Tumortisch-Dist/resources/app/node_modules/date-fns/esm/subQuarters/index.js
2021-06-15 16:00:08 +02:00

33 lines
1.1 KiB
JavaScript

import toInteger from '../_lib/toInteger/index.js';
import addQuarters from '../addQuarters/index.js';
/**
* @name subQuarters
* @category Quarter Helpers
* @summary Subtract the specified number of year quarters from the given date.
*
* @description
* Subtract the specified number of year quarters from the given date.
*
* ### 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 date to be changed
* @param {Number} amount - the amount of quarters to be subtracted
* @returns {Date} the new date with the quarters subtracted
* @throws {TypeError} 2 arguments required
*
* @example
* // Subtract 3 quarters from 1 September 2014:
* var result = subQuarters(new Date(2014, 8, 1), 3)
* //=> Sun Dec 01 2013 00:00:00
*/
export default function subQuarters(dirtyDate, dirtyAmount) {
if (arguments.length < 2) {
throw new TypeError('2 arguments required, but only ' + arguments.length + ' present');
}
var amount = toInteger(dirtyAmount);
return addQuarters(dirtyDate, -amount);
}