitalize(string) {
* return string.charAt(0).toUpperCase() + string.slice(1).toLowerCase();
* }
*
* _.mixin({ 'capitalize': capitalize });
* _.capitalize('fred');
* // => 'Fred'
*
* _('fred').capitalize().value();
* // => 'Fred'
*
* _.mixin({ 'capitalize': capitalize }, { 'chain': false });
* _('fred').capitalize();
* // => 'Fred'
*/
function mixin(object, source, options) {
var chain = true,
methodNames = source && functions(source);
if (!source || (!options && !methodNames.length)) {
if (options == null) {
options = source;
}
ctor = lodashWrapper;
source = object;
object = lodash;
methodNames = functions(source);
}
if (options === false) {
chain = false;
} else if (isObject(options) && 'chain' in options) {
chain = options.chain;
}
var ctor = object,
isFunc = isFunction(ctor);
forEach(methodNames, function(methodName) {
var func = object[methodName] = source[methodName];
if (isFunc) {
ctor.prototype[methodName] = function() {
var chainAll = this.__chain__,
value = this.__wrapped__,
args = [value];
push.apply(args, arguments);
var result = func.apply(object, args);
if (chain || chainAll) {
if (value === result && isObject(result)) {
return this;
}
result = new ctor(result);
result.__chain__ = chainAll;
}
return result;
};
}
});
}
/**
* Reverts the '_' variable to its previous value and returns a reference to
* the `lodash` function.
*
* @static
* @memberOf _
* @category Utilities
* @returns {Function} Returns the `lodash` function.
* @example
*
* var lodash = _.noConflict();
*/
function noConflict() {
context._ = oldDash;
return this;
}
/**
* A no-operation function.
*
* @static
* @memberOf _
* @category Utilities
* @example
*
* var object = { 'name': 'fred' };
* _.noop(object) === undefined;
* // => true
*/
function noop() {
// no operation performed
}
/**
* Gets the number of milliseconds that have elapsed since the Unix epoch
* (1 January 1970 00:00:00 UTC).
*
* @static
* @memberOf _
* @category Utilities
* @example
*
* var stamp = _.now();
* _.defer(function() { console.log(_.now() - stamp); });
* // => logs the number of milliseconds it took for the deferred function to be called
*/
var now = isNative(now = Date.now) && now || function() {
return new Date().getTime();
};
/**
* Converts the given value into an integer of the specified radix.
* If `radix` is `undefined` or `0` a `radix` of `10` is used unless the
* `value` is a hexadecimal, in which case a `radix` of `16` is used.
*
* Note: This method avoids differences in native ES3 and ES5 `parseInt`
* implementations. See http://es5.github.io/#E.
*
* @static
* @memberOf _
* @category Utilities
* @param {string} value The value to parse.
* @param {number} [radix] The radix used to interpret the value to parse.
* @returns {number} Returns the new integer value.
* @example
*
* _.parseInt('08');
* // => 8
*/
var parseInt = nativeParseInt(whitespace + '08') == 8 ? nativeParseInt : function(value, radix) {
// Firefox < 21 and Opera < 15 follow the ES3 specified implementation of `parseInt`
return nativeParseInt(isString(value) ? value.replace(reLeadingSpacesAndZeros, '') : value, radix || 0);
};
/**
* Creates a "_.pluck" style function, which returns the `key` value of a
* given object.
*
* @static
* @memberOf _
* @category Utilities
* @param {string} key The name of the property to retrieve.
* @returns {Function} Returns the new function.
* @example
*
* var characters = [
* { 'name': 'fred', 'age': 40 },
* { 'name': 'barney', 'age': 36 }
* ];
*
* var getName = _.property('name');
*
* _.map(characters, getName);
* // => ['barney', 'fred']
*
* _.sortBy(characters, getName);
* // => [{ 'name': 'barney', 'age': 36 }, { 'name': 'fred', 'age': 40 }]
*/
function property(key) {
return function(object) {
return object[key];
};
}
/**
* Produces a random number between `min` and `max` (inclusive). If only one
* argument is provided a number between `0` and the given number will be
* returned. If `floating` is truey or either `min` or `max` are floats a
* floating-point number will be returned instead of an integer.
