Shulou(Shulou.com)06/01 Report--

Editor to share with you how JavaScript uses performance.timing for performance analysis. I hope you will get something after reading this article. Let's discuss it together.

Performance.timing: using performance.timing for performance analysis

_ window.onload = function () {setTimeout (function () {let t = performance.timing) Console.log ('DNS query time:' + (t.domainLookupEnd-t.domainLookupStart). ToFixed (0)) console.log ('TCP link time:' + (t.connectEnd-t.connectStart). ToFixed (0)) console.log ('request request time:' + (t.responseEnd-t.responseStart). ToFixed (0) console.log ('time spent parsing dom tree:' + (t) .domComplete-t.domInteractive) .toFixed (0) console.log ('white screen time:' + (t.responseStart-t.navigationStart) .toFixed (0)) console.log ('domready time:' + (t.domContentLoadedEventEnd-t.navigationStart). ToFixed (0)) console.log ('onload time:' + (t.loadEventEnd-t.navigationStart) .toFixed (0)) if (t = performance.memory) {console.log ('js memory usage ratio:'+ (t.usedJSHeapSize / t.totalJSHeapSize * 100) .tofixed (2) +'%'}})} finished reading this article I believe you have a certain understanding of "how JavaScript uses performance.timing for performance analysis". If you want to know more about it, you are welcome to follow the industry information channel. Thank you for reading!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.