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

shloimi Minkowicz
seal-mask
.a{fill-rule:evenodd;}techdegree
shloimi Minkowicz
Full Stack JavaScript Techdegree Student 1,202 Points

i don't understand

Could someone please help with this challenge, this makes absolutely no sense to me, and how do you add a # IT WAS NEVER IN THE VIDEO

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

var userName = id.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

Brendan Whiting
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Brendan Whiting
Front End Web Development Techdegree Graduate 84,735 Points

This is one way you could do it:

userName += "#" + lastName.toUpperCase();

The += operator will concatenate (add) what's on the right to the string. It's the same as saying username = userName +. Then I'm adding the "#" symbol, and the lastName in uppercase with the same method as before. Let me know if you have more questions.