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 Loops, Arrays and Objects Simplify Repetitive Tasks with Loops Create a `do...while` loop

Martin Bornman
PLUS
Martin Bornman
Courses Plus Student 12,662 Points
Posted by Martin Bornman
Martin Bornman
Courses Plus Student 12,662 Points

do while loop

I am stuck with the do while loop.Need help please???

script.js 
var secret = prompt("What is the secret password?");
var password = false;
do {

  password = true;
}
while ( secret !== "sesame" ) {
  secret = prompt("What is the secret password?");    
}
document.write("You know the secret password. Welcome.");
index.html 
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript Loops</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

1 Answer

Tobias Helmrich
Tobias Helmrich
31,603 Points
Tobias Helmrich
Tobias Helmrich
31,603 Points

Hey Martin,

in the do-while loop the while doesn't have a body. You're just writing the condition after the while in this case and the code goes into the body of the do. You also don't need a variable with a boolean value of true or false because you're checking whether the password is correct or not in the while.

So if you remove your password variable and move the code from inside the while body inside of the do body it should work.

Like so:

var secret = ""
do {
  secret = prompt("What is the secret password?");    
} while ( secret !== "sesame" )
document.write("You know the secret password. Welcome.");

And also note that you shouldn't prompt the user outside of the loop as it will be overwritten in the do-while loop and the user will be prompted two times in the beginning.

I hope that helps! :)