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import toDate from "../toDate/index.js";
import isLeapYear from "../isLeapYear/index.js";
import requiredArgs from "../_lib/requiredArgs/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.
*
* @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?
* const result = getDaysInYear(new Date(2012, 0, 1))
* //=> 366
*/
export default function getDaysInYear(dirtyDate) {
requiredArgs(1, arguments);
var date = toDate(dirtyDate);
if (String(new Date(date)) === 'Invalid Date') {
return NaN;
}
return isLeapYear(date) ? 366 : 365;
}
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