Web/API/PerformanceObserver/disconnect

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

Syntax

performanceObserver.disconnect();

Example

var observer = new PerformanceObserver(function(list, obj) {
  var entries = list.getEntries();
  for (var i=0; i < entries.length; i++) {
    // Process "mark" and "frame" events
  }
});
observer.observe({entryTypes: ["mark", "frame"]});

function perf_observer(list, observer) {
  // Process the "measure" event 
  // ...
  // Disable additional performance events
  observer.disconnect();
}
var observer2 = new PerformanceObserver(perf_observer);
observer2.observe({entryTypes: ["measure"]});

Specifications

Specification	Status	Comment
Performance Timeline Level 2The definition of 'disconnect()' in that specification.	Candidate Recommendation	Initial definition of disconnect() method.

Browser compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
disconnect	Chrome Full support 52	Edge Full support ≤79	Firefox Full support 57	IE No support No	Opera Full support 39	Safari Full support 11	WebView Android Full support 52	Chrome Android Full support 52	Firefox Android Full support 57	Opera Android Full support 41	Safari iOS Full support 11	Samsung Internet Android Full support 6.0

Legend

Full support  

Full support

No support  

No support

PeformanceObserver.disconnect() by Mozilla Contributors is licensed under CC-BY-SA 2.5.