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31 lines
1.0 KiB
31 lines
1.0 KiB
3 years ago
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import toDate from '../toDate/index.js';
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import endOfDay from '../endOfDay/index.js';
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import endOfMonth from '../endOfMonth/index.js';
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import requiredArgs from '../_lib/requiredArgs/index.js';
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/**
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* @name isLastDayOfMonth
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* @category Month Helpers
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* @summary Is the given date the last day of a month?
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*
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* @description
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* Is the given date the last day of a month?
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*
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* ### v2.0.0 breaking changes:
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*
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* - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes).
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*
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* @param {Date|Number} date - the date to check
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* @returns {Boolean} the date is the last day of a month
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* @throws {TypeError} 1 argument required
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*
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* @example
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* // Is 28 February 2014 the last day of a month?
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* var result = isLastDayOfMonth(new Date(2014, 1, 28))
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* //=> true
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*/
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export default function isLastDayOfMonth(dirtyDate) {
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requiredArgs(1, arguments);
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var date = toDate(dirtyDate);
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return endOfDay(date).getTime() === endOfMonth(date).getTime();
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}
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