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

Posted by verawat posriya
verawat posriya
9,706 Points

excuse me, do ... while... loop why I can't pass check work

this is my code

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

script.js 
var secret = prompt("What is the secret password?");
do {
  secret = prompt("What is the secret password?");    
}while ( secret === "sesame")
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>

3 Answers

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

You should only have one prompt statement (the one inside the loop). The top line should just be a variable declaration.

You'll also need to change the comparsion in the while statement. You want the loop to continue while the input is not the correct word.

Prateek Jain
PLUS
Prateek Jain
Courses Plus Student 1,797 Points
Prateek Jain
Prateek Jain
Courses Plus Student 1,797 Points

Hi,

a Do..While Loop works very similar to a while loop, just that it executes before checking the looping condition.

In your case, you are checking the condition whether secret is equal to sesame. Therefore, if that condition holds true, the loop will loop again.

What you do need to do is check whether secret is != sesame, and if that condition holds true ask for the password again.

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

Hope this helps.

Prateek Jain
Prateek Jain
Courses Plus Student 1,797 Points
Prateek Jain
Prateek Jain
Courses Plus Student 1,797 Points

And of course, as Steven mentioned, since you are using a do while loop. You only need to declare the variable secret and prompt for a password inside the loop.

verawat posriya
verawat posriya
9,706 Points
verawat posriya
verawat posriya
9,706 Points

thank you both I got it