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[·­Òë]High Performance JavaScript(004)

XMLHttpRequest Script Injection  XHR½Å±¾×¢Èë
    Another approach to nonblocking scripts is to retrieve the JavaScript code using an XMLHttpRequest (XHR) object and then inject the script into the page. This technique involves creating an XHR object, downloading the JavaScript f ......

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function Person(){}
Person.prototype.name = "jack";
Person.prototype.getName = function() { return this.name;}

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var lunarInfo=new Array(
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