Fool Palindromes

JavaScript
1

i’m little curious

what’s wrong here, if i want to solve like this way? please mention points and describe.

Your code so far

function palindrome(str) {
  // Good luck!
  var splitArray = str.split('');
  var reverseArray = splitArray.reverse();
  var joined = reverseArray.join('');
   
  if (joined == str) {
    return "true";
  }
  else {
    return "false";
  }
  return joined;
}

palindrome("eye");

Your browser information:

Your Browser User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36.

Link to the challenge:
https://www.freecodecamp.org/challenges/check-for-palindromes

3

Thank you @camperextraordinaire.
#1 & #2 is clear to me now but what have you meant @ #3?