| 1 | import { toDate } from "./toDate.js";
|
| 2 |
|
| 3 | /**
|
| 4 | * @name isLeapYear
|
| 5 | * @category Year Helpers
|
| 6 | * @summary Is the given date in the leap year?
|
| 7 | *
|
| 8 | * @description
|
| 9 | * Is the given date in the leap year?
|
| 10 | *
|
| 11 | * @param date - The date to check
|
| 12 | * @param options - The options object
|
| 13 | *
|
| 14 | * @returns The date is in the leap year
|
| 15 | *
|
| 16 | * @example
|
| 17 | * // Is 1 September 2012 in the leap year?
|
| 18 | * const result = isLeapYear(new Date(2012, 8, 1))
|
| 19 | * //=> true
|
| 20 | */
|
| 21 | export function isLeapYear(date, options) {
|
| 22 | const _date = toDate(date, options?.in);
|
| 23 | const year = _date.getFullYear();
|
| 24 | return year % 400 === 0 || (year % 4 === 0 && year % 100 !== 0);
|
| 25 | }
|
| 26 |
|
| 27 | // Fallback for modularized imports:
|
| 28 | export default isLeapYear;
|