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JavaScript JavaScript Loops, Arrays and Objects Tracking Multiple Items with Arrays Build a Quiz Challenge, Part 2 Solution

No idea what is wrong here

I tried to follow along with the solution of the quiz challenge video. I even stopped it several times to compare my code to the video. From what I can tell it is EXACTLY the same (except i shortened the questions at the top), but for whatever reason, it does not function properly (like in the video). I am going insane looking over the same code over and over not seeing the problem. Maybe someone else will see what I am missing ...

NOTE: found a few mistakes, now if i get all questions wrong it works properly, but if I answer a question correctly it stops the prompts and does not write anything to the document.... ??? so confused now

var questions = [
  ['How many US states?', 50],
  ['How many continents?', 7],
  ['Insect has how many legs?', 6]
var correctAnswers = 0;
var question;
var answer;
var response;
var corect = [];
var wrong = [];

function print(message) {
  var outputDiv = document.getElementById('output');
  outputDiv.innerHTML = message;

function buildList(arr) {
  var listHTML = '<ol>';
    for (var i = 0; i < arr.length; i += 1) {
      listHTML += '<li>' + arr[i] + '</li>';
    listHTML += '</ol>';
    return listHTML;

for (var i = 0; i < questions.length; i += 1) {
  question = questions[i][0];
  answer = questions[i][1];
  response = prompt(question);
  response = parseInt(response);
  if (response === answer) {
    correctAnswers += 1;
  } else {

html = "You got " + correctAnswers + " question(s) right."
html += '<h2>You got these questions correct:</h2>';
html += buildList(corect);
html += '<h2>You got these questions wrong:</h2>';
html += buildList(wrong);

3 Answers

Found it. TYPO. Isn't it always. If you look at a few places the word "correct" was typed "corect".

Jonathan Grieve
Jonathan Grieve
Treehouse Moderator 91,247 Points

Hi there Jamison,

I saw that too but I didnt flag it because I saw your variable was also put down as corect, so I didn't mention it.

Are you all sorted now? :-)

Jonathan Grieve
Jonathan Grieve
Treehouse Moderator 91,247 Points

Hi Jamison. Very good attempt on your code.

One or 2 of the lines in the html variable don't have a semi colon at the end of the statement, that would help.

But to be honest I don't see much wrong with it either, maybe someone has a keener eye than me. :)

I don't see where you have globally declared the var html so that will prevent the listing of the correct and incorrect answers.

You also could make your code a little cleaner by combining response = prompt(question); response = parseInt(response); into response = parseInt(prompt(question);

It's one less thing for the program to execute. Not such a big deal in such a tiny bit of code, but a good housekeeping habit that will pay off in large programs.