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