hugoWebsite/node_modules/date-fns/esm/subYears/index.js

27 lines
1014 B
JavaScript
Raw Normal View History

2022-10-29 00:20:35 +02:00
import toInteger from "../_lib/toInteger/index.js";
import addYears from "../addYears/index.js";
import requiredArgs from "../_lib/requiredArgs/index.js";
/**
* @name subYears
* @category Year Helpers
* @summary Subtract the specified number of years from the given date.
*
* @description
* Subtract the specified number of years from the given date.
*
* @param {Date|Number} date - the date to be changed
* @param {Number} amount - the amount of years to be subtracted. Positive decimals will be rounded using `Math.floor`, decimals less than zero will be rounded using `Math.ceil`.
* @returns {Date} the new date with the years subtracted
* @throws {TypeError} 2 arguments required
*
* @example
* // Subtract 5 years from 1 September 2014:
* const result = subYears(new Date(2014, 8, 1), 5)
* //=> Tue Sep 01 2009 00:00:00
*/
export default function subYears(dirtyDate, dirtyAmount) {
requiredArgs(2, arguments);
var amount = toInteger(dirtyAmount);
return addYears(dirtyDate, -amount);
}