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

Posted by Andrew Cauthorn
Andrew Cauthorn
8,846 Points

Code Challenge - JavaScript help

I'm having trouble passing this challenge. The Challenge is "Complete the assignment to the userName variable by adding a # symbol followed by an all uppercase version of the lastName variable. In other words, using string concatenation so that the final value of userName is "23188XTR#SMITH"."

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

var userName = id.toUpperCase("23188xtr" + "#smith");
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>

3 Answers

Robert Richey
Robert Richey
Courses Plus Student 16,352 Points

Hi Andrew,

This challenge is about string concatenation and calling the .toUpperCase() string method.

In Task 1 / 2

Assign an all uppercase version of the id variable to the userName variable.

The passing code should have looked similar to this:

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

var userName = id.toUpperCase();

userName now holds the string value "23188XTR".

In Task 2 / 2, we need to concatenate a # character, followed by another concatenation of lastName to uppercase. To concatenate two strings together, we essentially add them, with the plus sign.

var string1 = "Fish";
var string2 = "Taco";

var menuItem = string1 + string2;

// menuItem == "FishTaco";

Hope this helps,

Cheers

Robert Richey
Robert Richey
Courses Plus Student 16,352 Points

Perhaps another example to help,

var string1 = "chocolate";
var string2 = "milk";

var string3 = string1.toUpperCase() + '#' + string2.toUpperCase();

// string3 == "CHOCOLATE#MILK";
Andrew Cauthorn
Andrew Cauthorn
8,846 Points
Andrew Cauthorn
Andrew Cauthorn
8,846 Points

Thank you, Robert! That worked! I think I read through the question too fast.

Andrew Cauthorn
Andrew Cauthorn
8,846 Points
Andrew Cauthorn
Andrew Cauthorn
8,846 Points

Rather, through the challenge too fast.