PerformanceObserverEntryList 类

PerformanceObserverEntryList 类用于提供对传给 PerformanceObserver 的 PerformanceEntry 实例的访问。 此类的构造函数不会暴露给用户。

The PerformanceObserverEntryList class is used to provide access to the PerformanceEntry instances passed to a PerformanceObserver. The constructor of this class is not exposed to users.