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 Basics (Retired) Working With Numbers Doing Math

Devon Taylor
Devon Taylor
4,574 Points

Im trying to figure out whats missing? Please Help

I keep getting an error no matter which way I reset the code.

script.js
var salesTotal;
var retailPrice;
var quantity;
var salesTotal = retailPrice * quantity;
index.html
<!DOCTYPE HTML>
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>JavaScript Basics</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

1 Answer

Trevor Johnson
Trevor Johnson
14,427 Points

Hey Devon, It looks like the variables that are declared don't have any values. When I checked the challenge it already had the values for each variable in there. Here is what my code looked like to pass the first part of the challenge. We have the same solution, but it isn't multiplying anything because the variables don't have anything in them.

var wholesalePrice = 5.45;
var retailPrice = 9.99;
var quantity = 47;

var salesTotal = retailPrice * quantity;
Devon Taylor
Devon Taylor
4,574 Points

Oh wow, thank you so much Trevor. Somehow none of the values were showing, so this is what threw me off.