w3c performance api 学习

来源：互联网发布：巴黎必去景点知乎编辑：程序博客网时间：2024/06/14 01:21

interface PerformanceTiming {  readonly attribute unsigned long long navigationStart;   //打开网页的那个时间点  readonly attribute unsigned long long unloadEventStart;  readonly attribute unsigned long long unloadEventEnd;  readonly attribute unsigned long long redirectStart;  readonly attribute unsigned long long redirectEnd;  readonly attribute unsigned long long fetchStart;  readonly attribute unsigned long long domainLookupStart;  readonly attribute unsigned long long domainLookupEnd;  readonly attribute unsigned long long connectStart;  readonly attribute unsigned long long connectEnd;  readonly attribute unsigned long long secureConnectionStart;  readonly attribute unsigned long long requestStart;  readonly attribute unsigned long long responseStart;  readonly attribute unsigned long long responseEnd;  readonly attribute unsigned long long domLoading;  readonly attribute unsigned long long domInteractive;  readonly attribute unsigned long long domContentLoadedEventStart;  readonly attribute unsigned long long domContentLoadedEventEnd;  readonly attribute unsigned long long domComplete;  readonly attribute unsigned long long loadEventStart;  readonly attribute unsigned long long loadEventEnd;};

调用PerformanceTiming 的方法是：

window.performance.timing

参考：https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/NavigationTiming/Overview.html