PerformanceObserver: disconnect() method

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.

Note: This feature is available in Web Workers.

The disconnect() method of the PerformanceObserver interface is used to stop the performance observer from receiving any performance entry events.

Syntax

js
disconnect()

Parameters

None.

Return value

None (undefined).

Examples

Stopping a performance observer

The following example disconnects the performance observer to disable receiving any more performance entry events.

js
const observer = new PerformanceObserver((list, obj) => {
  list.getEntries().forEach((entry) => {
    // Process "measure" events
    // …
    // Disable additional performance events
    observer.disconnect();
  });
});
observer.observe({ entryTypes: ["mark", "measure"] });

Specifications

Specification
Performance Timeline
# dom-performanceobserver-disconnect

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
disconnect

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support