How to write palindrome in JavaScript

Question

I wonder how to write palindrome in javascript, where I input different words and program shows if word is palindrome or not. For example word noon is palindrome, while bad

Answer 1

To avoid errors with special characters use this function below

function palindrome(str){
  var removeChar = str.replace(/[^A-Z0-9]/ig, "").toLowerCase();
  var checkPalindrome = removeChar.split('').reverse().join('');
  if(removeChar === checkPalindrome){
     return true;
  }else{
    return false;
  }
}