Palindrome Program Avoiding Spaces, Punctuation In Javascript

I'm trying to make a palindrome program using javascript that will show if a string is palindrome or not by TRUE or FALSE even if the string has punctuation and spaces(ex- madam, i

Solution 1:

Within the "for" clause, replace "Math.floor(finalstring/2)" by "Math.floor(len/2)"

Also, you might want to improve your punctuation removal so that it also removes apostrophes, for instance.

So your code would become the following:

functionisPalindrome (str) {
  var nopunctuation = str.replace(/\W/g,"");
  var nospaces = nopunctuation.replace(/\s/g,"");
  var finalstring = nospaces;

  var len = finalstring.length;
  for ( var i = 0; i < Math.floor(len/2); i++ ) {
    if (finalstring[i] !== finalstring[len - 1 - i]) {
      returnfalse;
    }
  }
  returntrue;    
}