Palindrome Checker: Return true if the given string is a palindrome. Otherwise, return false. A palindrome is a word or sentence that's spelled the same way both forward and backward, ignoring punctuation, case, and spacing. Note You'll need to remove all non-alphanumeric characters (punctuation, spaces and symbols) and turn everything into the …

palindromeChecker.js

function palindrome(str) {
  let newStr = str.replace(/\W/g, '');
  newStr = newStr.replace('_', '').toLowerCase();
  let revStr = newStr.split('').reverse().join('');
  if(newStr === revStr){
    return true;
  }
  return false;
}

//palindrome("eye");
//palindrome("0_0 (: /-\ :) 0-0");
//palindrome("five|\_/|four");
palindrome("A man, a plan, a canal. Panama");

function palindrome(str) {
  str = str.replace(/[^a-zA-Z0-9]/g, '');
  return str.toLowerCase() == str.toLowerCase().split('').reverse().join('');
}