PerformanceTiming.connectStart

概要

PerformanceTiming.connectStart 是一个返回代表一个时刻的 unsigned long long 型只读属性,请求连接被发送到网络之时的Unix毫秒时间戳。如果传输层报告错误并且连接的建立重新开始,则把最后建立连接的开始时间作为该值。如果一个持久连接被使用,则该值与 PerformanceTiming.fetchStart 相同。

语法

time = performanceTiming.connectStart;

标准

Specification Status Comment
Navigation Timing
PerformanceTiming.connectStart
Recommendation Initial definition.

浏览器兼容性

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic support
Deprecated
Chrome Full support 6Edge Full support YesFirefox Full support 7IE Full support 9Opera Full support 15Safari No support NoWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 7Opera Android Full support 15Safari iOS No support NoSamsung Internet Android ?

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Deprecated. Not for use in new websites.
Deprecated. Not for use in new websites.

参见

文档标签和贡献者

此页面的贡献者: fscholz, micblo
最后编辑者: fscholz,