| const o = { a: true }; | |
| [...Array(9)].map(Function.prototype.valueOf, o); |
| const assert = function (condition) { | |
| if (condition !== true && condition !== false) { | |
| throw new TypeError("Assertions should be only of booleans; you're writing your spec wrong."); | |
| } | |
| if (!condition) { | |
| throw new Error("Specification-level assertion failure"); | |
| } | |
| }; | |
| function whatIs(this$) { |
| // O(1) | |
| const todo = (state, action) => { | |
| const actions = { | |
| ADD_TODO: () => { | |
| return { | |
| id: action.id, | |
| text: action.text, | |
| completed: false | |
| } | |
| }, |
| lib | notes |
|---|---|
| babel-cli | basically what you need always |
| babel-register | this is only for dev or local use and not production or browser |
| babel-core | only necessary if using babel programatically |
| babel-polyfill | shims inconsistent browser functions like Array.from, etc. |
| babel-runtime | only helps at a code level by optimizing babel helpers into a single runtime |
use presets
| <?php | |
| function north_cast_api_data($content) { | |
| if (is_numeric($content)) $content = intval($content); | |
| else { | |
| $unserialized_content = @unserialize($content); | |
| // we got serialized content | |
| if ($unserialized_content !== false) { | |
| // make sure that integers are represented as such, instead of str | |
| foreach ($unserialized_content as $fn => &$c) { | |
| if (is_numeric($c)) $c = intval($c); |
| // promises != callbacks | |
| function doSomeAction() { | |
| // like $.ajax or $.getJSON from jQuery, fetch will similarly reach out to a remote/local | |
| // destination over HTTP, return a Promise object (the result of the `window.fetch`) that | |
| // we can listen to by simply chaining the `then` method, which is provided by the Promise | |
| // object that is returned by `window.fetch`. | |
| window.fetch(new Request('http://website.com/products.json')).then(function(response) { | |
| imFinished(response) | |
| }) | |
| } |
| // callbacks != promises | |
| function doSomeAction() { | |
| return true | |
| } | |
| function appleTree() { | |
| return doSomeAction() | |
| } | |
| appleTree() |
| // require() some stuff from npm (like you were using browserify) | |
| // and then hit Run Code to run it on the right | |
| var locale2 = require('locale2'); | |
| document.write(locale2); |
| /** | |
| * Michael Scott Hertzberg <mshertzberg@gmail.com> (http://hertzber.gs) | |
| * | |
| * recursively check for set localStorage value every 100ms. | |
| * this will also safely clear the timeout once found. | |
| * can be used callback style or directly. | |
| * functionally pure. | |
| */ | |
| function waitForLocalStorage(key, cb, timer) { | |
| if (!localStorage.getItem(key)) return (timer = setTimeout(waitForLocalStorage.bind(null, key, cb), 100)) |
| { | |
| easeOutCubic: "cubic-bezier(.215,.61,.355,1)", | |
| easeInOutCubic: "cubic-bezier(.645,.045,.355,1)", | |
| easeInCirc: "cubic-bezier(.6,.04,.98,.335)", | |
| easeOutCirc: "cubic-bezier(.075,.82,.165,1)", | |
| easeInOutCirc: "cubic-bezier(.785,.135,.15,.86)", | |
| easeInExpo: "cubic-bezier(.95,.05,.795,.035)", | |
| easeOutExpo: "cubic-bezier(.19,1,.22,1)", | |
| easeInOutExpo: "cubic-bezier(1,0,0,1)", | |
| easeInQuad: "cubic-bezier(.55,.085,.68,.53)", |