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) Making Decisions with Conditional Statements Add a Final Else Clause

Posted by Qasim Rashad
.a{fill-rule:evenodd;}techdegree
Qasim Rashad
Front End Web Development Techdegree Student 7,837 Points

help with question

it says error but can't spot the error, did I do it right?

script.js 
var isAdmin = false;
var isStudent = false;

if ( isAdmin ) {
    alert('Welcome administrator');
} else if (isStudent) {
    alert('Welcome student');
}
else ( isAdmin) {
  alert ('Who are you?'); 
}
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
231,271 Points
Steven Parker
Steven Parker
231,271 Points

A final "else" statement does not take a conditional expression (it will not have anything following it in parentheses).

It doesn't need one since it handles all cases not covered by the previous "if" chain.

Qasim Rashad
.a{fill-rule:evenodd;}techdegree
Qasim Rashad
Front End Web Development Techdegree Student 7,837 Points

Thank you for the helpful tip, I’ve figured it out.