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

Erin Agobert
Erin Agobert
4,781 Points

I don't understand step 2 of this question. Where should I put the variable "echo"?

Here is the code I used:

function returnValue(number) { var value = number; return value; }

returnValue(3); var echo = returnValue();

script.js
function returnValue(number) {
  var value =  number;
  return value;
}

returnValue(3);
var echo = returnValue();
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="script.js"></script>
</body>
</html>

1 Answer

Steven Parker
Steven Parker
229,968 Points

You have it in the right place, but you forgot to pass an argument to your function when you called it.

The line that calls the function but doesn't assign or otherwise use the returned value is not needed and can be removed.