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

Jesse Fister
Jesse Fister
11,968 Points

unexpected end of input

Not sure what is wrong with my code as it matches Dave's code (from what I can see). When I open up the console it says "Syntax error: Unexpected input" on js line 1

Below is my actual code if anyone has a suggestion. Thanks!

var questions = [
  ['How many states are in the United States?', 50],
  ['How many continents are there?', 7],
  ['How many legs does an insect have?', 6]
];
var correctAnswers = 0;
var question;
var answer;
var response;
var correct = [];
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;
    correct.push(question);
  } else {
    wrong.push(question);
  } 
}

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

Hey Jesse Fister

To put code into a forum post use triple back ticks -- ``` β€” around the code. I fixed your code here, but in the future here's a forum discussion that describes how to add HTML, CSS, JavaScript or other code to the forum: https://teamtreehouse.com/forum/posting-code-to-the-forum

3 Answers

Dave McFarland
STAFF
Dave McFarland
Treehouse Teacher

HI Jesse Fister

The problem is with this function:

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

There is a missing closing bracket -- } -- at the end of the function. It should be this:

function buildList(arr) {
  var listHTML = '<ol>';
  for (var i = 0; i <arr.length; i +=1) {
    listHTML += '<li>' + arr[i] + '<li>';
  }
  listHTML += '</ol>';
  return listHTML;
}
Jack Choi
Jack Choi
11,420 Points

I'm not sure if it's a copied text issue but the formatting here is messed up:

for (var i = 0; i ' + arr[i] + '

'; }

I'm guessing it should be something like this?

for (var i = 0; i < arr.length; i++) {
  listHTML += arr[i] + "\n";
}
Jesse Fister
Jesse Fister
11,968 Points

Thanks Dave! Also, I'll be sure to add the code with the three back ticks moving forward when posting to the forum.