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

I don't get it

How come task one is not passing?

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

var userName = id.toUpperCase + '#' + lastName.toUpperCase();
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>

2 Answers

Steven Ang
Steven Ang
41,751 Points

You forgot a set of parentheses after id.toUpperCase. All methods need a set of parentheses in order to work whether they take an argument or not.

Your code:

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

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

The correct code:

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

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