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11 lines
615 B
11 lines
615 B
import { FIDReportCallbackWithAttribution, ReportOpts } from '../types.js';
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/**
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* Calculates the [FID](https://web.dev/fid/) value for the current page and
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* calls the `callback` function once the value is ready, along with the
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* relevant `first-input` performance entry used to determine the value. The
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* reported value is a `DOMHighResTimeStamp`.
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*
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* _**Important:** since FID is only reported after the user interacts with the
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* page, it's possible that it will not be reported for some page loads._
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*/
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export declare const onFID: (onReport: FIDReportCallbackWithAttribution, opts?: ReportOpts) => void;
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