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31 lines
1.2 KiB
31 lines
1.2 KiB
import toInteger from '../_lib/toInteger/index.js';
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import addDays from '../addDays/index.js';
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import requiredArgs from '../_lib/requiredArgs/index.js';
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/**
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* @name subDays
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* @category Day Helpers
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* @summary Subtract the specified number of days from the given date.
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*
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* @description
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* Subtract the specified number of days from 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 days to be subtracted. Positive decimals will be rounded using `Math.floor`, decimals less than zero will be rounded using `Math.ceil`.
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* @returns {Date} the new date with the days subtracted
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* @throws {TypeError} 2 arguments required
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*
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* @example
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* // Subtract 10 days from 1 September 2014:
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* var result = subDays(new Date(2014, 8, 1), 10)
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* //=> Fri Aug 22 2014 00:00:00
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*/
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export default function subDays(dirtyDate, dirtyAmount) {
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requiredArgs(2, arguments);
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var amount = toInteger(dirtyAmount);
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return addDays(dirtyDate, -amount);
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} |