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

Fidel Zv
Fidel Zv
1,625 Points

Can someone help me on this challenge task I am stuck and have no idea on what to do next

I typed in id.toUppercase but that did not work can someone help me on this?

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

var userName
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

You were very close, toUpperCase is a method, so don't forget to add the () add the end:

var userName = id.toUpperCase()

Further info

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase

Steven Parker
Steven Parker
231,268 Points

The included code doesn't show what you tried, but based on your description I'd guess:

  • you may have spelled "toUppercase" (with lower-case "c") instead of "toUpperCase" (with capital "C")
  • you may have forgotten the parentheses after the method name ("id.toUppercase()")