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

Joshua Wolfe
Joshua Wolfe
1,897 Points

Help on JavaScript Basics Challenge

The directions below confuse me. Where is the end of the string?

(Finally, add a # symbol and lastName in uppercase to the end of the userName string. The final value of userName is "23188XTR#SMITH".)

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

var userName = id.toUpperCase('#lastName') + #lastname;
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>JavaScript Basics</title>
<script src="app.js"></script>
Brian Ball
.a{fill-rule:evenodd;}techdegree seal-36
Brian Ball
Treehouse Project Reviewer

Hi Joshua,

You're are on the right track by assigning the string method .toUpperCase to id. You also should pass the lastName variable as a parameter for the string method.

This way you are assigning an all uppercase version of the id variable to the userName variable.

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

var userName = id.toUpperCase(lastName)

1 Answer

One way to add the '#' symbol in between the id and lastName is to separate the two:

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

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

Another way is to use template literals:

var userName = `${id.toUpperCase()}#${lastName.toUpperCase()}`;