IE9 +:在处理DOM时性能较差 [英] IE9+: poor performance while dealing with DOM

问题描述

与其他浏览器相比，IE9执行).我好奇;它会以什么方式影响下一代富应用程序的执行速度?除了此迭代测试之外，是否还有任何相关的真实世界webapp示例，可以在其中观察性能差异?另外，这是他们的JS引擎还是Layout引擎的问题?

Compared to other browsers, IE9 executes this script (for dynamic manipulation of DOM) with a very long running time. I am curious; in what ways would it impact the execution speed of next-generation rich applications? Other than this iterative test, is there any related real world webapp example, where we can observe the difference in performance? Also, is it the problem with their JS engine or the Layout engine?

此问题已在IE10 RTM中解决.

The issue is resolved in IE10 RTM.

推荐答案

使用:

function testAppendFrag(div) {
    var docFrag=document.createDocumentFragment(),i=count;
    while(i--){
        docFrag.appendChild(document.createElement("div"));
    }
    div.appendChild(docFrag.cloneNode(true));
}

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