Tumortisch-Dist/resources/app/node_modules/date-fns/esm/getDaysInYear/index.js

37 lines
1010 B
JavaScript
Raw Permalink Normal View History

2021-06-15 16:00:08 +02:00
import toDate from '../toDate/index.js';
import isLeapYear from '../isLeapYear/index.js';
/**
* @name getDaysInYear
* @category Year Helpers
* @summary Get the number of days in a year of the given date.
*
* @description
* Get the number of days in a year of 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 given date
* @returns {Number} the number of days in a year
* @throws {TypeError} 1 argument required
*
* @example
* // How many days are in 2012?
* var result = getDaysInYear(new Date(2012, 0, 1))
* //=> 366
*/
export default function getDaysInYear(dirtyDate) {
if (arguments.length < 1) {
throw new TypeError('1 argument required, but only ' + arguments.length + ' present');
}
var date = toDate(dirtyDate);
if (isNaN(date)) {
return NaN;
}
return isLeapYear(date) ? 366 : 365;
}