Marc Mintel
5397309103
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34 lines
1.0 KiB
Plaintext
34 lines
1.0 KiB
Plaintext
"use strict";
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exports.differenceInCalendarYears = differenceInCalendarYears;
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var _index = require("./toDate.js");
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/**
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* @name differenceInCalendarYears
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* @category Year Helpers
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* @summary Get the number of calendar years between the given dates.
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*
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* @description
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* Get the number of calendar years between the given dates.
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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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* @returns The number of calendar years
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*
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* @example
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* // How many calendar years are between 31 December 2013 and 11 February 2015?
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* const result = differenceInCalendarYears(
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* new Date(2015, 1, 11),
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* new Date(2013, 11, 31)
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* )
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* //=> 2
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*/
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function differenceInCalendarYears(dateLeft, dateRight) {
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const _dateLeft = (0, _index.toDate)(dateLeft);
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const _dateRight = (0, _index.toDate)(dateRight);
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return _dateLeft.getFullYear() - _dateRight.getFullYear();
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}
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