*
* @static
* @memberOf _
* @category Utilities
* @param {number} [min=0] The minimum possible value.
* @param {number} [max=1] The maximum possible value.
* @param {boolean} [floating=false] Specify returning a floating-point number.
* @returns {number} Returns a 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) {
var noMin = min == null,
noMax = max == null;
if (floating == null) {
if (typeof min == 'boolean' && noMax) {
floating = min;
min = 1;
}
else if (!noMax && typeof max == 'boolean') {
floating = max;
noMax = true;
}
}
if (noMin && noMax) {
max = 1;
}
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);
}
/**
* Resolves the value of property `key` on `object`. If `key` is a function
* it will be invoked with the `this` binding of `object` and its result returned,
* else the property value is returned. If `object` is falsey then `undefined`
* is returned.
*
* @static
* @memberOf _
* @category Utilities
* @param {Object} object The object to inspect.
* @param {string} key The name of the property to resolve.
* @returns {*} Returns the resolved value.
* @example
*
* var object = {
* 'cheese': 'crumpets',
* 'stuff': function() {
* return 'nonsense';
* }
* };
*
* _.result(object, 'cheese');
* // => 'crumpets'
*
* _.result(object, 'stuff');
* // => 'nonsense'
*/
function result(object, key) {
if (object) {
var value = object[key];
return isFunction(value) ? object[key]() : value;
}
}
/**
* A micro-templating method that handles arbitrary delimiters, preserves
* whitespace, and correctly escapes quotes within interpolated code.
*
* Note: In the development build, `_.template` utilizes sourceURLs for easier
* debugging. See http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl
*
* For more information on precompiling templates see:
* http://lodash.com/custom-builds
*
* For more information on Chrome extension sandboxes see:
* http://developer.chrome.com/stable/extensions/sandboxingEval.html
*
* @static
* @memberOf _
* @category Utilities
* @param {string} text The template text.
* @param {Object} data The data object used to populate the text.
* @param {Object} [options] The options object.
* @param {RegExp} [options.escape] The "escape" delimiter.
* @param {RegExp} [options.evaluate] The "evaluate" delimiter.
* @param {Object} [options.imports] An object to import into the template as local variables.
* @param {RegExp} [options.interpolate] The "interpolate" delimiter.
* @param {string} [sourceURL] The sourceURL of the template's compiled source.
* @param {string} [variable] The data object variable name.
* @returns {Function|string} Returns a compiled function when no `data` object
* is given, else it returns the interpolated text.
* @example
*
* // using the "interpolate" delimiter to create a compiled template
* var compiled = _.template('hello <%= name %>');
* compiled({ 'name': 'fred' });
* // => 'hello fred'
*
* // using the "escape" delimiter to escape HTML in data property values
* _.template('<b><%- value %></b>', { 'value': '<script>' });
* // => '<b>&lt;script&gt;</b>'
*
* // using the "evaluate" delimiter to generate HTML
* var list = '<% _.forEach(people, function(name) { %><li><%- name %></li><% }); %>';
* _.template(list, { 'people': ['fred', 'barney'] });
* // => '<li>fred</li><li>barney</li>'
*
* // using the ES6 delimiter as an alternative to the default "interpolate" delimiter
* _.template('hello ${ name }', { 'name': 'pebbles' });
* // => 'hello pebbles'
*
* // using the internal `print` function in "evaluate" delimiters
* _.template('<% print("hello " + name); %>!', { 'name': 'barney' });
* // => 'hello barney!'
*
* // using a custom template delimiters
* _.templateSettings = {
* 'interpolate': /{{([\s\S]+?)}}/g
* };
*
* _.template('hello {{ name }}!', { 'name': 'mustache' });
* // => 'hello mustache!'
