Decorators進æ—
Decoratorsé€²æ— TypeScript / ECMAScript 7 自己紹介 azu @azu_re Web scratch, JSer.info TypeScripté€²æ— Decorators · Issue #2249 · Microsoft/TypeScript 仕様 Issue 仕様 : jonathandturner/brainstorming Minimal implementation of Decorators by rbuckton · Pull Request #2399 · Microsoft/TypeScript Origin: Value decorators by rbuckton · Pull Request #2386 · Microsoft/TypeScript ECMAScript 7(next?) wycats/javascript-deco
ecmascript-paper
ECMAScriptã®ã‚«ãƒ³ãƒš ECMAScript関係ã«ã¤ã„ã¦ã–ã£ã¨ã¿ã‚‹ã‚«ãƒ³ãƒ‹ãƒ³ã‚°ãƒšãƒ¼ãƒ‘ー。 2015å¹´10月18æ—¥ã®æ¬¡ä¸–代 Web カンファレンスã§standardizationã®ã‚»ãƒƒã‚·ãƒ§ãƒ³ã§è°è«–ã«å‚åŠ ã™ã‚‹ã‚‰ã—ã„ã®ã§ãã‚Œã®ã‚«ãƒ³ãƒšã§ã™ã€‚ ã“ã“ã«æ›¸ã‹ã‚Œã¦ã„ã‚‹æƒ…å ±ã¯2015å¹´10月17æ—¥ç¾åœ¨ã®ã‚‚ã®ã§ã™ã€‚ 追記: 縦ã«é•·ã„記事èªã‚€ã®ãŒé¢å€’ãªäººå‘ã‘ã«ã‚¹ãƒ©ã‚¤ãƒ‰å½¢å¼ã«ã—ãŸã‚‚ã®ã‚‚ç½®ã„ã¦ãŠãã¾ã™ã€‚ Introduction | ECMAScriptã¨ã¯ä½•ã‹ï¼Ÿ ECMAScriptã¨ã¯? Ecma Internationalã«ã‚ˆã£ã¦æ¨™æº–化ã•ã‚Œã¦ã‚‹JavaScriptã®ä»•æ§˜ã®äº‹ã€‚ 仕様: ECMAScript 実装: JavaScript 2015å¹´10月18æ—¥ã®Stableãªæœ€æ–°ç‰ˆã¯ECMAScript 2015(aka. ES6)。 ECMAScript® 2015 Language Specificat
ES6+カジュアルトークã§ES7ã«ã¤ã„ã¦ç™ºè¡¨ã—ã¦ããŸ
ES6+カジュアルトーク - connpass ES6+カジュアルトーク ã«å‚åŠ ã¨ç™ºè¡¨ã—ã¦ãã¾ã—ãŸã€‚ 自分ã¯æ˜Žæ—¥ã«ã¯ä½¿ãˆãªããªã‚‹ES7トークã¨ã„ã†ES7ã®è©±ã‚’ã—ã¦ãã¾ã—ãŸã€‚ 「runstant 始ã‚ã‚‹EcmaScript6 入門〠by @phi_jp EcmaScript 6 ã®ã‚µãƒ³ãƒ—ル集 | runstant runstant jsfiddleçš„ãªãƒ„ール ãƒãƒ³ã‚ºã‚ªãƒ³ let 2進数を直接書ã‘ã‚‹ Lexical grammar - JavaScript | MDN デフォルトパラメータ 引数ã«ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆå€¤ã‚’è¨å®šå‡ºæ¥ã‚‹ 分割代入 template strings ãƒãƒƒã‚¯ã‚¯ã‚ªãƒ¼ãƒˆã§ãƒ’アドã‚ュメントを書ã‘ã‚‹ class syntax 「Node.js v0.12ã§ä½¿ãˆã‚‹ã‚ˆã†ã«ãªã‚‹ES6+αã®æ©Ÿèƒ½ã€ by @yosuke_furukawa Node.js v0.12ã§ä½¿ãˆã‚‹ã‚ˆã†ã«ãªã‚‹ES6+ã®æ©Ÿ
String.prototype.normalizeãŒå®Ÿè£…ã•ã‚ŒãŸ - JS.next
