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'm confused as to which is the argument and the parameter.

.

script.js
function returnValue(echo) {
  var echo = returnValue;
  return echo + "fast";
}
console.log(returnValue(echo)) ;
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

Hi Max,

You are very close. You really just need to separate the variable from the function to complete the challenge. Try placing the var echo outside of returnValue function and you are basically there. Then, simplify your code to return the string echo and you are done. Your code should look something like this:

function returnValue(echo) {
  return echo;
}

var echo = returnValue('echo');

Cheers!