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

Alba Vrapi
Alba Vrapi
2,341 Points

Finally, add a # symbol and lastName in uppercase to the end of the userName string. The final value of userName is "231

How I can solve this exercise

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

var userName = id.toUpperCase()+ #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

Em Har
Em Har
9,775 Points

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

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

Steven Parker
Steven Parker
231,275 Points

:warning: The "toUpperCase" method does not take an argument, the parentheses should be empty in both cases.
Also, Treehouse discourages posting of explicit solutions without explanation. If they see it, it may be redacted.

First take the var id that has been set to uppercase and use concatenation to add the # symbol, then concatenation again to add the var lastName in uppercase. so.. userName += "#" + lastName.toUpperCase();

Your answer wasn't correct because you didn't use concatenation to add the symbol and last name to the id variable correctly.

Steven Parker
Steven Parker
231,275 Points

It turns out this particular challenge is pretty tolerant and the solution shown does pass, even with the erroneous argument in it. Most challenges are much more picky.

Alba Vrapi
Alba Vrapi
2,341 Points

Done , thank you :)