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

Kevin Jiang
Kevin Jiang
10,095 Points
Posted by 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

Ayoub AIT IKEN
Ayoub AIT IKEN
12,314 Points 
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 !

Brian Romine
Brian Romine
9,518 Points
Brian Romine
Brian Romine
9,518 Points

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.