isPalindrome = function(s) {
    if (!s.length) return true;
    
    const alphaNumeric = filterAlphaNumeric(s);/* Time O(N) | Space O(N) */
    const reversed = reverse(alphaNumeric);    /* Time O(N) | Space O(N) */
    
    return alphaNumeric === reversed;
}
Array - Filter && Clone && Reverse
Time O(N) | Space O(N)
https://leetcode.com/problems/valid-palindrome/
@param {string} s
@return {boolean}