script 加载

来源：互联网发布：js判断正则表达式编辑：程序博客网时间：2024/05/21 09:52

需求：js加载完毕需要执行相应操作

上代码：

var script = document.createElement("script");script.setAttribute("type", "text/javascript");//ie  if (script.onreadystatechange) {    script.onreadystatechange = function() {        if (this.readyState == 'loaded') {            alert("preload");            document.getElementsByTagName("head")[0].appendChild(script);        } else if (this.readyState == "complete") {            this.onreadystatechange = null;        }    }    script.src = "http://code.hs-cn.com/jquery/jquery-1.7.1.min.js?_=" + (new Date()).getTime();} else {    script.src = "http://code.hs-cn.com/jquery/jquery-1.7.1.min.js?_=" + (new Date()).getTime();    document.getElementsByTagName("head")[0].appendChild(script);    script.addEventListener("load", function() {        console.log($);    }, false)    script.addEventListener("error", function() {        alert("preload3");    }, false)}

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