39 lines
1 KiB
JavaScript
39 lines
1 KiB
JavaScript
"use strict";
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exports.differenceInCalendarYears = differenceInCalendarYears;
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var _index = require("./_lib/normalizeDates.cjs");
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/**
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* The {@link differenceInCalendarYears} function options.
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*/
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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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* @param laterDate - The later date
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* @param earlierDate - The earlier date
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* @param options - An object with options
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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(laterDate, earlierDate, options) {
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const [laterDate_, earlierDate_] = (0, _index.normalizeDates)(
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options?.in,
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laterDate,
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earlierDate,
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);
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return laterDate_.getFullYear() - earlierDate_.getFullYear();
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}
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