実装ã•ã‚ŒãŸãƒ¡ã‚½ãƒƒãƒ‰ String.prototype.normalize(form = "NFC") form（åˆæœŸå€¤ï¼š"NFC"）ã®å½¢å¼ã§æ£è¦åŒ–ã—ãŸæ–‡å—列を返㙠詳細 複雑ãªæ–‡å—ã¯ã€ä¸€æ–‡å—ã«è¦‹ãˆã¦ã‚‚ã€æ–‡å—コード上ã¯è¤‡æ•°ã®æ§‹æˆæ–‡å—ã‹ã‚‰æˆã‚Šç«‹ã£ã¦ã„ã‚‹å ´åˆãŒã‚る。 例ãˆã°ã€ã€ŽãŒã€(æ¿ç‚¹ä»˜ã平仮åã‹)ã¨ã€ã€Žã‹ã€(平仮åã‹) ＋『゛[U+3099]ã€(åˆæˆç”¨æ¿ç‚¹)ã¯ã€ åŒã˜æ„味をæŒã¡åŒã˜ã‚ˆã†ã«è¦‹ãˆã‚‹ãŒã€æ–‡å—コードãŒç•°ãªã‚‹ãŸã‚ãã®ã¾ã¾ã§ã¯ãƒ—ãƒã‚°ãƒ©ãƒ 上ã§ã¯ç•°ãªã‚‹æ–‡å—列ã¨ã—ã¦æ‰±ã‚ã‚Œã¦ã—ã¾ã†ã€‚ ga_NFC = 'ãŒ' // 'ãŒ' ga_NFD = 'ã‹\u3099' // 'ã‹ã‚™' escape(ga_NFC) // '%u304C' escape(ga_NFD) // '%u304B%u3099' ga_NFC.length // 1 ga_NFD.length // 2 ga_NFC == ga_
より安全ãªJavaScriptを書ããŸã‚ã«ã€ã‚ã£ãŸã‚‰ã„ã„よãã¨ã„ã†æ©Ÿèƒ½ - mizchi's blog
ã“ã‚“ãªè¨˜äº‹ãŒã‚ã£ãŸã€‚ My ECMAScript 7 wishlist | NCZOnline 大雑把ã«ã„ã†ã¨ã€åˆ¶é™ã•ã‚ŒãŸgetterãŒã»ã—ã„ã¨ã„ã†æ„見ã«è¨˜äº‹ã®ã»ã¨ã‚“ã©ãŒå‰²ã‹ã‚Œã¦ã‚‹ã€‚ JavaScriptã®ãƒ‡ãƒãƒƒã‚°ä¸ã€ä¸€ç•ªã¤ã‚‰ã„ã‚‚ã®ã®ä¸€ã¤ã«ã€æœªå®šç¾©å€¤ã«ã‚¢ã‚¯ã‚»ã‚¹ã—ãŸã¨ãã«undefinedãŒä»£å…¥ã•ã‚Œã¦ãŠã‚Šã€ãã®çµæžœãŒæ¬¡ã®ã‚¢ã‚¯ã‚»ã‚¹ã«ãªã‚‰ãªã„ã¨ã‚ã‹ã‚‰ãªã„ã¨ã„ã†ç‚¹ã ã¨æ€ã†ã€‚ o = { a: () => 1, b: () => 2, c: () => 3, d: () => 4 } f = o.e // ã“ã“ã§ã‚¨ãƒ©ãƒ¼ã«ãªã‚‰ãªã„ // 30è¡Œãらã„ã®ã‚³ãƒ¼ãƒ‰ãŒã‚ã£ã¦å¿˜ã‚Œã‚‹ã¨ã™ã‚‹ f() // エラー ã“ã‚ŒãŒè¾›ã„。ã“れを回é¿ã™ã‚‹ãŸã‚ã«ã©ã‚“ãªä»•æ§˜ãŒå¿…è¦ã‹ã€‚ ã¨ã„ã†ã‚ã‘ã§ã€è‡ªåˆ†ãŒã»ã—ã„ã‚‚ã®ã¯ãªã‚“ã ã‚ã†ã¨è€ƒãˆã¦ã¿ãŸã€‚(注æ„：ã“ã®è¨˜äº‹ã¯ä¸Šã®è¨˜äº‹ã®ç¿»è¨³è¨˜äº‹ã§ã¯ãªã„) 僕自身ãŒã‚ã‚“ã¾ã‚ŠES harmonyã®è°è«–追ã£
Speaking JavaScript
Speaking JavaScript Homepage Buy the book (Ad, please don’t block.) Table of contents Praise for Speaking JavaScriptPrefaceWhat You Need to Know About This BookTips for Reading This BookThe Four Parts of This BookJavaScript Command LinesNotational ConventionsDescribing syntaxReferring to methodsCommand-line interactionTips, notes, and warningsQuickly Finding DocumentationSafari® Books OnlineHow to
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Chromeã®Experimental WebKit/JavaScript Features - fragmentary
