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) Creating Reusable Code with Functions Passing an Argument to a Function

I don't understand this question.

challenge 2

function returnValue(x) {
return x;
var echo = x;


  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>JavaScript Basics</title>
<script src="script.js"></script>

2 Answers

Steven Parker
Steven Parker
229,005 Points

The challenge says to create the echo variable after the function.

It looks like you created it inside the function.

Also, it says to call your function using a string argument (a string would be enclosed in quotes). Then you would assign the result to your new variable.


Echo variable must be outside of function, like this:

function returnValue(x) {
  return x;

var echo = returnValue('What\'s up');

thanks a lot