shell bypass 403
/**
* @name isExists
* @category Common Helpers
* @summary Is the given date exists?
*
* @description
* Checks if the given arguments convert to an existing date.
*
* @param {Number} year of the date to check
* @param {Number} month of the date to check
* @param {Number} day of the date to check
* @returns {Boolean} the date exists
* @throws {TypeError} 3 arguments required
*
* @example
* // For the valid date:
* var result = isExists(2018, 0, 31)
* //=> true
*
* @example
* // For the invalid date:
* var result = isExists(2018, 1, 31)
* //=> false
*/
export default function isExists(year, month, day) {
if (arguments.length < 3) {
throw new TypeError('3 argument required, but only ' + arguments.length + ' present');
}
var date = new Date(year, month, day);
return date.getFullYear() === year && date.getMonth() === month && date.getDate() === day;
}