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

Marc Sirianni
Marc Sirianni
1,216 Points
Posted by Marc Sirianni
Marc Sirianni
1,216 Points

JavaScript Basics: combining strings

var id = "23188xtr"; var userName = id.toUpperCase(); var lastName = "Smith"; var userName = lastName.toUpperCase; userName + userName = "#";

app.js 
var id = "23188xtr";
var userName = id.toUpperCase();
var lastName = "Smith";
var userName = lastName.toUpperCase;
userName + userName = "#";
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

elk6
elk6
22,916 Points
elk6
elk6
22,916 Points

Hi Marc,

Try this:

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

var userName = id.toUpperCase() + "#" + lastName.toUpperCase();
Takehiro Mouri
Takehiro Mouri
1,461 Points
Takehiro Mouri
Takehiro Mouri
1,461 Points

Hi Marc,

You are initializing two userName variables, you can either use two different variable names or go with the solution Elian provided.

Cheers, Take