ECMAScript 5 strict mode in Firefox 4 – Mozilla Hacks - the Web developer blog
Editor’s note: This article is posted by Chris Heilmann but authored by Jeff Walden – credit where credit is due. Developers in the Mozilla community have made major improvements to the JavaScript engine in Firefox 4. We have devoted much effort to improving performance, but we’ve also worked on new features. We have particularly focused on ECMAScript 5, the latest update to the standard underlyin
Object.freeze() 㨠ECMAScript Harmony - ã¦ã£ã煮ブãƒã‚°
ES4 ã®ãƒ‰ãƒ©ãƒ•ãƒˆãŒä¸€æ—¦ç™½ç´™ã«ãªã£ã¦ã€ES3.1 ã®ç–定を先ã«é€²ã‚ã‚‹ã“ã¨ã«ãªã£ãŸã€‚ã“ã®ã‚ãŸã‚Šã®æƒ…å ±ãŒå°‘ãªãã¦ã€ã©ã†ãªã£ã¦ã„ãã®ã‹ãŒã„ã¾ã„ã¡ãƒ”ンã¨æ¥ãªã„ã®ã§èª¿ã¹ã¦ã¿ãŸã€‚ç¾çŠ¶ã§é ¼ã‚Šã«ãªã‚‹ã®ãŒã€ "ECMAScript Harmony" ã®æ—¥æœ¬èªžè¨³ã€‚ã“ã®ä¸ã®æ¬¡ã®éƒ¨åˆ†ãŒæ°—ã«ãªã£ãŸã€‚åå‰ç©ºé–“ã¨ã‚¢ãƒ¼ãƒªãƒ¼ãƒã‚¤ãƒ³ãƒ‡ã‚£ãƒ³ã‚°ãŒä»•æ§˜ã‹ã‚‰å¤–ã‚Œã¦ã—ã¾ãˆã°, クラス㯠lambda-coding + Object.freeze 㨠ES3.1 ã®ãã®é–¢ä¿‚機能ã¨ã„ã†ã™ã£ãã‚Šã—ãŸ(desugar)姿ã«ãªã‚Šã¾ã™Object.freeze ã¨ã„ã†ã‚ーワードãŒã‚ˆã分ã‹ã‚‰ãªã‹ã£ãŸã®ã§ã€ES3.1 ã®ãƒ‰ãƒ©ãƒ•ãƒˆ (2008/8/11) を見ãªãŒã‚‰ç†è§£ã‚’進ã‚ã¦ã¿ãŸã€‚ES4 ã‹ã‚‰å¤–れるã“ã¨ã«ãªã£ãŸæ©Ÿèƒ½ã¨ã€ãã®å‰ã«ã€å¤–ã‚ŒãŸæ©Ÿèƒ½ã«ã¤ã„ã¦ç°¡å˜ã«ãŠã•ã‚‰ã„ã—ã¦ãŠã。パッケージクラスや関数ã®åå‰ç©ºé–“ã¨è¨€ã£ã¦ã‚‚ã„ã„ã®ãŒãƒ‘ッケージ。ライブラリã”ã¨ã«åˆ†ã‹
ECMAScriptHarmony - ECMAScript Harmony
ECMAScriptHarmony - ECMAScript Harmony 目次 ã“ã®æ–‡æ›¸ã«ã¤ã„㦠ECMAScript Harmony è¦æ—¨ 詳細ãªå£°æ˜Ž ECMAScript Harmony ã“ã®æ–‡æ›¸ã«ã¤ã„㦠"ECMAScript Harmony" ã®æ—¥æœ¬èªžè¨³ã§ã™ https://mail.mozilla.org/pipermail/es4-discuss/2008-August/003400.html 推敲æ“è¿Ž: 誤訳, タイãƒ, 訳語ã®ä¸çµ±ä¸€, ãã®ã»ã‹... s/渡ã—/ç§/ ã—ã¾ã—ãŸã€‚ s/geter/getter/ ã—ã¾ã—ãŸã€‚ JavaScript ã®æ¨™æº–化を主導ã™ã‚‹ Ecma 㮠第 39 技術委員会 (TC39) ã§, ã“ã®ä¸€å¹´é–“ä¸ å’ŒãŒç¶šã„ã¦ã„ã‚‹ã®ã¯å…¬çŸ¥ã®äº‹å®Ÿã§ã™. 一部ã®ãƒ¡ãƒ³ãƒãƒ¼ã¯ECMA-262 ã®ç¬¬å››ç‰ˆã§ã‚ã‚‹ ES4 を推ã—ã¦ã„ã¾ã™. ã¾ãŸåˆ¥ã®ãƒ¡ãƒ³ãƒãƒ¼ã¯æ—¢å˜ã®
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