Window: performance property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨September 2015⁩.

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The performance property of the Window interface returns a Performance object, which can be used to gather performance information about code running in the window's scope.

Performance entries are per context. If you create a mark on the main thread (or other worker), you cannot see it in a worker thread, and vice versa.

Value

A Performance object offering access to performance and timing-related information about code running in the window's scope.

Specifications

Browser compatibility

See also

• WorkerGlobalScope.performance