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 amyp
amyp
6,574 Points

After your newly created returnValue function, create a new variable named echo. Set the value of echo to be the results

After your newly created returnValue function, create a new variable named echo. Set the value of echo to be the results from calling the returnValue function. When you call the returnValue function, make sure to pass in any string you'd like for the parameter.

The function will accept the string you pass to it and return it back (using the return statement). Then your echo variable will be set with what is returned, the results.

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

Christopher Collins
seal-mask
.a{fill-rule:evenodd;}techdegree
Christopher Collins
Front End Web Development Techdegree Student 6,343 Points
Christopher Collins
.a{fill-rule:evenodd;}techdegree
Christopher Collins
Front End Web Development Techdegree Student 6,343 Points

Hi Amrita,

This question is aimed at making sure we understand how parameters and arguments are passed in and between functions and the JS code. Below is the solution to the challenge:

function returnValue (drink) { return drink; }

var echo = returnValue('pepsi');

We can see that the function can accept one argument (drink), which it will then feed down into its internal code block for processing. As this particular function only returns the value directly, when we call the function below we can send it whatever answer we desire ('pepsi')/('orange juice')/('water')/('coffee').

Hope this helps!