49 lines
1.3 KiB
JavaScript
49 lines
1.3 KiB
JavaScript
"use strict";
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exports.differenceInCalendarMonths = differenceInCalendarMonths;
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var _index = require("./_lib/normalizeDates.cjs");
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var _index2 = require("./_core/getMonth.cjs");
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var _index3 = require("./_core/getFullYear.cjs");
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/**
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* The {@link differenceInCalendarMonths} function options.
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*/
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/**
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* @name differenceInCalendarMonths
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* @category Month Helpers
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* @summary Get the number of calendar months between the given dates.
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*
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* @description
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* Get the number of calendar months 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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*
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* @returns The number of calendar months
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*
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* @example
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* // How many calendar months are between 31 January 2014 and 1 September 2014?
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* const result = differenceInCalendarMonths(
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* new Date(2014, 8, 1),
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* new Date(2014, 0, 31)
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* )
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* //=> 8
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*/
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function differenceInCalendarMonths(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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const yearsDiff =
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(0, _index3.getFullYear)(laterDate_) -
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(0, _index3.getFullYear)(earlierDate_);
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const monthsDiff =
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(0, _index2.getMonth)(laterDate_) - (0, _index2.getMonth)(earlierDate_);
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return yearsDiff * 12 + monthsDiff;
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}
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