Let's WeakMap - 枕を欹ã¦ã¦è´ã
ES.nextã¨ã—ã¦å…¥ã£ã¦ã„ã¦, ECMAScript 6ã«ã‚‚入りãã†ãªæ°—é…ãŒã™ã‚‹WeakMap. ã¨ã„ã†è¨³ã§. WeakMapã¨ã¯ WeakMapã¨ã¯, harmony:weak_maps [ES Wiki] keyã¸ã®å‚ç…§ãŒå¼±å‚ç…§ keyãŒä»»æ„ã®Object valueã¯ãªã‚“ã§ã‚‚ã‚ã‚Š ã¨ã„ã†ã‚‚ã®ã§ã™. å¼±å‚ç…§ã§ã‚ã‚‹ãŸã‚, WeakMapã®keyã«æŒ‡å®šã•ã‚ŒãŸObjectãŒ, weakãªreferenceã‹ã‚‰ã—ã‹å‚ç…§ã•ã‚Œã¦ã„ãªã‹ã£ãŸå ´åˆ, GCã«å›žåŽã•ã‚Œã¾ã™. ã¾ãŸ, WeakMapã¨ã„ã†åå‰ãŒéš ã—ãŒã¡ã§ã™ãŒ, ã©ã¡ã‚‰ã‹ã¨è¨€ã†ã¨ä¸»æ©Ÿèƒ½ã¯ä»»æ„ã®ObjectãŒkeyã¨ã—ã¦å–れるã¨ã„ã†ã“ã¨ã§ã—ょã†. var map = new WeakMap(); var obj = {}; map[obj] = "OK"; // ã“ã®ã¨ã, toString()ã•ã‚ŒãŸã‚Šã—ãªã„. Objectã‚’ã¨ã‚Œã‚‹ 従æ¥ã®O
CSS4セレクタ (Selectors Level 4) ã®æ–°æ©Ÿèƒ½
2018-08-01更新：ã™ã£ã‹ã‚Šå¤ããªã£ã¦ã—ã¾ã£ãŸã“ã¨ã‚‚ã‚り削除ã—ã¾ã™ã€‚公開ã•ã‚Œã¦ã„ãŸæ–‡ç« ã‚’èªã¿ãŸã„å ´åˆã¯ã€GitHubã®å±¥æ´ã‚’ãŠèªã¿ãã ã•ã„。セレクタ Level 4仕様 ã®æ©Ÿèƒ½ã‚’知りãŸã„å ´åˆã¯ã€ä»•æ§˜æ›¸ã‚‚ã—ãã¯æœ‰å¿—ã«ã‚ˆã‚‹æ—¥æœ¬èªžè¨³ã‚’ã”覧ãã ã•ã„。
jQuery Keynote 2011: Boston
This document summarizes John Resig's keynote about jQuery. It discusses recent updates to jQuery including HTML5 support in older IE browsers, new event handling methods (.on() and .off()), and improvements to animation ordering and submit/focus event handling. It emphasizes the importance of community, documentation, tutorials, an open development process, and encouraging user contributions.Read
ECMAScript ã®ï¼ˆæ§‹æ–‡ä¸Šã®ï¼‰ã”ã基本的ãªæ§‹é€ - oogatta ã®ãƒ–ãƒã‚°
ã¨ã¦ã¤ã‚‚ãªã基本的ãªã“ã¨ã§ã‚ã‚ŠãªãŒã‚‰ã„ã¤ã‚‚忘れã¦ã—ã¾ã†ã®ã§ã“ã“ã«ãƒ¡ãƒ¢ã—ã¦ãŠã。 Program → Statement → Expression ãŒåŸºæœ¬çš„ãªæµã‚Œã€‚ã“れ以外ã®ä»£è¡¨çš„ãªè¦ç´ ã¨ã—ã¦ã¯â€¦ã€‚ Block 㯠Statement ã®ä¸‹ã€‚ã•ã‚‰ã« Statement ã‚’å«ã‚る（複文を作れる）。 Expression ã®ä¸‹ã« AssignmentExpression 〠AssignmentExpression 㯠LeftHandSideExpression AssignmentOperator AssignmentExpression 。 LeftHandSideExpression ㌠NewExpression ã‹ CallExpression 。 NewExpression ã®ä¸‹ã« MemberExpression ãŒã„ã¦ã€ãã®ä¸‹ã«ã‚„ã£ã¨ PrimaryExpression ã‚„ F
CoreDataã«å¤§é‡ã®ãƒ‡ãƒ¼ã‚¿ã‚’è¿½åŠ ã™ã‚‹ | エンジニア開発記
