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

Posted by James Rennie
James Rennie
16,807 Points

How do I record return value in var?

I don't understand how to return a value to a var inside a function using an argument?

function returnValue( test ) { var echo = test; return test; }

//var echo = test; //returnValue("yum");

script.js 
function returnValue( test ) {
 var echo = test;
 return test; 
}

//var echo = test;
//returnValue("yum");
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
231,236 Points
Steven Parker
Steven Parker
231,236 Points

The task 2 code should be placed after the function.

It looks like you created the echo variable inside the function instead of after it.

But your code in quotes at the bottom is almost what you need for task 2. Just combine those lines into one and you should have it:

var echo = returnValue("yum");  // the value returned by the function is assigned to "echo"
James Rennie
James Rennie
16,807 Points

Thanks for your help.