PerformanceObserver.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
disconnect()
参数
无。
返回值
无(undefined
)。
示例
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
BCD tables only load in the browser