GitHub - yosuke-furukawa/tower-of-babel: Tower of babel is tour of babelYou signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session. Dismiss alert
Array.{of, from}が実装された - JS.next
概要 配列を作る２つのArrayのスタティックメソッドが実装された。 Array.from(arrayLike, mapfn?, thisArg?) 配列のようなものから配列を作る便利なメソッド。 例 DOMに配列のメソッドを適応したい時、 今までは [].slice.call(document.getElementsByTagNames('p')).map(mapfn, thisArg) これがこう書ける Array.from(document.getElementsByTagNames('p'), mapfn, thisArg) 外部参考リンク Firefox 32 で Array.from が実装された - hogehoge @teramako Array.of(...items) 引数から配列を作るメソッド。 例 Array.of(1) // [1] Array.of(1, 2,
Changeset 182134 – WebKit — Start the features.json files
Show lines around each change Show the changes in full context Timestamp: Mar 30, 2015, 12:20:43 AM (10 years ago) Author: benjamin@webkit.org Message: Start the features.json files https://bugs.webkit.org/show_bug.cgi?id=143207 Reviewed by Darin Adler. Source/JavaScriptCore: Start the features.json files to have something to experiment with for the UI. features.json: Added. Source/WebCore: featu
ES6 generators in depth
This blog post is outdated. Please read chapter “Generators” in “Exploring ES6”. This blog post is part of a series on iteration in ES6: Iterables and iterators in ECMAScript 6 ES6 generators in depth Generators, a new feature of ECMAScript 6 [1], are functions that can be paused and resumed. This helps with many applications: iterators, asynchronous programming, etc. This blog post explains how g
new.targetメタプロパティについて - JS.next
概要 「new.target」とは、ES2015で導入されたビルトインクラスのサブクラスを作る上で欠かせない存在である[[newTarget]]を取得するためのメタプロパティである。 従来の問題点 ES5まではArrayのようなビルトインクラスを適切に継承したサブクラスを作ることができなかった。 ES2015からのプロトタイプ設定機能を使うと可能であり、このようになる。 class Stack extends Array { constructor( ...args ) { var stack = new Array( ...args ) return Object.setPrototypeOf( stack, Stack.prototype ) } clear() { this.length = 0 } } しかし毎回このように書かないといけないのはスマートではない。 できればこの様に書
Reflect APIが実装された - JS.next
概要 Reflectオブジェクトはグローバルに存在し、演算子がするような作用や、内部的に行われているような作用をメソッドの形で提供する。 記事更新履歴 [2016/03/23] ES2016でenumerateトラップが削除されるのに対応 [2015/03/24] 公開 実装されたメソッド Reflect.has ( target, key ) [4.8.9] 「 key in target 」とほぼ同じ*1。 Reflect.get ( target, key, receiver? ) [4.8.9] 「 target[ key ] 」とほぼ同じ*1だが、オプションでゲッターのthisとなるreceiverを指定できる。 Reflect.set ( target, key, value, receiver? ) [4.8.187] 「 target[ key = value ] 」
Understanding ECMAScript 6: Class and Inheritance — SitePoint
Stay Relevant and Grow Your Career in TechPremium ResultsPublish articles on SitePointDaily curated jobsLearning PathsDiscounts to dev toolsStart Free Trial7 Day Free Trial. Cancel Anytime. Key Takeaways ES6 allows developers to simulate classes and inheritance with JavaScript, a prototype-oriented language, facilitating the creation of large applications for the web. ES6 introduces new semantics
Moving Codecademy to ECMAScript 6, Webpack, and React
Moving Codecademy to ES6, Webpack, and React How we build our web-based learning interface March 18, 2015 When Codecademy was born in the summer of 2011, the natural choice for a frontend stack was Backbone + jQuery. Backbone was less than a year old and widely considered the state-of-the-art framework for creating frontend applications. Combined with jQuery, one could do a lot of novel things wit
material-fluxというFluxライブラリをREADME駆動で開発した
material-fluxというFluxアーキテクチャの実装ライブラリを書きました。 Fluxって何?と思う人は以下などを見ると良さそうな気がします。 React: Flux Architecture - Video Tutorial Series @eggheadio Fluxとはなんだったのか + misc at 2014 - snyk_s log Fluxアーキテクチャの覚え書きを書いた - snyk_s log The Flux Quick Start Guide Getting To Know Flux, the React.js Architecture ♥ Scotch What the Flux? (On Flux, DDD, and CQRS) — Jack Hsu なぜ作ったか IDE readable(machine readable)なライブラリが欲しかったのがひと
Advancing JavaScript without breaking the web | Christian Heilmann
Current advancements in ECMAScript are a great opportunity, but also a challenge for the web. Whilst adding new, important features we’re also running the danger of breaking backwards compatibility. These are my notes for a talk I gave at the MunichJS meetup last week. You can see the slides on Slideshare and watch a screencast on YouTube. There will also be a recording of the talk available once
i18n with tagged template literals in ECMAScript 2015
One of the new features of ECMAScript 2015 are template literals. The simplest use cases for template literals are creating multiline strings, and doing string interpolation. Multiline string: let s = `This is a multiline string`; String interpolation: let firstName = 'Bob', lastName = 'Smith'; let msg = `Hello ${firstName} ${lastName}!`; // 'Hello Bob Smith!' You can also tag template literals by
ESLint 0.17.0 released - ESLint - Pluggable JavaScript Linter
Highlights This is a summary of the major changes you need to know about for this version of ESLint. Changes to JSX/React handling In this release, we made the decision to stop supporting React semantics of JSX. We had previously been checking JSX for identifiers in our rules and realized we could only do that correctly by building-in knowledge of how React works. Such knowledge already hurt us wh
The destructuring algorithm in ECMAScript 6
This blog post is outdated. Please read Sect. “The destructuring algorithm” in “Exploring ES6”. This blog post looks at destructuring from a different angle: as a recursive matching algorithm. At the end, I’ll use this new knowledge to explain one especially tricky case of destructuring. Destructuring # This section gives a brief overview of destructuring. For further details, consult the blog po
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GitHub - leebyron/ecmascript-more-export-from: Proposal: add more export-from statements in ES7
GitHub - tc39/proposal-bind-operator: This-Binding Syntax for ECMAScript
GitHub - lebab/lebab: Turn your ES5 code into readable ES6. Lebab does the opposite of what Babel does.
GitHub - chrisdickinson/digraph-tag: ES6 string template tag for quickly generating directed graph data
http://es6-features.org/
GitHub - dnbard/es6-guide: Comparison between ECMA5 and ECMA6 features
GitHub - azu/material-flux: No magic flux implementation library.
