Function.apply and Function.call in JavaScript
In order to explain how the createDelegate function works in the last post, we have to understand JavaScript closures and Function.apply(). The apply() method is the easiest subject to tackle, so we'll start there and work up. Every function in JavaScript has a number of attached methods, including toString(), call(), and apply(). If it sounds odd to you that a function might have its own methods
callã¨apply - ã“ã‚“ã«ã¡ã¯ã“ã‚“ã«ã¡ã¯monmonã§ã™ï¼
342 åå‰ï¼šName_Not_Found[] 投稿日：2007/10/10(æ°´) 13:05:02 ID:0D5oBjKl callã¨applyãŒã‚ˆãã‚ã‹ã‚Šã¾ã›ã‚“。ç†è§£ã®ãŸã‚ã®ãƒ’ントãŠé¡˜ã„ã—ã¾ã™ã€‚ 343 åå‰ï¼šName_Not_Found[sage] 投稿日：2007/10/10(æ°´) 13:57:44 ID:??? >>342 JavaScriptã§ã¯é–¢æ•°ã‚’変数ã«å…¥ã‚Œã¦ãŠãã“ã¨ãŒã§ãるよã。 var fn = function(s, t) { alert(s+t); }; fn('hello', 'world'); â†å‘¼ã³å‡ºã™ ã—ã‹ã—ã“ã®æ–¹æ³•ã ã¨ã‚ªãƒ–ジェクトã®ãƒ¡ã‚½ãƒƒãƒ‰å‘¼ã³å‡ºã—ã¯ã§ããªã„ var obj = new XXX(...); obj.fn1 = fn; obj.fn1('hello', 'world'); 上記ã®ã‚ˆã†ã«æ›¸ãæ›ãˆã¦ã—ã¾ãˆã°ã§ãã‚‹ã‘ã©æ›¸ãæ›ãˆãŸããªã„ã“ã¨ã‚‚。ã§ã€
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