freeCodeCamp Challenge Guide: Title Case a Sentence

Is there someone who would be able to verify why this is happening? Moderators perhaps?

[spoiler]function titleCase(array) {
  var finalArray = '';
  var lowerC = array.toLowerCase().split(' ');
  for(var i = 0; i < lowerC.length; i++) {
     var newArray = lowerC[i].replace(/[a-zA-Z]/, function(s) {return s.toUpperCase(); });
     finalArray += newArray + " "; 
  }  
  return ('"' + finalArray.slice(0, -1) + '"');
}[/spoiler]

I have also uploaded my function. Used the same .slice(0, -1). Works on Chrome Developer Tools. Why not here? Curious…

Read full topic