*
* // using the `imports` option to import jQuery
* var list = '<% jq.each(people, function(name) { %><li><%- name %></li><% }); %>';
* _.template(list, { 'people': ['fred', 'barney'] }, { 'imports': { 'jq': jQuery } });
* // => '<li>fred</li><li>barney</li>'
*
* // using the `sourceURL` option to specify a custom sourceURL for the template
* var compiled = _.template('hello <%= name %>', null, { '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.name %>!', null, { 'variable': 'data' });
* compiled.source;
* // => function(data) {
* var __t, __p = '', __e = _.escape;
* __p += 'hi ' + ((__t = ( data.name )) == 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(text, data, options) {
// 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;
text = String(text || '');
// avoid missing dependencies when `iteratorTemplate` is not defined
options = defaults({}, options, settings);
var imports = defaults({}, options.imports, settings.imports),
importsKeys = keys(imports),
importsValues = values(imports);
var 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');
text.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
interpolateValue || (interpolateValue = esTemplateValue);
// escape characters that cannot be included in string literals
source += text.slice(index, offset).replace(reUnescapedString, escapeStringChar);
// replace delimiters with snippets
if (escapeValue) {
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,
hasVariable = variable;
if (!hasVariable) {
variable = 'obj';
source = 'with (' + variable + ') {\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 + ') {\n' +
(hasVariable ? '' : variable + ' || (' + variable + ' = {});\n') +
"var __t, __p = '', __e = _.escape" +
(isEvaluating
? ', __j = Array.prototype.join;\n' +
"function print() { __p += __j.call(arguments, '') }\n"
: ';\n'
) +
source +
'return __p\n}';
// Use a sourceURL for easier debugging.
// http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl
var sourceURL = '\n/*\n//# sourceURL=' + (options.sourceURL || '/lodash/template/source[' + (templateCounter++) + ']') + '\n*/';
try {
var result = Function(importsKeys, 'return ' + source + sourceURL).apply(undefined, importsValues);
} catch(e) {
e.source = source;
throw e;
}
if (data) {
return result(data);
}
// provide the compiled function's source by its `toString` method, in
// supported environments, or the `source` property as a convenience for
// inlining compiled templates during the build process
result.source = source;
return result;
}
/**
* Executes the callback `n` times, returning an array of the results
* of each callback execution. The callback is bound to `thisArg` and invoked
* with one argument; (index).
*
* @static
* @memberOf _
* @category Utilities
* @param {number} n The number of times to execute the callback.
* @param {Function} callback The function called per iteration.
* @param {*} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns an array of the results of each `callback` execution.
* @example
*
* var diceRolls = _.times(3, _.partial(_.random, 1, 6));
* // => [3, 6, 4]
*
* _.times(3, function(n) { mage.castSpell(n); });
* // => calls `mage.castSpell(n)` three times, passing `n` of `0`, `1`, and `2` respectively
*
* _.times(3, function(n) { this.cast(n); }, mage);
* // => also calls `mage.castSpell(n)` three times
*/
function times(n, callback, thisArg) {
n = (n = +n) > -1 ? n : 0;
var index = -1,
result = Array(n);
callback = baseCreateCallback(callback, thisArg, 1);
while (++index < n) {
result[index] = callback(index);
}
return result;
}
/**
* The inverse of `_.escape` this method converts the HTML entities
* `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#39;` in `string` to their
* corresponding characters.
*
* @static
* @memberOf _
* @category Utilities
* @param {string} string The string to unescape.
* @returns {string} Returns the unescaped string.
* @example
*
* _.unescape('Fred, Barney &amp; Pebbles');
* // => 'Fred, Barney & Pebbles'
*/
function unescape(string) {
return string == null ? '' : String(string).replace(reEscapedHtml, unescapeHtmlChar);
}
/**
* Generates a unique ID. If `prefix` is provided the ID will be appended to it.
*
* @static
* @memberOf _
* @category Utilities
* @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 String(prefix == null ? '' : prefix) + id;
}
/*--------------------------------------------------------------------------*/
/**
* Creates a `lodash` object that wraps the given value with explicit
* method chaining enabled.
*
* @static
* @memberOf _
* @category Chaining
* @param {*} value The value to wrap.
* @returns {Object} Returns the wrapper object.
