Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Pierre Pfennig
Pierre Pfennig
386 Points

I don't get any content "printed to the webpage". I can answer all questions, but in the end nothing appears.

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 html; 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>'; hmtl += buildList(wrong); print(html);

1 Answer

Steven Parker
Steven Parker
231,236 Points

In the second-to-last statement, you have "hmtl" instead of "html".

Tip: Learn to use the browser's DevTools, it can make finding errors like this easy.

Pierre Pfennig
Pierre Pfennig
386 Points

ohh I see. Thank you !

Yeah I really should. Thanks :)

Steven Parker
Steven Parker
231,236 Points

Pierre Pfennig — Glad to help. You can mark a question solved by choosing a "best answer".
And happy coding!