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

What am I doing wrong?

using string concatenation so that the final value of userName is "23188XTR#SMITH".

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

var userName = 'id' +'#' +lastName.toUpperCase();
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>JavaScript Basics</title>
<script src="app.js"></script>

1 Answer

Justin Iezzi
Justin Iezzi
18,199 Points

Right now your output looks like this - id#SMITH

You've written id out as a string, when you need to write it just like you did with lastName, including the toUpperCase() method. Hope this helps.

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