* @example
*
* var characters = [
* { 'name': 'barney', 'age': 36 },
* { 'name': 'fred', 'age': 40 },
* { 'name': 'pebbles', 'age': 1 }
* ];
*
* var youngest = _.chain(characters)
* .sortBy('age')
* .map(function(chr) { return chr.name + ' is ' + chr.age; })
* .first()
* .value();
* // => 'pebbles is 1'
*/
function chain(value) {
value = new lodashWrapper(value);
value.__chain__ = true;
return value;
}
/**
* Invokes `interceptor` with the `value` as the first argument and then
* returns `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 Chaining
* @param {*} value The value to provide to `interceptor`.
* @param {Function} interceptor The function to invoke.
* @returns {*} Returns `value`.
* @example
*
* _([1, 2, 3, 4])
* .tap(function(array) { array.pop(); })
* .reverse()
* .value();
* // => [3, 2, 1]
*/
function tap(value, interceptor) {
interceptor(value);
return value;
}
/**
* Enables explicit method chaining on the wrapper object.
*
* @name chain
* @memberOf _
* @category Chaining
* @returns {*} Returns the wrapper object.
* @example
*
* var characters = [
* { 'name': 'barney', 'age': 36 },
* { 'name': 'fred', 'age': 40 }
* ];
*
* // without explicit chaining
* _(characters).first();
* // => { 'name': 'barney', 'age': 36 }
*
* // with explicit chaining
* _(characters).chain()
* .first()
* .pick('age')
* .value();
* // => { 'age': 36 }
*/
function wrapperChain() {
this.__chain__ = true;
return this;
}
/**
* Produces the `toString` result of the wrapped value.
*
* @name toString
* @memberOf _
* @category Chaining
* @returns {string} Returns the string result.
* @example
*
* _([1, 2, 3]).toString();
* // => '1,2,3'
*/
function wrapperToString() {
return String(this.__wrapped__);
}
/**
* Extracts the wrapped value.
*
* @name valueOf
* @memberOf _
* @alias value
* @category Chaining
* @returns {*} Returns the wrapped value.
* @example
*
* _([1, 2, 3]).valueOf();
* // => [1, 2, 3]
*/
function wrapperValueOf() {
return this.__wrapped__;
}
/*--------------------------------------------------------------------------*/
// add functions that return wrapped values when chaining
lodash.after = after;
lodash.assign = assign;
lodash.at = at;
lodash.bind = bind;
lodash.bindAll = bindAll;
lodash.bindKey = bindKey;
lodash.chain = chain;
lodash.compact = compact;
lodash.compose = compose;
lodash.constant = constant;
lodash.countBy = countBy;
lodash.create = create;
lodash.createCallback = createCallback;
lodash.curry = curry;
lodash.debounce = debounce;
lodash.defaults = defaults;
lodash.defer = defer;
lodash.delay = delay;
lodash.difference = difference;
lodash.filter = filter;
lodash.flatten = flatten;
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.map = map;
lodash.mapValues = mapValues;
lodash.max = max;
lodash.memoize = memoize;
lodash.merge = merge;
lodash.min = min;
lodash.omit = omit;
lodash.once = once;
lodash.pairs = pairs;
lodash.partial = partial;
lodash.partialRight = partialRight;
lodash.pick = pick;
lodash.pluck = pluck;
lodash.property = property;
lodash.pull = pull;
lodash.range = range;
lodash.reject = reject;
lodash.remove = remove;
lodash.rest = rest;
lodash.shuffle = shuffle;
lodash.sortBy = sortBy;
lodash.tap = tap;
lodash.throttle = throttle;
lodash.times = times;
lodash.toArray = toArray;
lodash.transform = transform;
lodash.union = union;
lodash.uniq = uniq;
lodash.values = values;
lodash.where = where;
lodash.without = without;
lodash.wrap = wrap;
lodash.xor = xor;
lodash.zip = zip;
lodash.zipObject = zipObject;
// add aliases
lodash.collect = map;
lodash.drop = rest;
lodash.each = forEach;
lodash.eachRight = forEachRight;
lodash.extend = assign;
lodash.methods = functions;
lodash.object = zipObject;
lodash.select = filter;
lodash.tail = rest;
lodash.unique = uniq;
lodash.unzip = zip;
// add functions to `lodash.prototype`
mixin(lodash);
/*--------------------------------------------------------------------------*/