追記（2018å¹´4月16日）：ç¾åœ¨ã¯WebKitã§ã¯ãªãBlinkã«ãªã£ãŸãŸã‚“Experimental Web Platform featuresâ€ã¨ã„ã†ã‚»ã‚¯ã‚·ãƒ§ãƒ³ã«ãªã£ã¦ã„る。ã•ã‚‰ã«ã¯ã‚‚ã£ã¨ç°¡å˜ã«ã€runtime_enabled_features.json5ã¨ã„ã†ãƒ•ã‚¡ã‚¤ãƒ«ã‚’見れã°ã©ã‚“ãªæ©Ÿèƒ½ãŒã‚ã‚‹ã®ã‹ãŒã‚ã‹ã‚‹ã‚ˆã†ã«ãªã£ã¦ã„る。 chrome://flagsã«ã¯ã„ã‚ã‚“ãªãƒ©ãƒ³ã‚¿ã‚¤ãƒ フラグãŒã‚る。CSS ShadersやらVP9 playbackやらã€å®Ÿé¨“ä¸ã®æ©Ÿèƒ½ã‚’有効ã«ã§ãるよã†ã«ãªã£ã¦ã„る（動ãã‹ã©ã†ã‹ã¯ã—らãªã„）。 ãã®ä¸ã«ã“ã‚“ãªãƒ•ãƒ©ã‚°ãŒã‚る。 Enable experimental WebKit features. Enable experimental WebKit features that are in development. Enable Experimental JavaS
constructor プãƒãƒ‘ティã«ã¤ã„㦠- hogehoge @teramako
説明をã¤ã‘ã¦ãŠãã¨ã€constructor プãƒãƒ‘ティã¯ã€ã‚ªãƒ–ジェクト作æˆæ™‚ã«è‡ªå‹•çš„ã«ç”Ÿæˆã•ã‚Œã‚‹ãƒ—ãƒãƒ‘ティã§ã€ãã®ã‚ªãƒ–ジェクトãŒç”Ÿæˆã•ã‚ŒãŸã¨ãã«ä½¿ã‚ã‚ŒãŸã‚³ãƒ³ã‚¹ãƒˆãƒ©ã‚¯ã‚¿ãŒå‚ç…§ã•ã‚Œã¦ã„ã¾ã™ã€‚ ミックスインパターン new this.constructor() ã®åˆ©ç”¨ - ã‚ã‹ã‚‰ã‚“ ãŸã¾ãŸã¾è¦‹ã¤ã‘ãŸã®ã§å¼•ç”¨ã™ã‚‹ã‘ã©ã€ä½•å‡¦ã‹åˆ¥ã®ã¨ã“ã‚ã§ã‚‚ä¼¼ãŸã‚ˆã†ãªå‹˜é•ã„ãŒæ›¸ã‹ã‚Œã¦ã„ãŸã‚ˆã†ã«æ€ã†ã€‚ã‚‚ã—ã‹ã™ã‚‹ã¨ã€ã“ã®ã‚ˆã†ã«å‹˜é•ã„ã—ã¦ã„る人ã¯å¤šã„ã®ã‹ã‚‚ã—ã‚Œãªã„。 æ£ã—ã¦ãŠããŸã„ã¨æ€ã†æ¬¡ç¬¬ã€‚ é–“é•ã£ã¦ã„ã‚‹ã®ã¯constructor プãƒãƒ‘ティã¯ã€ã‚ªãƒ–ジェクト作æˆæ™‚ã«è‡ªå‹•çš„ã«ç”Ÿæˆã•ã‚Œã‚‹ãƒ—ãƒãƒ‘ティã¨ã„ã†éƒ¨åˆ†ã€‚ constructor プãƒãƒ‘ティãŒç”Ÿæˆã•ã‚Œã‚‹ã®ã¯ã€Function オブジェクトãŒç”Ÿæˆã•ã‚ŒãŸã¨ãã§ã™ã€‚ 以下ã¯ã€Function オブジェクトãŒä½œã‚‰ã‚Œã‚‹æ™‚ã®å‡¦ç†ã®æµã‚Œã®ä¸€éƒ¨ã§ã™ã€‚ Let proto be the r
Const ãªã‚“ã¨ã‹ã•ã‚“関連ã®ãƒ„ール群をã¤ã‹ã†ã¨ã€ç°¡å˜ã« EcmaScript target ã®è¨€èªžã‚’ã¤ãれる! - tokuhirom's blog
ã§ã€esprima ã¨ã‹é–¢é€£ã®ãƒ„ール群㯠Mozilla ã® Parser API ã® AST å½¢å¼ã‚’サãƒãƒ¼ãƒˆã—ã¦ã„ã¾ã™ã€‚詳細ã¯ã“ã“ã®ã¸ã‚“ã‹ãªã€‚ https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API ã§ã€escodegen ãŒã‚ã‚‹ã¨ã„ã†ã“ã¨ã¯ Parser API å½¢å¼ã® AST ã‚’ã¯ã‘ã°ã€ãã“ã‹ã‚‰ JS を生æˆã§ãã‚‹ã£ã¦ã“ã¨ã§ã™ã。ã—ã‹ã‚‚ escodegen 㯠source-map ã®ç”Ÿæˆã«ã‚‚対応ã—ã¦ã„ã‚‹ã®ã§ã€ã‚¨ãƒ©ãƒ¼ã®å‡¦ç†ã‚‚らãã¡ã‚“ã§ã€å®Ÿè¡Œæ™‚エラーãŒãŠãã¦ã‚‚ã€ã€Œã‚ã‚ã€JSã§ã‹ã„ã¦ãŠã‘ã°ã‚ˆã‹ã£ãŸã€‚。ã€ã¨ã¯ãªã‚‰ãªã„(ã¨ã„ã†æœªæ¥ãŒãã‚‹ã“ã¨ã«ãªã£ã¦ã„ã¾ã™) CoffeeScriptRedux ã¨ã„ã†ã‚«ãƒƒãƒ•ã‚£ãƒ¼ã‚¹ã‚¯ãƒªãƒ—トã®ã‚ãŸã‚‰ã—版をã¤ãã£ã¦ã‚‹ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã§ã¯å®Ÿéš›ã« CoffeeScript code => [parse
