ES5 and use strict
My JavaScript book is out! Don't miss the opportunity to upgrade your beginner or average dev skills. Update There was another article about it which has less examples but more complementary points or descriptions. Moreover, that page links to a specific use strict compatibility page, right now green only with Firefox Aurora and Google Chrome Canary. However, another page shows more use strict cas
use strict 怖ㄠ- hogehoge @teramako
Perlã®è©±ã§ã¯ãªã„ã€JavaScriptã®è©±ãªã®ã§ã‚る。 ã‚ã¨ã€ã‚¿ã‚¤ãƒˆãƒ«ã¯ã¾ã‚“ã˜ã‚…ã†æ€–ã„çš„ãªæ„味ãªã®ã§ã‚ã‚‹ ECMAScript 5 strict mode in Firefox 4 ? Mozilla Hacks ? the Web developer blog Firefox4.0b10pre ã« ECMAScript5 ã® Strict モードãŒå®Ÿè£…ã•ã‚Œã¾ã—ãŸãƒ¼ãƒ‘ãƒãƒ‘ãƒãƒ¼ ã§ã€è‡ªåˆ†ãŒã¯ã¾ã£ãŸç½ ã«ã¤ã„ã¦æ›¸ã„ã¦ãŠãよ。ã¾ã‚上記ページã«æ›¸ã‹ã‚Œã¦ã„ã‚‹ã“ã¨ãªã‚“ã ã‘ã©ã。 "caller", "callee" in arguments オブジェクト 使ã†ã¨ã‚¨ãƒ©ãƒ¼ (function() { "use strict"; return arguments.callee; })(); TypeError: 'caller', 'callee', and 'arguments' properties
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
John Resig - ECMAScript 5 Strict Mode, JSON, and More
Previously I analyzed ECMAScript 5’s Object and Property system. This is a huge new aspect of the language and deserved its special consideration. There are a number of other new features and APIs that need attention, as well. The largest of which are Strict Mode and native JSON support. Strict Mode is a new feature in ECMAScript 5 that allows you to place a program, or a function, in a “strict†o
JavaScript基礎文法最速マスター - gifnksmã®é›‘多ãªãƒ¡ãƒ¢
続々ã¨å¢—ãˆç¶šã‘る基礎文法最速マスターシリーズ(ã‚ã¾ã‚Šã«ã‚‚増ãˆã¦ããŸã®ã§ä»–ã®è¨€èªžè¨˜äº‹ã¸ã®ãƒªãƒ³ã‚¯ã¯åˆ¥ã®è¨˜äº‹ã«ç§»ã—ã¾ã—ãŸ)。 JavaScript 版ã¯èª°ã‚‚書ã„ã¦ã„ãªã‹ã£ãŸã‚ˆã†ãªã®ã§æ›¸ã„ã¦ã¿ã¾ã™ã€‚ã“ã†ã„ã†è§£èª¬è¨˜äº‹çš„ãªã‚‚ã®ã‚’書ãã®ã¯åˆã‚ã¦ãªã®ã§å¤‰ãªã¨ã“ã‚ãŒã‚ã£ãŸã‚‰æŒ‡æ‘˜ã—ã¦é ‚ã‘ã‚‹ã¨ã‚ã‚ŠãŒãŸã„ã§ã™ã€‚ JavaScriptã®åŸºç¤Žæ¦‚念ã«ã¤ã„ã¦ã®è§£èª¬ã¯ã“ã¡ã‚‰ï¼šJavaScript基本概念最速マスター - TechTalkManiacs 1/31 23:58追記 コメント欄ã®os0xã•ã‚“ã®ã”指摘を基ã«ä¸€éƒ¨è¿½è¨˜ãƒ»ä¿®æ£ã‚’è¡Œã„ã¾ã—ãŸã€‚ 2/2 2:52追記 switch文・æ£è¦è¡¨ç¾ãƒ»ä¾‹å¤–処ç†ã«ã¤ã„ã¦è¿½åŠ ã—ã¾ã—ãŸã€‚ 2/2 6:44追記 コメントã§favrilã•ã‚“ã«ã”æŒ‡æ‘˜é ‚ã„ãŸç‚¹(typo & ã‚³ãƒ¡ãƒ³ãƒˆãƒ»ã‚µãƒ³ãƒ—ãƒ«è¿½åŠ )ã‚’ä¿®æ£ãƒ»åŠ ç†ã—ã¾ã—ãŸã€‚ 2/2 7:15追記 トラックãƒãƒƒã‚¯ã§LiosKã•ã‚“ã«ã”æŒ‡æ‘˜é ‚ã„ãŸç‚¹(cal
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