The disconnect() method of the PerformanceObserver interface is used to stop the performance observer from receiving any performance entry events.
observer.disconnect();
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"]});
| Specification | Status | Comment |
|---|---|---|
| Performance Timeline Time Level 2 The definition of 'disconnect()' in that specification. | Editor's Draft | Initial definition of disconnect() method. |
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | 52 | 57 (57) | No support | 39 | No support |
| Available on workers | 62 | (Yes) | (Yes) | 49 | (Yes) |
| Feature | Android Webview | Chrome for Android | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | No support | 52 | 57.0 (57) | No support | 39 | No support |
| Available on workers | No support | 62 | (Yes) | (Yes) | 49 | (Yes) |
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https://developer.mozilla.org/en-US/docs/Web/API/PerformanceObserver/disconnect