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ã€webpack】(ç¾æ™‚点ã§)ES2015 (ES6)ã®ã¾ã¾minifyã™ã‚‹æ–¹æ³• - Qiita
※ã“ã®è¨˜äº‹ã¯2017å¹´6月ã«æ›¸ã„ãŸè¨˜äº‹ã§ã™ã€‚ ã€webpack】(2018å¹´2月25æ—¥ç¾æ™‚点ã§)ES2015 (ES6)ã®ã¾ã¾minifyã™ã‚‹æ–¹æ³•ã‚’æ–°ã—ã書ã„ãŸã®ã§ã“ã¡ã‚‰ã‚’å‚ç…§ã—ãŸã»ã†ãŒå¹¸ã›ã«ãªã‚Œã‚‹ã¨æ€ã„ã¾ã™ã€‚ ã“ã¡ã‚‰ã®çµè«–ã¯ã€webpackv4.0.0使ãˆã¨ã„ã†ã“ã¨ã«ãªã‚Šã¾ã™ã€‚ 残念ãªãŒã‚‰webpackv4.0.0ã«ã¯å‡ºæ¥ãªã„ã¨ã„ã†æ–¹ã¯ã€ ã€webpack】(2018å¹´1月ç¾æ™‚点ã§)ES2015 (ES6)ã®ã¾ã¾minifyã™ã‚‹æ–¹æ³•ã‚‚書ã„ã¦ã„ã‚‹ã®ã§å‚ç…§ã•ã‚Œã‚‹ã¨å¹¸ã›ã«ãªã‚Œã‚‹ã¨æ€ã„ã¾ã™ã€‚ 以下ã€è¨˜äº‹ã®æ¦‚è¦ã§ã™ã€‚ 今（2018å¹´1月）ã¯uglifyjs-webpack-pluginを個別ã«ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—㦠（webpackã‹ã‚‰uglifyjs-webpack-pluginã¸ã®ä¾å˜ã ã¨ãƒãƒ¼ã‚¸ãƒ§ãƒ³å¤ã„ã®ã§ï¼‰ uglifyOptions: {ecma: 6}ç‰ã®ã‚ªãƒ—ションをã¤ã‘ã‚‹ã®ãŒã‚¹ãƒžãƒ¼ãƒˆãªæ§˜åã§
英語資料をèªã‚€ã®ãŒé¢å€’ãªäººã®ãŸã‚ã®webpack 2移行ガイド - Qiita
2017å¹´1月ã«ã€ã‚ˆã†ã‚„ãwebpack 2ã®ãƒªãƒªãƒ¼ã‚¹ã‹ã‚‰beta/rcãŒå¤–ã‚Œã€æ£å¼ã«ãƒªãƒªãƒ¼ã‚¹ã¨ãªã‚Šã¾ã—ãŸã€‚ ã“ã‚Œã«ã‚ˆã£ã¦npm installã§ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã«å…¥ã‚‹ãƒãƒ¼ã‚¸ãƒ§ãƒ³ãŒ2ç³»ã¨ãªã‚Šã€èª°ã§ã‚‚気軽ã«å¼·åŠ›ãªè¿½åŠ 機能ã®ãƒ¡ãƒªãƒƒãƒˆã‚’享å—ã§ãるよã†ã«ãªã£ãŸä¸€æ–¹ã€ãƒ¡ã‚¸ãƒ£ãƒ¼ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã‚¢ãƒƒãƒ—ã«ã‚ˆã‚‹ç ´å£Šçš„変更ãŒåŠ ãˆã‚‰ã‚ŒãŸã“ã¨ã«ã‚ˆã£ã¦ã€å¾“æ¥ã®webpack.config.jsã¯å‹•ä½œã—ãªã„å½¢ã¨ãªã‚Šã¾ã—ãŸã€‚ 今回ã¯ã¾ã ã¾ã 日本語ã®ç§»è¡Œè³‡æ–™ãŒå°‘ãªã„webpack 2ã«ã¤ã„ã¦ã€æ–°ã—ã„機能ã¨ã€1.xã‹ã‚‰ã®ç§»è¡Œã®æ–¹æ³•ã‚’ç°¡å˜ã«ã”紹介ã„ãŸã—ã¾ã™ã€‚ webpack 2ã®æ©Ÿèƒ½ webpackã‚‚2ç³»ã«ãªã£ã¦ã„ãã¤ã‹ã®æ©Ÿèƒ½ãŒè¿½åŠ ã•ã‚Œã¾ã—ãŸã€‚å°ã•ãªã‚‚ã®ã‹ã‚‰ã€æ¯”較的大ããªã‚‚ã®ã¾ã§æ§˜ã€…ã§ã™ãŒã€ä»Šå›žã¯å½±éŸ¿ã®å¤§ããã†ãªã‚‚ã®ã‚’ã„ãã¤ã‹ã”紹介ã„ãŸã—ã¾ã™ã€‚ import/exportã®æ¨™æº–対応 webpack 2ã§ã¯ã€import/export構文
Transpile Async Await proposal with Babel.js?
