Regex validate PIN code

[RazvanBugoi]

https://www.codewars.com/kata/55f8a9c06c018a0d6e000132/train/javascript

[RazvanBugoi]

function validatePIN (pin) {
  let str = pin.trim().split('');
  return str.length == 4 || str.length == 6 ? str.map((el) => Number(el)).filter((num) => Number.isInteger(num)).length == str.length : false;
}

[RazvanBugoi]

function validatePIN (pin) {
  return (/^(\d{4})$|^(\d{6})$/g).test(pin);
}