// add functions that return unwrapped values when chaining
lodash.clone = clone;
lodash.cloneDeep = cloneDeep;
lodash.contains = contains;
lodash.escape = escape;
lodash.every = every;
lodash.find = find;
lodash.findIndex = findIndex;
lodash.findKey = findKey;
lodash.findLast = findLast;
lodash.findLastIndex = findLastIndex;
lodash.findLastKey = findLastKey;
lodash.has = has;
lodash.identity = identity;
lodash.indexOf = indexOf;
lodash.isArguments = isArguments;
lodash.isArray = isArray;
lodash.isBoolean = isBoolean;
lodash.isDate = isDate;
lodash.isElement = isElement;
lodash.isEmpty = isEmpty;
lodash.isEqual = isEqual;
lodash.isFinite = isFinite;
lodash.isFunction = isFunction;
lodash.isNaN = isNaN;
lodash.isNull = isNull;
lodash.isNumber = isNumber;
lodash.isObject = isObject;
lodash.isPlainObject = isPlainObject;
lodash.isRegExp = isRegExp;
lodash.isString = isString;
lodash.isUndefined = isUndefined;
lodash.lastIndexOf = lastIndexOf;
lodash.mixin = mixin;
lodash.noConflict = noConflict;
lodash.noop = noop;
lodash.now = now;
lodash.parseInt = parseInt;
lodash.random = random;
lodash.reduce = reduce;
lodash.reduceRight = reduceRight;
lodash.result = result;
lodash.runInContext = runInContext;
lodash.size = size;
lodash.some = some;
lodash.sortedIndex = sortedIndex;
lodash.template = template;
lodash.unescape = unescape;
lodash.uniqueId = uniqueId;
// add aliases
lodash.all = every;
lodash.any = some;
lodash.detect = find;
lodash.findWhere = find;
lodash.foldl = reduce;
lodash.foldr = reduceRight;
lodash.include = contains;
lodash.inject = reduce;
mixin(function() {
var source = {}
forOwn(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.first = first;
lodash.last = last;
lodash.sample = sample;
// add aliases
lodash.take = first;
lodash.head = first;
forOwn(lodash, function(func, methodName) {
var callbackable = methodName !== 'sample';
if (!lodash.prototype[methodName]) {
lodash.prototype[methodName]= function(n, guard) {
var chainAll = this.__chain__,
result = func(this.__wrapped__, n, guard);
return !chainAll && (n == null || (guard && !(callbackable && typeof n == 'function')))
? result
: new lodashWrapper(result, chainAll);
};
}
});
/*--------------------------------------------------------------------------*/
/**
* The semantic version number.
*
* @static
* @memberOf _
* @type string
*/
lodash.VERSION = '2.4.1';
// add "Chaining" functions to the wrapper
lodash.prototype.chain = wrapperChain;
lodash.prototype.toString = wrapperToString;
lodash.prototype.value = wrapperValueOf;
lodash.prototype.valueOf = wrapperValueOf;
// add `Array` functions that return unwrapped values
forEach(['join', 'pop', 'shift'], function(methodName) {
var func = arrayRef[methodName];
lodash.prototype[methodName] = function() {
var chainAll = this.__chain__,
result = func.apply(this.__wrapped__, arguments);
return chainAll
? new lodashWrapper(result, chainAll)
: result;
};
});
// add `Array` functions that return the existing wrapped value
forEach(['push', 'reverse', 'sort', 'unshift'], function(methodName) {
var func = arrayRef[methodName];
lodash.prototype[methodName] = function() {
func.apply(this.__wrapped__, arguments);
return this;
};
});
// add `Array` functions that return new wrapped values
forEach(['concat', 'slice', 'splice'], function(methodName) {
var func = arrayRef[methodName];
lodash.prototype[methodName] = function() {
return new lodashWrapper(func.apply(this.__wrapped__, arguments), this.__chain__);
};
});
return lodash;
}
/*--------------------------------------------------------------------------*/
// expose Lo-Dash
var _ = runInContext();
// some AMD build optimizers like r.js check for condition patterns like the following:
if (false && typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
// Expose Lo-Dash to the global object even when an AMD loader is present in
// case Lo-Dash is loaded with a RequireJS shim config.