Babel v6 As of Babel v6, Babel doesn't contain any transformers itself anymore. You have to explicitly specify any feature you want to transform. Presets - non ES2015 environment The quickest way to get this working is to use presets which already contain the set of plugins needed to transform ES2015 and newer proposals. For async, you will need the es2015 and es2017 presets and the runtime plugin
テンプレートリテラル (テンプレート文å—列) - JavaScript | MDN
This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020. Learn moreSee full compatibilityReport feedback テンプレートリテラルã¯é€†å¼•ç”¨ç¬¦ (`) ã§åŒºåˆ‡ã‚‰ã‚ŒãŸãƒªãƒ†ãƒ©ãƒ«ã§ã€è¤‡æ•°è¡Œã®æ–‡å—列ã€åŸ‹ã‚è¾¼ã¿å¼ã«ã‚ˆã‚‹æ–‡å—列ã®è£œé–“ã€ã‚¿ã‚°ä»˜ãテンプレートã¨å‘¼ã°ã‚Œã‚‹ç‰¹æ®Šãªæ§‹æ–‡ã‚’許å¯ã—ã¾ã™ã€‚ テンプレートリテラルã¯éžå…¬å¼ã«ã€Œãƒ†ãƒ³ãƒ—レート文å—列ã€ã¨å‘¼ã°ã‚Œã‚‹ã“ã¨ã‚‚ã‚ã‚Šã¾ã™ã€‚æ–‡å—列ã®è£œé–“ã®ãŸã‚ã«ã‚‚ã£ã¨ã‚‚よã使用ã•ã‚Œã‚‹ã‹ã‚‰ã§ã™ã€‚ã—ã‹ã—ã€ã‚¿ã‚°ä»˜ã‘ã•ã‚ŒãŸãƒ†ãƒ³ãƒ—レートリテラルãŒæ–‡å—列ã«ãªã‚‹ã¨ã¯é™ã‚Šã¾ã›ã‚“。カスタムã®ã‚¿ã‚°é–¢æ•°ã¨ä½µç”¨ã™ã‚‹ã“ã¨ã§ã€ãƒ†ãƒ³ãƒ—レートリテラ
DeNA Engineering - DeNAエンジニアã®ãƒãƒ¼ã‚¿ãƒ«ã‚µã‚¤ãƒˆ
技術を活ã‹ã—ã€æ–°ã—ã„ä¾¡å€¤ã‚’å‰µé€ ã™ã‚‹ DeNAã®ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã¯ã€æƒ³åƒã‚’超ãˆã‚‹Delightを届ã‘ã‚‹ãŸã‚ã«ä½•ãŒã§ãã‚‹ã‹ã‚’考ãˆã€æŠ€è¡“力ã¨ç™ºæƒ³åŠ›ã§æ–°ã—ã„価値を生ã¿å‡ºã—ã¦ã„ã¾ã™ã€‚ 多様ãªå°‚門性をæŒã£ãŸã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ãŒåˆ‡ç£‹ç¢ç£¨ã—ã€äº’ã„ã«åˆºæ¿€ã—åˆãˆã‚‹ç’°å¢ƒã‚„制度ãŒã•ã‚‰ãªã‚‹æˆé•·ã¸ã¨ã¤ãªã’ã¾ã™ã€‚
Promiseã¨async-awaitã®ä¾‹å¤–処ç†ã‚’完全ã«ç†è§£ã—よㆠ- Qiita
ã¯ã˜ã‚ã« JavaScriptã¯éžåŒæœŸå‡¦ç†ã¨ã®é—˜ã„ã§ã™ã€‚ 人類ãŒéžåŒæœŸå‡¦ç†ã‚’倒ã™ãŸã‚ã«ã€Promiseã‚„async-awaitã¨ã„ã†æœ€çµ‚兵器を生ã¿å‡ºã—ã¦ã€åŠ‡çš„ã«ã‚¯ãƒªãƒ¼ãƒ³ã§å¹³å’Œãªä¸–ç•ŒãŒç”Ÿã¾ã‚ŒãŸã¨ã„ã†è©±ã¯ä»¥å‰ã—ã¾ã—㟠=> (ã‚‚ã—ã‹ã—ã¦ï¼š JavaScriptã¯å¦‚何ã«ã—ã¦Async/Awaitã‚’ç²å¾—ã—ãŸã®ã‹ Qiita版) ã—ã‹ã‚ãã—ï¼ï¼ï¼ 甘ã„ã€ç”˜ã„ã®ã§ã™ã‚ˆï¼ï¼ï¼ï¼ï¼ 人類を苦ã—ã‚続ã‘ã‚‹éžåŒæœŸå‡¦ç†ãŒã€ãã‚“ãªç°¡å˜ã«å®Œå…¨ã«å€’ã›ã‚‹ã‚ã‘ãŒãªã„ã®ã§ã™ã‚ˆã€‚ éžåŒæœŸå‡¦ç†ã®æœ¬å½“ã«ãƒ¤ãƒã‚¤æ·±æ·µã€ãã‚ŒãŒã€Œä¾‹å¤–処ç†ã€ã§ã™ã€‚ ã¿ãªã•ã‚“ã¯Promiseã§é–‹ç™ºã—ã¦ã„ã¦ã€ 「ãªã‚“ã‹é€”ä¸ã¾ã§ã†ã¾ãè¡Œã£ã¦ãŸã‚“ã ã‘ã©æ°—ã¥ã„ãŸã‚‰ä¾‹å¤–ãŒå¤–å´ã«é£›ã°ãªããªã£ãŸâ€¦ãªã‚“ã§ã …〠「助ã‘ã¦ï¼Promiseã«catch書ã„ã¦ã‚‹ã®ã«ä½•æ•…ã‹ä¾‹å¤–ãŒcatch出æ¥ãªã„ã®ï¼ï¼ï¼ã€ ã¨ã„ã†çµŒé¨“ã¯ãªã„ã§ã—ょã†ã‹ã€‚ç§ã¯ä½•åº¦ã‚‚ã‚ã‚Šã¾ã™ã€‚ ã“ã®è¨˜äº‹ã§ã¯ã€å…·ä½“çš„ã«ä½•
