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<iframe src="https://www.csdn.net/" frameborder="0"></iframe>
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var _per=window.performance;
function getmb(size){
return Math.floor(size/1024/1024,4)+'mb';
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function getsec(time){
return time/1000+'s';
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console.log("内存占用:"+getmb(_per.memory.usedJSHeapSize));
console.log("TCP链接耗时:"+getsec(_per.timing.connectEnd-_per.timing.connectStart));
console.log("响应耗时"+getsec(_per.timing.responseEnd-_per.timing.responseStart));
window.οnlοad=function(){
console.log("dom渲染耗时:"+getsec(_per.timing.domComplete-_per.timing.domLoading));
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获取页面dom渲染时间,内存占用时间,响应耗时,TCP连接耗时
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转载自blog.csdn.net/month_ss_815/article/details/104626026
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