web api instance property
PerformanceTiming: unloadEventStart property
[!WARNING] This interface of this property is deprecated in the Navigation Timing Level 2 specification. Please use the
PerformanceNavigationTiminginterface instead.
The legacy
PerformanceTiming.unloadEventStart
read-only property returns an unsigned long long representing the moment,
in milliseconds since the UNIX epoch, the unload event has been thrown. If
there is no previous document, or if the previous document, or one of the needed
redirects, is not of the same origin, the value returned is 0.
Value
An unsigned long long.
Specifications
SpecificationsStandards references are available on the canonical MDN page.
Browser compatibility
Browser compatibilityCompatibility data is available on the canonical MDN page.
See also
- The
PerformanceTiminginterface it belongs to.