PeformanceObserver.disconnect()

 

PerformanceObserver 接口的 disconnect() 方法用于阻止性能观察者接收任何 性能条目 事件。

语法

performanceObserver.disconnect();

例子

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"]});

规范

Specification Status Comment
Performance Timeline Level 2
disconnect()
Candidate Recommendation disconnect() 方法的初始定义。

浏览器兼容性

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
disconnectChrome Full support 52Edge ? Firefox Full support 57IE No support NoOpera Full support 39Safari Full support 11WebView Android Full support 52Chrome Android Full support 52Edge Mobile ? Firefox Android Full support 57Opera Android Full support 41Safari iOS Full support 11Samsung Internet Android ?

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown

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