34 lines
1.1 KiB
JavaScript
34 lines
1.1 KiB
JavaScript
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import toInteger from '../_lib/toInteger/index.js';
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import addDays from '../addDays/index.js';
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/**
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* @name addWeeks
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* @category Week Helpers
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* @summary Add the specified number of weeks to the given date.
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*
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* @description
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* Add the specified number of week to the given date.
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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 be changed
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* @param {Number} amount - the amount of weeks to be added
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* @returns {Date} the new date with the weeks added
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* @throws {TypeError} 2 arguments required
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*
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* @example
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* // Add 4 weeks to 1 September 2014:
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* var result = addWeeks(new Date(2014, 8, 1), 4)
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* //=> Mon Sep 29 2014 00:00:00
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*/
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export default function addWeeks(dirtyDate, dirtyAmount) {
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if (arguments.length < 2) {
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throw new TypeError('2 arguments required, but only ' + arguments.length + ' present');
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}
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var amount = toInteger(dirtyAmount);
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var days = amount * 7;
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return addDays(dirtyDate, days);
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}
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