ES6 Import Statement Without Relative Paths
Use Imports Like a ProThe ES2015 module system is probably familiar to you by now. If you’ve used it, you might have faced the familiar relative path inclusion problem. Using relative paths for imports makes your code base very hard to maintain, not to mention the hassle required to figure out where the inclusion is relative to the current path. If your code resembles the example below, today migh
ECMAScript 6 compatibility table
V8 SpiderMonkey JavaScriptCore Chakra Carakan KJS Other ⬤ Minor difference (1 point) ⬤ Small feature (2 points) ⬤ Medium feature (4 points) ⬤ Large feature (8 points) Compilers/polyfills Desktop browsers Servers/runtimes Mobile Feature name Current browser ES6 Trans- piler Traceur Babel 6 + core-js 2 Babel 7 + core-js 2 Babel 7 + core-js 3 Closure 2020.06 Closure 2020.09 Closure 2021.08 Closure 20
Webpack2 㨠最å°é™ã® babel transform 㧠Chrome ã§å‹•ãJSã‚’ - Qiita
å…ˆã«è¨€ã£ã¦ãŠãã¨ã€IE11ã¯æ»ã¬ã€‚ 何ãŒã—ãŸã„ã‹ å‰æã¨ã—ã¦ã€ç¾ä»£ã§ã¯ ES Modules を除ã‘ã°ã»ã¨ã‚“ã©ã®ãƒ¢ãƒ€ãƒ³ãƒ–ラウザ(IE11を除ã)ã§ES2015ã¯å®Ÿè£…ãŒçµ‚ã‚ã‚Šã¤ã¤ã‚ã‚Šã€IE11ã®ã‚ˆã†ãªç‰¹å®šã®ç’°å¢ƒã‚’除ã‘ã°ã»ã‚“ã®ã™ã“ã—ã®å¤‰æ›ã§ES201xã®ã‚³ãƒ¼ãƒ‰ãŒå‹•ã。ã†ã¾ãã‚„ã‚Œã°ã€ã‚³ãƒ³ãƒ‘イル時間もbabelã®èµ·å‹•æ™‚é–“ã‚‚çŸç¸®ã§ãる。何度も言ã†ãŒIE11ã¯æ»ã¬ã€‚ ãã‚Œã¨ã€å…ˆé€±ãƒªãƒªãƒ¼ã‚¹ã•ã‚ŒãŸChrome55ã§async/awaitãŒãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã§æœ‰åŠ¹ã«ãªã£ãŸã€‚ã“ã‚Œã§ä½•ãŒã§ãã‚‹ã‹ã¨ã„ã†ã¨ã€babel ã§ã€€async/await をコンパイルã™ã‚‹ã¨ã€CPS変æ›ã§å·¨å¤§ãªã‚¹ã‚¤ãƒƒãƒæ–‡ã«å¤‰æ›ã—ã¦ã¨ã«ã‹ãコードãŒèªã¿ã¥ã‚‰ã„ã¨ã„ã†å•é¡ŒãŒã‚ã£ã¦ã€ãれをãƒã‚¤ãƒ†ã‚£ãƒ–ã®æ©Ÿèƒ½ã‚’使ã†ã“ã¨ã§è§£æ±ºã§ãる。(ソースマップもよãã‚ã‹ã‚‰ã‚“ã¨ã“ã‚ã«å¹ã£é£›ã‚“ã§ä½¿ãˆãªã‹ã£ãŸ) ã“ã®ã‚¢ãƒ—ãƒãƒ¼ãƒã‚’試ã¿ãŸéš›ã®å•é¡Œ browserify/webpack
ES2015 㮠Class 㧠Singleton - Qiita
