Window: performance property
BaselineWidely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2015.
Theperformance property of theWindow interface returns aPerformance 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
APerformance 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 |