13 lines
557 B
TypeScript
13 lines
557 B
TypeScript
|
export interface PerformanceEntryHandler {
|
||
|
|
(entry: PerformanceEntry): void;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Takes a performance entry type and a callback function, and creates a
|
||
|
|
* `PerformanceObserver` instance that will observe the specified entry type
|
||
|
|
* with buffering enabled and call the callback _for each entry_.
|
||
|
|
*
|
||
|
|
* This function also feature-detects entry support and wraps the logic in a
|
||
|
|
* try/catch to avoid errors in unsupporting browsers.
|
||
|
|
*/
|
||
|
|
export declare const observe: (type: string, callback: PerformanceEntryHandler) => PerformanceObserver | undefined;
|