CoreDataã«å¤§é‡ã®ãƒ‡ãƒ¼ã‚¿ã‚’è¿½åŠ ã™ã‚‹ã¨ãã€ãƒ¡ãƒ¢ãƒªã«æ°—ã‚’ã¤ã‘ã¦ã‚ã’ãªã„ã¨ã™ãメモリä¸è¶³ã«ãªã£ã¦ã—ã¾ã„ã¾ã™ã€‚ ã—ã‹ã—ã€CoreDataã®ManagedObjectã¯è§£æ”¾ã—ãŸã„ã¨æ€ã£ãŸã‚¿ã‚¤ãƒŸãƒ³ã‚°ã§ã¯ãªã‹ãªã‹è§£æ”¾ã—ã¦ãã‚Œã¾ã›ã‚“。 メモリ解放ã™ã‚‹ã«ã¯ã¡ã‚‡ã£ã¨ã—ãŸæ‰‹é †ãŒå¿…è¦ã¨ãªã‚Šã¾ã™ã€‚ æ–°ã—ãManagedObjectContextを作る ManagedObjectã‚’ã²ã¨ã¤è¿½åŠ →ä¿å˜ã™ã‚‹ ManagedObjectContextã®resetを呼ã¶ï¼ˆãƒ¡ãƒ¢ãƒªå¼·åˆ¶é–‹æ”¾ï¼‰ 2〜3ã‚’å¿…è¦ãªã ã‘繰り返㙠他ã®ManagedObjectContextã§ä½œã£ãŸManagedObjectã«ä¿å˜çµæžœã‚’マージã™ã‚‹ ã¡ãªã¿ã«ã€å¤§é‡ã®ãƒ‡ãƒ¼ã‚¿ã‚’変更・処ç†ã™ã‚‹æ™‚ãªã©ã‚‚æ‰‹é †ã¯åŒã˜ã§ã™ã€‚ æ–°ã—ãManagedObjectContextを作る ã¾ãšã€æ–°ã—ãManagedObjectContextãŒå¿…è¦ã«ãªã‚Šã¾ã™ã€‚ ãªãœæ–°ã—ã„ã®ãŒå¿…è¦
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node.jsã®ã„ã‚ã„ã‚ãªãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«7 – js-optsã§ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³å¼•æ•°ã‚’使ㆠ| DevelopersIO
optsを使ã£ã¦ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³å¼•æ•°ã‚’使ㆠnode.jsã§ã€ãƒ—ãƒã‚°ãƒ©ãƒ 実行時ã«ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³å¼•æ•°ã‚’渡ã—ã¦å®Ÿè¡Œã—ãŸã„å ´åˆã€ã¿ãªã•ã‚“ã¯ã©ã†ã—ã¦ã„ã¾ã™ã‹ï¼Ÿ process.argv変数をå‚ç…§ã™ã‚Œã°æŒ‡å®šã•ã‚ŒãŸå¼•æ•°ã‚’å–ã‚‹ã“ã¨ãŒã§ãã¾ã™ãŒã€js-optsモジュール ※1を使用ã™ã‚Œã°ã‚‚ã£ã¨ç°¡å˜ã«è¡Œã†ã“ã¨ãŒã§ãã¾ã™ã€‚ 今回ã¯ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³å¼•æ•°ã‚’扱ã†ãŸã‚ã®js-optsã«ã¤ã„ã¦ã”紹介ã—ã¾ã™ã€‚ インストール 今回使用ã—ãŸå‹•ä½œç’°å¢ƒã¯ä»¥ä¸‹ã®ã¨ãŠã‚Šã§ã™ã€‚ OS : MacOS X 10.7.1 Node.js : v0.4.11 npm : 1.0.30 ã§ã¯npmを使用ã—ã¦ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¾ã—ょã†ã€‚ % npm install opts インストールã§ããŸã‚‰npmコマンドã§ç¢ºèªã—ã¾ã™ã€‚ %npm list /path/your/app └── [email protected] extraneous インストールã§ããŸã®ã§ã€ã‚µãƒ³
Mozilla 勉強会㧠ECMAScript 6 ã® WeakMap ã«ã¤ã„㦠LT ã—ã¾ã—㟠- mooz deceives you
2011/10/01 ã«é–‹å‚¬ã•ã‚ŒãŸ Mozilla å‹‰å¼·ä¼šï¼ æ±äº¬ 6th 㧠WeakMap ã«ã¤ã„㦠LT ã‚’è¡Œã‚ã›ã¦é ‚ãã¾ã—ãŸï¼Žç™ºè¡¨è³‡æ–™ï¼Œãƒ¡ã‚¿çš„ãªèª¬æ˜Žï¼Œå‹‰å¼·ä¼šã®æ„Ÿæƒ³ï¼Œãã—㦠Firefox Hacks Rebooted ã®èª¬æ˜Žã‚’記ã—ã¾ã™ï¼Ž 発表資料 説明 ECMAScript 6*1 ã«å°Žå…¥ã•ã‚Œã‚‹äºˆå®šã®æ©Ÿèƒ½ã« WeakMap ã¨ã„ã†ã‚‚ã®ãŒã‚ã‚Šã¾ã™ï¼Žã“ã‚Œã¯å¹³ãŸã言ã†ã¨ã€Œé€£æƒ³é…列ã€ã§ï¼Œã‚ˆã†ã‚„ã ECMAScript ã«ã‚‚ã¾ã¨ã‚‚ãªé€£æƒ³é…列*2ãŒå°Žå…¥ã•ã‚Œã¦å–œã³ã‚‚ã²ã¨ã—ãŠãªæ–¹ã‚‚多ã„ã“ã¨ã§ã—ょã†ï¼Ž ãã® WeakMap ã§ã™ãŒï¼Œä»¥å‰ Proxy を先走ã£ã¦å®Ÿè£…ã—ã¦ãれ㟠Mozilla ãŒå†ã³å…ˆèµ°ã£ã¦å®Ÿè£…ã‚’è¡Œãªã£ã¦ã„ã¾ã™ï¼Žçµæžœã¨ã—㦠Firefox 6 ã‹ã‚‰ã“ã® WeakMap ã¯åˆ©ç”¨å¯èƒ½ã¨ãªã‚Šã¾ã—ãŸï¼Ž 今回㯠5 分間㮠LT ã¨ã„ã†ã“ã¨ã§ä»”ç´°ãªè©±ã¯ç„¡ç†ã¨åˆ¤æ–ã—，抑ãˆã¦ãŠãã¹ã WeakMap
jQueryã®bind/live/delegateã®é•ã„ã¾ã¨ã‚ã€ã¨æ–°API .on()ã®ä½¿ã„æ–¹ - y-kawazã®æ—¥è¨˜
