123456789101112131415161718192021222324252627282930313233343536373839404142434445464748
import requiredArgs from '../_lib/requiredArgs/index.ts'
/** * @name isDate * @category Common Helpers * @summary Is the given value a date? * * @description * Returns true if the given value is an instance of Date. The function works for dates transferred across iframes. * * ### 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 {*} value - the value to check * @returns {boolean} true if the given value is a date * @throws {TypeError} 1 arguments required * * @example * // For a valid date: * const result = isDate(new Date()) * //=> true * * @example * // For an invalid date: * const result = isDate(new Date(NaN)) * //=> true * * @example * // For some value: * const result = isDate('2014-02-31') * //=> false * * @example * // For an object: * const result = isDate({}) * //=> false */export default function isDate(value: unknown): value is Date {  requiredArgs(1, arguments)
  return (    value instanceof Date ||    (typeof value === 'object' &&      Object.prototype.toString.call(value) === '[object Date]')  )}