Array Join Function Not Working

for some reason Im not able to see why my array join method wont work. here's the quick code for review: function rot13(str) { // LBH QVQ VG! var strAry = str.split(''); var t

Solution 1:

You don't save the result returned of .join()

transformed = transformed.join('');

or

return transformed.join('');

Solution 2:

Replace this it will work

functionrot13(str) { 
// LBH QVQ VG!var strAry = str.split('');

  var transformed = strAry.map(function(val){

    if(val === " ") return" ";
    else{
      var code = val.charCodeAt(0);
      returnString.fromCharCode(code-13);
    }
  });
  transformed = transformed.join('');
 console.log(transformed);
  return transformed;
}

jsfiddle link