// See http://requirejs.org/docs/api.html#config-shim
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) {
// in Node.js or RingoJS
if (moduleExports) {
(freeModule.exports = _)._ = _;
}
// in Narwhal or Rhino -require
else {
freeExports._ = _;
}
}
else {
// in a browser or Rhino
root._ = _;
}
}.call(this));
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],20:[function(require,module,exports){
"use strict";
var window = require("global/window")
var isFunction = require("is-function")
var parseHeaders = require("parse-headers")
var xtend = require("xtend")
module.exports = createXHR
createXHR.XMLHttpRequest = window.XMLHttpRequest || noop
createXHR.XDomainRequest = "withCredentials" in (new createXHR.XMLHttpRequest()) ? createXHR.XMLHttpRequest : window.XDomainRequest
forEachArray(["get", "put", "post", "patch", "head", "delete"], function(method) {
createXHR[method === "delete" ? "del" : method] = function(uri, options, callback) {
options = initParams(uri, options, callback)
options.method = method.toUpperCase()
return _createXHR(options)
}
})
function forEachArray(array, iterator) {
for (var i = 0; i < array.length; i++) {
iterator(array[i])
}
}
function isEmpty(obj){
for(var i in obj){
if(obj.hasOwnProperty(i)) return false
}
return true
}
function initParams(uri, options, callback) {
var params = uri
if (isFunction(options)) {
callback = options
if (typeof uri === "string") {
params = {uri:uri}
}
} else {
params = xtend(options, {uri: uri})
}
params.callback = callback
return params
}
function createXHR(uri, options, callback) {
options = initParams(uri, options, callback)
return _createXHR(options)
}
function _createXHR(options) {
if(typeof options.callback === "undefined"){
throw new Error("callback argument missing")
}
var called = false
var callback = function cbOnce(err, response, body){
if(!called){
called = true
options.callback(err, response, body)
}
}
function readystatechange() {
if (xhr.readyState === 4) {
loadFunc()
}
}
function getBody() {
// Chrome with requestType=blob throws errors arround when even testing access to responseText
var body = undefined
if (xhr.response) {
body = xhr.response
} else {
body = xhr.responseText || getXml(xhr)
}
if (isJson) {
try {
body = JSON.parse(body)
} catch (e) {}
}
return body
}
function errorFunc(evt) {
clearTimeout(timeoutTimer)
if(!(evt instanceof Error)){
evt = new Error("" + (evt || "Unknown XMLHttpRequest Error") )
}
evt.statusCode = 0
return callback(evt, failureResponse)
}
// will load the data & process the response in a special response object
function loadFunc() {
if (aborted) return
var status
clearTimeout(timeoutTimer)
if(options.useXDR && xhr.status===undefined) {
//IE8 CORS GET successful response doesn't have a status field, but body is fine
status = 200
} else {
status = (xhr.status === 1223 ? 204 : xhr.status)
}
var response = failureResponse
var err = null
if (status !== 0){
response = {
body: getBody(),
statusCode: status,
method: method,
headers: {},
url: uri,
rawRequest: xhr
}
if(xhr.getAllResponseHeaders){ //remember xhr can in fact be XDR for CORS in IE
response.headers = parseHeaders(xhr.getAllResponseHeaders())
}
} else {
err = new Error("Internal XMLHttpRequest Error")
}
return callback(err, response, response.body)
}
var xhr = options.xhr || null
if (!xhr) {
if (options.cors || options.useXDR) {
xhr = new createXHR.XDomainRequest()
}else{
xhr = new createXHR.XMLHttpRequest()
}
}
var key
var aborted
var uri = xhr.url = options.uri || options.url
var method = xhr.method = options.method || "GET"
var body = options.body || options.data
var headers = xhr.headers = options.headers || {}
var sync = !!options.sync
var isJson = false
var timeoutTimer
var failureResponse = {
body: undefined,
headers: {},
statusCode: 0,
method: method,
url: uri,
rawRequest: xhr
}
if ("json" in options && options.json !== false) {
isJson = true
headers["accept"] || headers["Accept"] || (headers["Accept"] = "application/json") //Don't override existing accept header declared by user
if (method !== "GET" && method !== "HEAD") {
headers["content-type"] || headers["Content-Type"] || (headers["Content-Type"] = "application/json") //Don't override existing accept header declared by user
body = JSON.stringify(options.json === true ? body : options.json)
}
}
xhr.onreadystatechange = readystatechange
xhr.onload = loadFunc
xhr.onerror = errorFunc
// IE9 must have onprogress be set to a unique function.
