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import toDate from "../toDate/index.js";
import startOfYear from "../startOfYear/index.js";
import differenceInCalendarDays from "../differenceInCalendarDays/index.js";
import requiredArgs from "../_lib/requiredArgs/index.js";
/**
* @name getDayOfYear
* @category Day Helpers
* @summary Get the day of the year of the given date.
*
* @description
* Get the day of the year of the given date.
*
* @param {Date|Number} date - the given date
* @returns {Number} the day of year
* @throws {TypeError} 1 argument required
*
* @example
* // Which day of the year is 2 July 2014?
* const result = getDayOfYear(new Date(2014, 6, 2))
* //=> 183
*/
export default function getDayOfYear(dirtyDate) {
requiredArgs(1, arguments);
var date = toDate(dirtyDate);
var diff = differenceInCalendarDays(date, startOfYear(date));
var dayOfYear = diff + 1;
return dayOfYear;
}
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