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 Lenora Tracey Amadi
Lenora Tracey Amadi
2,041 Points

add a # symbol and lastName in uppercase to the end of the userName string. final value of userName is "231 " I m lost

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

1 Answer

Alexander Besse
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Alexander Besse
Full Stack JavaScript Techdegree Graduate 35,115 Points
Alexander Besse
.a{fill-rule:evenodd;}techdegree seal-36
Alexander Besse
Full Stack JavaScript Techdegree Graduate 35,115 Points

Hey, Lenora Tracey Amadi.

The challenge is looking for the following line to append #SMITH to the end of id.toUpperCase():

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

In the real world, you probably wouldn't write it that way especially when the strings start to get long. This is how I would have written it more practically with String Literals:

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

You can read more about string literals here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals

Happy coding.

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

This challenge doesn't accept template strings. But if it did, you could write it even more compactly this way:

var userName = `${id}#${lastName}`.toUpperCase();
Lenora Tracey Amadi
Lenora Tracey Amadi
2,041 Points

it worked . thank you..