javascript - Check for Palindrome (ignore special characters, whitespace, and capitalization) -

objective determine whether or not string palindrome ignoring whitespaces, special characters, , capitalization.

javascript

    function palindrome(str) {   //remove punctuation, whitespace, capitalization, , special characters original string -    var original = str.replace(/[\.,-\/#!$%\^&\*;:{}=\-_`~()]/g,"")                    .replace(/\s/g," ").tolowercase();    //take original sentence , reverse   var reverse = original.split('').reverse().join('');    //compare original vs reversed   if (original == reverse) {     return true;   } else {     return false;   }  }   palindrome("eye"); 

questions

1. i've created aforementioned code checking online (palindrome check). missing anything?
2. i using regex handle punctuation , whitespace , checks out.

you can join 2 replace chained methods 1 including \s character class (and add missing common special characters):

var original = str.replace(/[\s"'.,-\/#!$%\^&*;:{}=\-_`~()\\\[\]@+|?><]/g,"").tolowercase();