check have a palindrome

palindromeTwo.js

let string = "A man, a plan, a canal: Panama";

function palindromeTwo(alphabet) {
 alphabet = alphabet.replace(/[^a-z0-9]/gi, "").toLowerCase();
 let reverse = alphabet.split("").reverse().join("");
 return alphabet === reverse;
}

palindromeTwo(string);

// the output will be result : true