状態をæŒã¤ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã‚’ã€ç•°ãªã‚‹ãƒ•ã‚¡ã‚¤ãƒ«ã‚„クラスã§ä½¿ã„ã¾ã‚ã™ã‚±ãƒ¼ã‚¹ã§ã™ã€‚例ã¨ã—ã¦ã‚ーã¨å€¤ã‚’ä¿æŒã™ã‚‹ã‚³ãƒ³ãƒ†ãƒŠçš„ãªã‚‚ã®ã‚’シングルトンã§é‹ç”¨ã™ã‚‹å ´åˆã¯ã€æ¬¡ã®ã‚ˆã†ã« new ã§ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹åŒ–ã—ãŸã‚‚ã®ã‚’ export ã™ã‚‹ã ã‘ã§ã™ã€‚ class Container { constructor() { this.map = new Map; } set(key, value) { this.map.set(key, value); } get(key) { return this.map.get(key); } } export default new Container();
ESLint v3.6.0 - Qiita
å‰ v3.5.0 | 次 v3.7.0 ESLint v3.6.0 released: https://t.co/fwTadlTxuN — ESLint (@geteslint) 2016å¹´9月23æ—¥ ESLint 3.6.0 ãŒãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã¾ã—ãŸã€‚ 今回ã®ãƒªãƒªãƒ¼ã‚¹ã§ ECMAScript® 2017 Draft ã®ä¸€éƒ¨ã‚’サãƒãƒ¼ãƒˆã—ã¾ã—ãŸ! ã“ã‚Œã«ã‚ˆã‚Šã€babel-eslintを利用ã—ãªãã¦ã‚‚ async/await や関数関連ã®æœ«å°¾ã‚«ãƒ³ãƒžã‚’利用ã§ãるよã†ã«ãªã‚Šã¾ã™ã€‚ ã“れらã®æ–°ã—ã„言語機能を利用ã™ã‚‹å ´åˆã¯ã€ ã¨è¨å®šã—ã¾ã™ã€‚ 今後も Stage 4 (finished) ã«åˆ°é”ã—ãŸè¨€èªžæ©Ÿèƒ½ã‹ã‚‰é †ã«ã‚µãƒãƒ¼ãƒˆã—ã¦ã„ãã¾ã™ã€‚ 質å•ã‚„ãƒã‚°å ±å‘Šç‰ã‚ã‚Šã¾ã—ãŸã‚‰ã€ãŠæ°—軽ã«ã“ã¡ã‚‰ã¾ã§ãŠå¯„ã›ãã ã•ã„。 日本語 Issue 管ç†ãƒªãƒã‚¸ãƒˆãƒª 日本語サãƒãƒ¼ãƒˆ ãƒãƒ£ãƒƒãƒˆ 本家リãƒã‚¸ãƒˆãƒª 本家サãƒãƒ¼ãƒˆ ãƒãƒ£ãƒƒãƒˆ ES
Object-oriented JavaScript: A Deep Dive into ES6 Classes — SitePoint
April 16, 2018Object-oriented JavaScript: A Deep Dive into ES6 Classes Often we need to represent an idea or concept in our programs — maybe a car engine, a computer file, a router, or a temperature reading. Representing these concepts directly in code comes in two parts: data to represent the state, and functions to represent the behavior. ES6 classes give us a convenient syntax for defining the
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Compile asyn/await to es5 with babel js
GitHub - amilajack/eslint-plugin-compat: Check the browser compatibility of your code
GitHub - felipeochoa/rjsx-mode: A JSX major mode for Emacs
今日ã‹ã‚‰ä½¿ã† ES6 & async/await (Nodeç·¨) - Qiita
手ã£å–ã‚Šæ—©ãES6ãªReduxã®ã‚³ãƒ¼ãƒ‰ã‚’テストã™ã‚‹(mocha) - Qiita
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