jQueryã®ã‚¤ãƒ™ãƒ³ãƒˆè¨˜è¿°æ–¹æ³•ã¯ã„ãã¤ã‹ã‚ã‚Šã€å¤§é›‘把ã«ãŠã•ã‚‰ã„ã—ãŸã®ãŒä»¥ä¸‹ã®3パターンã§ã™ã€‚ ã¾ãšä¸€ç•ªåŸºæœ¬çš„ãªã®ãŒ $("a").click(fn) ã‚„ $("a").bind('click', fn) ã§ã™ã€‚click(fn)ã¯bind('click', fn)ã®çœç•¥å½¢ã§ã™ã€‚ 次ã«jQuery1.3㧠$("a").live("click", fn) ã¨ã„ã†æ©Ÿèƒ½ãŒå‡ºæ¥ã¾ã—ãŸã€‚liveã®è‰¯ã„ã¨ã“ã‚ã¯DOMæ“作ã§å‡ºãŸã‚Šæ¶ˆãˆãŸã‚Šã™ã‚‹ã‚¨ãƒ¬ãƒ¡ãƒ³ãƒˆã«å¯¾ã—ã¦å†ãƒã‚¤ãƒ³ãƒ‰ç„¡ã—ã§ã‚¤ãƒ™ãƒ³ãƒˆå®šç¾©ãŒã§ãる利便性ã¨ã€å†…部的ã«ã¯bind個所ãŒdocumentã®1ã‹æ‰€ã«ãªã‚Šè¤‡æ•°å€‹æ‰€ã¸ã®bindãŒç„¡ããªã‚‹ã“ã¨ã«ã‚ˆã‚‹ãƒ¡ãƒ¢ãƒªåŠ¹çŽ‡ã¨å®ŸåŠ¹é€Ÿåº¦ã®å‘上ã§ã™ã€‚ æ›´ã«jQuery1.4.2㧠$("#foo").delegate("a", "click", fn) ã¨ã„ã†æ›¸ãæ–¹ãŒå‡ºæ¥ã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã—ãŸã€‚ã“ã‚Œã¯ç‰¹å®šè¦ç´ 以下ã«é™å®šã™ã‚‹liv
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Introduction The purpose of this page is to establish a concise and consistent approach to secure application development of Mozilla web applications and web services. The information provided here will be focused towards web based applications; however, the concepts can be universally applied to applications to implement sound security controls and design. This page will largely focus on secure g
Filter.js — A Client-side Search Filter With JSON & jQuery
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The original source of JSONLint There have been many implementations using this pure JavaScript implementation of JSONLint to format JSON on sites like JSONLint.com (the original), JSONLint Pro (a new version without ads). Both sites make it easy to format and validate JSON. JSONLint is an online tool for validating and formatting JSON (JavaScript Object Notation) data. It can be used to check if
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Firefox Security Features
25. <!-- インラインCSSã¯æœ€æ–°ä»•æ§˜ã§ã¯é©ç”¨ã•ã‚Œãªã„(未実装) --> <style> body { font-size: 200%; } </style> <p style="font-size: 200%;">I love lesser panda!</p> <!-- インラインJavaScriptã¯å®Ÿè¡Œã•ã‚Œãªã„(実装済ã¿) --> <script> alert("inline script"); </script> <p onclick="alert('inline script')">Red panda!</p> <!-- 外部 CSS, JavaScript ã¯ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆè¨±å¯ --> <link rel="stylesheet" href="external.css"/> <script src="external.js"></script> https://develo
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