xhr.onprogress = function () {
// IE must die
}
xhr.onabort = function(){
aborted = true;
}
xhr.ontimeout = errorFunc
xhr.open(method, uri, !sync, options.username, options.password)
//has to be after open
if(!sync) {
xhr.withCredentials = !!options.withCredentials
}
// Cannot set timeout with sync request
// not setting timeout on the xhr object, because of old webkits etc. not handling that correctly
// both npm's request and jquery 1.x use this kind of timeout, so this is being consistent
if (!sync && options.timeout > 0 ) {
timeoutTimer = setTimeout(function(){
if (aborted) return
aborted = true//IE9 may still call readystatechange
xhr.abort("timeout")
var e = new Error("XMLHttpRequest timeout")
e.code = "ETIMEDOUT"
errorFunc(e)
}, options.timeout )
}
if (xhr.setRequestHeader) {
for(key in headers){
if(headers.hasOwnProperty(key)){
xhr.setRequestHeader(key, headers[key])
}
}
} else if (options.headers && !isEmpty(options.headers)) {
throw new Error("Headers cannot be set on an XDomainRequest object")
}
if ("responseType" in options) {
xhr.responseType = options.responseType
}
if ("beforeSend" in options &&
typeof options.beforeSend === "function"
) {
options.beforeSend(xhr)
}
// Microsoft Edge browser sends "undefined" when send is called with undefined value.
// XMLHttpRequest spec says to pass null as body to indicate no body
// See https://github.com/naugtur/xhr/issues/100.
xhr.send(body || null)
return xhr
}
function getXml(xhr) {
if (xhr.responseType === "document") {
return xhr.responseXML
}
var firefoxBugTakenEffect = xhr.status === 204 && xhr.responseXML && xhr.responseXML.documentElement.nodeName === "parsererror"
if (xhr.responseType === "" && !firefoxBugTakenEffect) {
return xhr.responseXML
}
return null
}
function noop() {}
},{"global/window":21,"is-function":22,"parse-headers":25,"xtend":26}],21:[function(require,module,exports){
(function (global){
if (typeof window !== "undefined") {
module.exports = window;
} else if (typeof global !== "undefined") {
module.exports = global;
} else if (typeof self !== "undefined"){
module.exports = self;
} else {
module.exports = {};
}
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],22:[function(require,module,exports){
module.exports = isFunction
var toString = Object.prototype.toString
function isFunction (fn) {
var string = toString.call(fn)
return string === '[object Function]' ||
(typeof fn === 'function' && string !== '[object RegExp]') ||
(typeof window !== 'undefined' &&
// IE8 and below
(fn === window.setTimeout ||
fn === window.alert ||
fn === window.confirm ||
fn === window.prompt))
};
},{}],23:[function(require,module,exports){
var isFunction = require('is-function')
module.exports = forEach
var toString = Object.prototype.toString
var hasOwnProperty = Object.prototype.hasOwnProperty
function forEach(list, iterator, context) {
if (!isFunction(iterator)) {
throw new TypeError('iterator must be a function')
}
if (arguments.length < 3) {
context = this
}
if (toString.call(list) === '[object Array]')
forEachArray(list, iterator, context)
else if (typeof list === 'string')
forEachString(list, iterator, context)
else
forEachObject(list, iterator, context)
}
function forEachArray(array, iterator, context) {
for (var i = 0, len = array.length; i < len; i++) {
if (hasOwnProperty.call(array, i)) {
iterator.call(context, array[i], i, array)
}
}
}
function forEachString(string, iterator, context) {
for (var i = 0, len = string.length; i < len; i++) {
// no such thing as a sparse string.
