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 Jordan
Sean Jordan
1,876 Points
Posted by Sean Jordan
Sean Jordan
1,876 Points

Finally, add a # symbol and lastName in uppercase to the end of the userName string. The final value of userName is "231

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

var userName
var userName = id;
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>

1 Answer

Steven Parker
Steven Parker
229,744 Points
Steven Parker
Steven Parker
229,744 Points

You're getting close, but there's a few issues to fix:

  • you should only declare a variable once, the first two lines with "userName" in them can be removed
  • you have "toUppercase" (with a little "c") instead of "toUpperCase" (with capital "C")
  • when calling a function or method, there must be parentheses after the function name
  • there should not be a semicolon in the middle of the line (only at the end)
  • you need to add a "#" symbol between the upper-cased id and lastName