30 lines
995 B
TypeScript
30 lines
995 B
TypeScript
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/**
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* @name differenceInCalendarISOWeeks
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* @category ISO Week Helpers
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* @summary Get the number of calendar ISO weeks between the given dates.
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*
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* @description
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* Get the number of calendar ISO weeks between the given dates.
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*
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* ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_date
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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 dateLeft - The later date
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* @param dateRight - The earlier date
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*
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* @returns The number of calendar ISO weeks
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*
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* @example
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* // How many calendar ISO weeks are between 6 July 2014 and 21 July 2014?
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* const result = differenceInCalendarISOWeeks(
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* new Date(2014, 6, 21),
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* new Date(2014, 6, 6)
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* )
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* //=> 3
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*/
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export declare function differenceInCalendarISOWeeks<DateType extends Date>(
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dateLeft: DateType | number | string,
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dateRight: DateType | number | string,
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): number;
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