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

Posted by Seth Pabst
Seth Pabst
10,285 Points

why wont this code work?

i don't see what im missing, i changed it to a do while loop.

script.js 
var secret;

do { 
 prompt("What is the secret password?");
}
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

Brian Jensen
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree seal-36
Brian Jensen
Treehouse Staff
Brian Jensen
.a{fill-rule:evenodd;}techdegree seal-36
Brian Jensen
Treehouse Staff

Unlike with a stand alone while loop, in a do/while loop the while piece does not take a code block. It only holds the conditional. The do portion runs the code block first, then the while portion checks the output of the code block against the condition.

So it would need to be written like this:

var secret;

do {
  secret = prompt("What is the secret password?");    
} while (secret !== "sesame")

document.write("You know the secret password. Welcome.");
Seth Pabst
Seth Pabst
10,285 Points

Thank you!