ECMAScript Wiki - Frequently Asked Questions
What is One JavaScript? Why don't we remove or fix bad features? Why don't we make breaking changes with a language version? Why don't we deprecate features? How can we use new syntax on old browsers? When will the next version of JavaScript be available? Will we add new restrictions to strict mode? Why don't we standardize a bytecode VM? Classes? Is JavaScript becoming Java? How do we avoid desig
GitHub - michaelficarra/ECMAScript-Glossary: :symbols: A shared vocabulary for people who need to talk about ECMAScript
I am a personal believer in the supreme importance of a shared vocabulary among collaborators on any project in any field. The first step in any project is understanding how to communicate about the problem and communicate details of the problem itself. For the general domain of problems being solved with ECMAScript, it would be nice to have a vocabulary that exists outside of the group with whom
GitHub - AlexNisnevich/ECMAchine: Lisp-based in-browser toy operating system
ECMAchine ECMAchine is an in-browser Scheme REPL that is also a toy operating system. It has a virtual filesystem that is accessed through Unix-like commands, as well as a rudimentary process management system. Why? I made ECMAchine for a few reasons. For one, it's an interesting experiment in what a filesystem based around S-expressions could look like. It was also a good exercise in writing an i
ES.next 追ã£ã‹ã‘ - ECMAScript 勉強会
メーリングリストã®è³¼èª [email protected] ES.next を追ã£ã‹ã‘ã‚‹ãªã‚‰è³¼èªã™ã‚‹ã¹ã— æµé‡å¤šã—。