PerformanceObserver.disconnect()

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.

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

js
disconnect()

参数

无。

返回值

无（undefined）。

示例

js
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
Performance Timeline
# dom-performanceobserver-disconnect

浏览器兼容性

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