iterator.call(context, string.charAt(i), i, string)
}
}
function forEachObject(object, iterator, context) {
for (var k in object) {
if (hasOwnProperty.call(object, k)) {
iterator.call(context, object[k], k, object)
}
}
}
},{"is-function":22}],24:[function(require,module,exports){
exports = module.exports = trim;
function trim(str){
return str.replace(/^\s*|\s*$/g, '');
}
exports.left = function(str){
return str.replace(/^\s*/, '');
};
exports.right = function(str){
return str.replace(/\s*$/, '');
};
},{}],25:[function(require,module,exports){
var trim = require('trim')
, forEach = require('for-each')
, isArray = function(arg) {
return Object.prototype.toString.call(arg) === '[object Array]';
}
module.exports = function (headers) {
if (!headers)
return {}
var result = {}
forEach(
trim(headers).split('\n')
, function (row) {
var index = row.indexOf(':')
, key = trim(row.slice(0, index)).toLowerCase()
, value = trim(row.slice(index + 1))
if (typeof(result[key]) === 'undefined') {
result[key] = value
} else if (isArray(result[key])) {
result[key].push(value)
} else {
result[key] = [ result[key], value ]
}
}
)
return result
}
},{"for-each":23,"trim":24}],26:[function(require,module,exports){
module.exports = extend
var hasOwnProperty = Object.prototype.hasOwnProperty;
function extend() {
var target = {}
for (var i = 0; i < arguments.length; i++) {
var source = arguments[i]
for (var key in source) {
if (hasOwnProperty.call(source, key)) {
target[key] = source[key]
}
}
}
return target
}
},{}],"airtable":[function(require,module,exports){
(function (process){
'use strict';
var assert = require('assert');
var Class = require('./class');
var Base = require('./base');
var Record = require('./record');
var Table = require('./table');
var Airtable = Class.extend({
init: function(opts) {
opts = opts || {};
this._apiKey = opts.apiKey || Airtable.apiKey || Airtable.default_config.apiKey;
this._endpointUrl = opts.endpointUrl || Airtable.endpointUrl || Airtable.default_config.endpointUrl;
this._apiVersion = opts.apiVersion || Airtable.apiVersion || Airtable.default_config.apiVersion;
this._apiVersionMajor = this._apiVersion.split('.')[0];
this._allowUnauthorizedSsl = opts.allowUnauthorizedSsl || Airtable.allowUnauthorizedSsl || Airtable.default_config.allowUnauthorizedSsl;
this._noRetryIfRateLimited = opts.noRetryIfRateLimited || Airtable.noRetryIfRateLimited || Airtable.default_config.noRetryIfRateLimited;
this.requestTimeout = opts.requestTimeout || Airtable.default_config.requestTimeout;
assert(this._apiKey, 'API key is required to connect to Airtable');
},
base: function(baseId) {
return Base.createFunctor(this, baseId);
}
});
Airtable.default_config = {
endpointUrl: process.env.AIRTABLE_ENDPOINT_URL || 'https://api.airtable.com',
apiVersion: '0.1.0',
apiKey: process.env.AIRTABLE_API_KEY,
allowUnauthorizedSsl: false,
noRetryIfRateLimited: false,
requestTimeout: 300 * 1000, // 5 minutes
};
Airtable.configure = function(opts) {
Airtable.apiKey = opts.apiKey;
Airtable.endpointUrl = opts.endpointUrl;
Airtable.apiVersion = opts.apiVersion;
Airtable.allowUnauthorizedSsl = opts.allowUnauthorizedSsl;
Airtable.noRetryIfRateLimited = opts.noRetryIfRateLimited;
};
Airtable.base = function(baseId) {
return new Airtable().base(baseId);
};
Airtable.Base = Base;
Airtable.Record = Record;
Airtable.Table = Table;
module.exports = Airtable;
}).call(this,require('_process'))
},{"./base":2,"./class":4,"./record":9,"./table":11,"_process":16,"assert":14}]},{},["airtable"]);
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