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

Curtis Simonson
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Curtis Simonson
UX Design Techdegree Graduate 13,791 Points
Posted by Curtis Simonson
.a{fill-rule:evenodd;}techdegree seal-36
Curtis Simonson
UX Design Techdegree Graduate 13,791 Points

Passing an Argument to a function: Part 2

This is from Javascript basics section. I don't know what to do. Here are the directions. "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("happy"){
  var attitude = "I am " + mood;
  return mood;
}

/*var echo = function returnValue();
function 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>

2 Answers

Thayer Y
Thayer Y
29,789 Points
Thayer Y
Thayer Y
29,789 Points

maybe you would like to try this if you still didn't get Steven hint

function returnValue(a) {
    return a;
}

var echo = returnValue("Hello");
Steven Parker
Steven Parker
229,732 Points
Steven Parker
Steven Parker
229,732 Points

You got a bit too fancy here. But here's some hints:

  • the simple function you create in task 1 will not be modified in task 2
  • in task 2 you will call the function from code you write after it
  • when you call a previously defined function, you don't use the word "function" again
  • to pass an argument to a function, you put it inside the parentheses that follow the name

I'll bet you can get it now without an explicit spoiler.