Window: performance property - Web APIs | MDN (original) (raw)
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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
| Specification |
|---|
| High Resolution Time # the-performance-attribute |