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x/date_fns/getDayOfYear/index.ts

date-fns Deno package
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import toDate from '../toDate/index.ts'import startOfYear from '../startOfYear/index.ts'import differenceInCalendarDays from '../differenceInCalendarDays/index.ts'import requiredArgs from '../_lib/requiredArgs/index.ts'
/** * @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. * * ### 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 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: Date | number): number { requiredArgs(1, arguments)
const date = toDate(dirtyDate) const diff = differenceInCalendarDays(date, startOfYear(date)) const dayOfYear = diff + 1 return dayOfYear}