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) Storing and Tracking Information with Variables Using String Methods

var id = "23188xtr"; var lastName = "Smith"; var userName = id.toUpperCase() + "#" + lastName.toUppreCase();

var id = "23188xtr"; var lastName = "Smith";

var userName = id.toUpperCase() + "#" + lastName.toUppreCase();

app.js
var id = "23188xtr";
var lastName = "Smith";

var userName = id.toUpperCase() + "#" + lastName.toUppreCase();
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="app.js"></script>
</body>
</html>

1 Answer

Isaiah Marin
Isaiah Marin
11,971 Points

The error is because you misspelled the .toUpperCase() in the line

var userName = id.toUpperCase() + "#" + lastName.toUppreCase();