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s += "\r\nÄãµÄÆÁÄ»ÉèÖÃÊÇ "+ window.screen.colorDepth +" Î»²ÊÉ«";
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[·­Òë]High Performance JavaScript(018)

String Trimming  ×Ö·û´®ÐÞ¼ô
    Removing leading and trailing whitespace from a string is a simple but common task. Although ECMAScript 5 adds a native string trim method (and you should therefore start to see this method in upcoming browsers), JavaScript has not historically in ......

[·­Òë]High Performance JavaScript(028)

JavaScript Minification  JavaScript½ô´Õ
    JavaScript minification is the process by which a JavaScript file is stripped of everything that does not contribute to its execution. This includes comments and unnecessary whitespace. The process typically reduces the file size by ha ......

[·­Òë]High Performance JavaScript(030)

µÚʮՠ Tools  ¹¤¾ß
    Having the right software is essential for identifying bottlenecks in both the loading and running of scripts. A number of browser vendors and large-scale websites have shared techniques and tools to help make the Web faster and more efficient. This ......

[·­Òë]High Performance JavaScript(033)

Summary  ×ܽá
    When web pages or applications begin to feel slow, analyzing assets as they come over the wire and profiling scripts while they are running allows you to focus your optimization efforts where they are needed most.
    µ±ÍøÒ³»òÓ¦ÓóÌÐò±äÂýʱ£¬·ÖÎ ......

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