PerformanceTiming.connectStart - 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.connectStart read-only property returns an unsigned long long representing the moment, in miliseconds since the UNIX epoch, where the request to open a connection is sent to the network. If the transport layer reports an error and the connection establishment is started again, the last connection establisment start time is given. If a persistent connection is used, the value will be the same as PerformanceTiming.fetchStart.

Syntax

time = performanceTiming.connectStart;

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• The PerformanceTiming interface it belongs to.