Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

JavaScript JavaScript Basics (Retired) Making Decisions with Conditional Statements Add a Final Else Clause

Kevin Jiang
Kevin Jiang
10,095 Points

cant seem to get the and correct

if isAdmin and isStudent false create and alert that says "Who are you?"

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

if ( isAdmin ) {
    alert('Welcome administrator')
} else if (isStudent) {
    alert('Welcome student')
} else (isAdmin+isStudent===false) {
  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>

3 Answers

var isAdmin = false;
var isStudent = false;

if ( isAdmin ) {
    alert('Welcome administrator')
} else if (isStudent) {
    alert('Welcome student')
} else {
  alert("Who are you?") 
}

cause you already checked t isAdmin true first, if he pass it it means false, then you checked isStudent, if false he s gonna pass it too, so the last else, certainely would mean if they are both not true !

There are two things going on here. FIrst, to test two things, you can't write it like else (isAdmin+isStudent===false) You have to test them separately. write (isAdmin === false && isStudent === false)

Second, when you have a final else clause, you don't need to include a parameter, it just runs that code if all the other tests fail.