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

Thomas Arends
Thomas Arends
7,495 Points

Where do I put the variable?

I don't understand the challenge properly I think. Wherever i put my variable it'll always be undefined.

script.js
function returnValue (argument){
  return argument;
}

returnValue("My argument")
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

William Li
PLUS
William Li
Courses Plus Student 26,868 Points

You got it mostly right, except that you missed a step here.

Store the results of the function in a variable named echo.

// assign the return value of the function call to variable echo
var echo = returnValue("My argument");