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 Quickstart Functions Write a Function

Posted by Robert Mavisakalyan
Robert Mavisakalyan
Courses Plus Student 4,269 Points

Finally, call the add10 function and pass it one number value as the argument.

I cant understand what am i doing wrong ..

script.js 
function add10(num) {
return num + 10;
}
function add10(1);
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

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there, Robert Mavisakalyan ! You're doing terrific! You definitely seem to understand parameters and return statements so kudos! However, we only use the keyword function when we are defining the function. To call the function, we simply say the name, give a set of parentheses, and then put any arguments we need in the parentheses.

Removing the word function from the last line of your code will cause this to pass all steps.

Hope this helps! :sparkles:

Robert Mavisakalyan
Robert Mavisakalyan
Courses Plus Student 4,269 Points

Thank you ! that was very helpful )