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- import { isLeapYear } from "./isLeapYear.mjs";
- import { toDate } from "./toDate.mjs";
- /**
- * @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.
- *
- * @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).
- *
- * @param date - The given date
- *
- * @returns The number of days in a year
- *
- * @example
- * // How many days are in 2012?
- * const result = getDaysInYear(new Date(2012, 0, 1))
- * //=> 366
- */
- export function getDaysInYear(date) {
- const _date = toDate(date);
- if (String(new Date(_date)) === "Invalid Date") {
- return NaN;
- }
- return isLeapYear(_date) ? 366 : 365;
- }
- // Fallback for modularized imports:
- export default getDaysInYear;
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