PerformanceObserver

package js.html

Available on js

The PerformanceObserver interface is used to observe performance measurement events and be notified of new performance entries as they are recorded in the browser's performance timeline.

Documentation PerformanceObserver by Mozilla Contributors, licensed under CC-BY-SA 2.5.

See also:

• https://developer.mozilla.org/en-US/docs/Web/API/PerformanceObserver

Constructor

new(callback:(PerformanceObserverEntryList, PerformanceObserver) ‑> Void)

Throws:

null	DOMError

Methods

disconnect():Void

observe(options:PerformanceObserverInit):Void

takeRecords():Array<PerformanceEntry>