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PerformanceObserver

interface PerformanceObserver {

disconnect(): void;

observe(options?: PerformanceObserverInit): void;

takeRecords(): PerformanceEntryList;

}

var PerformanceObserver: {

prototype: PerformanceObserver;

readonly supportedEntryTypes: ReadonlyArray<string>;

new (callback: PerformanceObserverCallback): PerformanceObserver;

};

§Methods

disconnect(): void

observe(options?: PerformanceObserverInit): void

takeRecords(): PerformanceEntryList