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

sean farrelly
sean farrelly
1,614 Points
Posted by sean farrelly
sean farrelly
1,614 Points

assign an all uppercase version of the id variable to the username variable.

assign an all uppercase version of the id variable to the username variable

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

var userName
var userName= id.touppercase();
userName += "#" + 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

Erik Nuber
Erik Nuber
20,629 Points
Erik Nuber
Erik Nuber
20,629 Points

you need to camel case it.

toUpperCase()

so would be

var userName = id.toUpperCase();
Benjamin Barslev Nielsen
Benjamin Barslev Nielsen
18,958 Points
Benjamin Barslev Nielsen
Benjamin Barslev Nielsen
18,958 Points

You almost have it, but JavaScript is case-sensitive, so you need to change touppercase to toUpperCase.