Top 10 ES6 features by example
Though ES6 specification is not super-fresh, I think that many developers are still not so familiar with it. The main reason is probably poor support in web browsers just after specification release. Currently, the specification is over 2 years old, and a lot of modern web browsers work well with ES6. Even if you (or your clients) don’t use the most recent version of web browser, you can use trans
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WeakMapæ¦‚è¦ Mapã¨é•ã£ã¦ã€ã‚ーã¨ã—ã¦ä½¿ã‚れるオブジェクトãŒç”Ÿãã¦ã„ã‚‹ã†ã¡ã«ã€WeakMapãŒã‚ーã®å‚照をæŒã¡ã¾ã™ãŒã€WeakMap以外誰ã«ã‚‚使ã‚ã‚Œã¦ã„ãªã‘ã‚Œã°ã€ã‚¬ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚·ãƒ§ãƒ³ã«ã‚ˆã£ã¦ã‚ーオブジェクトã®ãƒ¡ãƒ¢ãƒªã‚’解放ã—ã¦ã—ã¾ã„ã¾ã™ã€‚ã¤ã¾ã‚Šã€ã‚ーã®å‚ç…§ãŒå¼±ã„å‚ç…§ã§ã‚ã‚Šã€è‡ªå‹•çš„ã«å‰Šé™¤ã•ã‚Œã‚‹å¯èƒ½æ€§ãŒã‚ã‚Šã¾ã™ã€‚ 次ã¯ã€åˆ©ç”¨ã‚±ãƒ¼ã‚¹ã§ãªãœWeakMapãŒå¿…è¦ãªã®ã‹ã‚’ç†è§£ã—ã¾ã—ょã†ã€‚ 利用ケース 下記execute関数ãŒè¤‡æ•°å›žã«å‘¼ã°ã‚Œã‚‹ã“ã¨ãŒã‚ã‚Šã€åŒã˜å¼•æ•°objã§å®Ÿè¡Œã•ã‚Œã‚‹å›žæ•°ãŒ10ã®å€æ•°ã«ãªã£ãŸã‚‰ã€ãã®objæƒ…å ±ã‚’ã‚·ã‚¹ãƒ†ãƒ ä¸Šã«é€šçŸ¥ã‚’è¡Œã„ã¾ã™ã€‚ // マップã‚ーãŒæ–‡å—列ã§ã¯ãªãã€ã‚ªãƒ–ジェクトã§ã™ let map = new Map(); function execute(obj){ doSomethingWith(obj); // æ—¢å˜ã®å›žæ•°ã‚’å–å¾— const called = (map.g
ECMAScript 2015 Language Specification – ECMA-262 6th Edition
Standard ECMA-262 6th Edition / June 2015 ECMAScript® 2015 Language Specification This is the HTML rendering of ECMA-262 6th Edition, The ECMAScript 2015 Language Specification. The PDF rendering of this document is located at https://ecma-international.org/wp-content/uploads/ECMA-262_6th_edition_june_2015.pdf. The PDF version is the definitive specification. Any discrepancies between this HTML ve
Exploring ES6
This book is dedicated to the impossible girl, who has taught me so much about love and life.
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GitHub - mbeaudru/modern-js-cheatsheet: Cheatsheet for the JavaScript knowledge you will frequently encounter in modern projects.
https://blog.mismithportfolio.com/web/20170305webpackbeginner2
GitBook
http://es6-features.org/
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