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Diffstat (limited to 'date-fns/src/endOfMonth/index.ts')
-rw-r--r-- | date-fns/src/endOfMonth/index.ts | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/date-fns/src/endOfMonth/index.ts b/date-fns/src/endOfMonth/index.ts new file mode 100644 index 0000000..e5b8f9c --- /dev/null +++ b/date-fns/src/endOfMonth/index.ts @@ -0,0 +1,34 @@ +import toDate from '../toDate/index' +import requiredArgs from '../_lib/requiredArgs/index' + +/** + * @name endOfMonth + * @category Month Helpers + * @summary Return the end of a month for the given date. + * + * @description + * Return the end of a month for the given date. + * The result will be in the local timezone. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the original date + * @returns {Date} the end of a month + * @throws {TypeError} 1 argument required + * + * @example + * // The end of a month for 2 September 2014 11:55:00: + * const result = endOfMonth(new Date(2014, 8, 2, 11, 55, 0)) + * //=> Tue Sep 30 2014 23:59:59.999 + */ +export default function endOfMonth(dirtyDate: Date | number): Date { + requiredArgs(1, arguments) + + const date = toDate(dirtyDate) + const month = date.getMonth() + date.setFullYear(date.getFullYear(), month + 1, 0) + date.setHours(23, 59, 59, 999) + return date +} |