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JavaScript JavaScript Basics (Retired) Storing and Tracking Information with Variables Using String Methods

Posted by eugene park
eugene park
4,188 Points

how to use concatenation with toUpperCase

syntax in line 4 doesnt work for the challenge

app.js 
var id = "23188xtr";
var lastName = "Smith";
id.toUpperCase();
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>

2 Answers

jcorum
jcorum
71,830 Points
jcorum
jcorum
71,830 Points

So close!! It doesn't like the lack of a space between the + and lastName:

You have:

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

It will accept 

var userName = id.toUpperCase() + '#' + lastName.toUpperCase();
Rich Donnellan
MOD
Rich Donnellan
Treehouse Moderator 27,696 Points
Rich Donnellan
Rich Donnellan
Treehouse Moderator 27,696 Points

Hey Eugene,

Try doing a search before asking any questions. This as well as others have been discussed a zillion times already.

To add to jcorum's answer — it's more DRY (Don't Repeat Yourself) to code it this way:

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