57 lines
2.0 KiB
TypeScript
57 lines
2.0 KiB
TypeScript
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import type {
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NearestHours,
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NearestToUnitOptions,
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RoundingOptions,
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} from "./types.js";
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/**
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* The {@link roundToNearestHours} function options.
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*/
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export interface RoundToNearestHoursOptions
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extends NearestToUnitOptions<NearestHours>,
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RoundingOptions {}
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/**
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* @name roundToNearestHours
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* @category Hour Helpers
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* @summary Rounds the given date to the nearest hour
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*
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* @description
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* Rounds the given date to the nearest hour (or number of hours).
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* Rounds up when the given date is exactly between the nearest round hours.
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*
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* @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).
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*
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* @param date - The date to round
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* @param options - An object with options.
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*
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* @returns The new date rounded to the closest hour
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*
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* @example
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* // Round 10 July 2014 12:34:56 to nearest hour:
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* const result = roundToNearestHours(new Date(2014, 6, 10, 12, 34, 56))
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* //=> Thu Jul 10 2014 13:00:00
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*
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* @example
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* // Round 10 July 2014 12:34:56 to nearest half hour:
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* const result = roundToNearestHours(new Date(2014, 6, 10, 12, 34, 56), { nearestTo: 6 })
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* //=> Thu Jul 10 2014 12:00:00
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* @example
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* // Round 10 July 2014 12:34:56 to nearest half hour:
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* const result = roundToNearestHours(new Date(2014, 6, 10, 12, 34, 56), { nearestTo: 8 })
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* //=> Thu Jul 10 2014 16:00:00
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* @example
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* // Floor (rounds down) 10 July 2014 12:34:56 to nearest hour:
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* const result = roundToNearestHours(new Date(2014, 6, 10, 1, 23, 45), { roundingMethod: 'ceil' })
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* //=> Thu Jul 10 2014 02:00:00
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*
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* @example
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* // Ceil (rounds up) 10 July 2014 12:34:56 to nearest quarter hour:
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* const result = roundToNearestHours(new Date(2014, 6, 10, 12, 34, 56), { roundingMethod: 'floor', nearestTo: 8 })
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* //=> Thu Jul 10 2014 08:00:00
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*/
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export declare function roundToNearestHours<DateType extends Date>(
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date: DateType | number | string,
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options?: RoundToNearestHoursOptions,
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): Date;
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