import { isDate } from "./isDate.mjs"; import { toDate } from "./toDate.mjs"; /** * @name isValid * @category Common Helpers * @summary Is the given date valid? * * @description * Returns false if argument is Invalid Date and true otherwise. * Argument is converted to Date using `toDate`. See [toDate](https://date-fns.org/docs/toDate) * Invalid Date is a Date, whose time value is NaN. * * Time value of Date: http://es5.github.io/#x15.9.1.1 * * @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 date to check * * @returns The date is valid * * @example * // For the valid date: * const result = isValid(new Date(2014, 1, 31)) * //=> true * * @example * // For the value, convertable into a date: * const result = isValid(1393804800000) * //=> true * * @example * // For the invalid date: * const result = isValid(new Date('')) * //=> false */ export function isValid(date) { if (!isDate(date) && typeof date !== "number") { return false; } const _date = toDate(date); return !isNaN(Number(_date)); } // Fallback for modularized imports: export default isValid;