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

Challenge 2: Combining strings and methods

Having issues figuring out what seems to be really easy. Challenge #2 is asking me to add a # symbol along with last name towards the end of string in var userName.

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

Steven Parker
Steven Parker
229,644 Points

You can concatenate strings (stick them together) using the "+" operator.

Matthew Long
Matthew Long
28,407 Points

A lot of people have trouble with this one. The challenge wants you to concatenate the strings together (adding them using the + operator). You will add the string "#" and the uppercase lastName string to userName.