100以上ã®è¿”ä¿¡ãŒä»˜ã事も 僕ã¯èªã‚ã¦ãªã„orz 何ã«å¯¾ã—ã¦è¨€åŠã—ã¦ã„ã‚‹ã‹ä½•ã¨ãªãã¯èªã‚“ã§çµ‚了 Webサイトã¸ã®ãƒªãƒ³ã‚¯ãŒã‚ã‚Œã°ç›®ã‚’通ã—ã¦ã¿ã‚‹ wiki.ecmascript.orgã«æ案を書ã„ã¦ã€ã“ã®MLã§è°è«–を進ã‚ã‚‹å½¢ãŒå¤šã„ 構文抽出 ECMAScript 6th Syntax Grammer ã«ãƒ‰ãƒ©ãƒ•ãƒˆç‰ˆã®æ§‹æ–‡ã‚’ã¾ã¨ã‚ã¦ã¾ã™ ES.next ã§ã¯æ§‹æ–‡ã«å¯¾ã—ã¦å¤šãã®å¤‰æ›´ç‚¹ãŒã‚ã‚‹ ドラフト版ã¯æœ€å¾Œã®æ–¹ã«ã‚ã‚‹Grammer SummaryãŒæ›´æ–°ã•ã‚Œãªã„ 構文をã¾ã¨ã‚ãŸã‚‚ã®ãŒæ¬²ã—ã„ ML ã«ãƒ‰ãƒ©ãƒ•ãƒˆç‰ˆã‚’アップã—ãŸã‚ˆãƒ¼ã‚¢ãƒŠã‚¦ãƒ³ã‚¹ãŒæµã‚Œã‚‹ 変更点ãŒè‰²åˆ†ã‘ã•ã‚ŒãŸPDF版をダウンãƒãƒ¼ãƒ‰ 構文ã®å¤‰æ›´ç‚¹ã«æ³¨ç›®ã—ã¤ã¤HTML㫠利用者ã¯ã€ä¸»ã«Constellationã•ã‚“ã§ã™(onl
ES.next the corner cases
uninitializedãªçŠ¶æ…‹ã‚’æŒãŸãªã„ãŸã‚ BNF見るã ã‘ã§ã¯, initializerãªãã¦ã‚‚è¡Œã‘ãã†ã§ã™ãŒ ES6 draft仕様ã®ç‰¹å¾´ BNFã ã‘ã˜ã‚ƒãªãã¦, semanticsも見ãªã‘ã‚Œã°ã„ã‘ãªã„よã†ã«ãªã£ãŸ section 12.2.1 Static Semantics LexicalBinding : BindingIdentifier It is a Syntax Error if the BindingIdentifier if IsConstantDeclaration of the LexicalDeclaration containing this production is true.
iv / lv5, ECMA262 Engine
仕様æ£ç¢º property enumeration orderã«ã¤ã„ã¦, (仕方ãªã)デファクトスタンダードã«åˆã‚ã›ã¾ã—㟠今度test262ä¸ã«ã¯ã³ã“ã‚‹ä¾æ‹ testã‚’ã¾ã¨ã‚ã¦test262-discussã«æŠ•ã’よã†ã‹ã¨ test262, ç¾åœ¨11582件ä¸, 2 fails 2 failsã¯test262ã®bugã§, ã™ã§ã«reportã•ã‚Œã¦ã„ã¾ã™ https://bugs.ecmascript.org/show_bug.cgi?id=288 lv5ãŒfailã™ã‚‹ lv5ã®ã»ã†ãŒæ£ã—ã„ã¨ããŒã¡ã‚‰ã»ã‚‰ test262ã«bug report (ã¨ã‹, ä¿®æ£ã‚’手ä¼ã£ãŸã‚Šã¨ã‹) https://bugs.ecmascript.org/show_bug.cgi?id=215 https://bugs.ecmascript.org/show_bug.cgi?id=218 https://bugs.e
Annotated ES5 - 15.11.1 The Error Constructor Called as a Function
This is not the normative ECMAScript Language specification. The normative spec (ECMA 262) is a PDF file maintained by ECMA TC39 and is available from http://www.ecmascript.org/. An auto-generated HTML version is available, too: http://ecma-international.org/ecma-262/5.1/ This is an annotated, hyperlinked, HTML version of Edition 5.1 of the ECMAScript Specification, the source for which is maintai
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GitHub - google/traceur-compiler: Traceur is a JavaScript.next-to-JavaScript-of-today compiler
JavaScript.Next
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