一旦没有更多的结果，jQuery Ajax

Question

I'm building a simple quiz for a client that's getting it's data from their database and I'm loading the questions with a Ajax call to get the next question after they answer the first one. That is all functioning fine but the problem I've run into is what would be the best method to check if there are no more questions, currently I'm using success: to replace the content with the next question and error: to replace the content with the end of quiz screen. If anyone could give me some advice on a better method it would be very much appreciated as I don't really want to use error: as in case there's an actual error with the Ajax call it would just say the quiz is done when I would want the user to be able to try the action again, thanks in advance!

Answer 1

complete: function(data){
  if(data.length !== 0){
    // change question
  }else{
    // completed quiz
  }
}

then in your PHP, just return an empty json object when there are no further questions.