PerformanceTiming.fetchStart - Web APIs 编辑

This interface of this property is deprecated in the Navigation Timing Level 2 specification. Please use the PerformanceNavigationTiming interface instead.

The legacy PerformanceTiming.fetchStart read-only property returns an unsigned long long representing the moment, in miliseconds since the UNIX epoch, the browser is ready to fetch the document using an HTTP request. This moment is before the check to any application cache.

Syntax

time = performance.timing.fetchStart;

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• The PerformanceTiming interface it belongs to.PerformanceTiming.fetchStart