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

thomas kaplan
thomas kaplan
1,509 Points
Posted by thomas kaplan
thomas kaplan
1,509 Points

having trouble completing this can someone show me the solution?

?

script.js 
var secret = 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>

2 Answers

Thomas Fildes
Thomas Fildes
22,687 Points
Thomas Fildes
Thomas Fildes
22,687 Points

Hi Thomas,

Basically you just have to switch round a couple of things in the code. It asks for a do/while loop which will better the code. All that needs to be done is to type do and then cut and paste the code block that currently runs after the while function. Then you can remove the prompt from the variable secret because you will be modifying it inside the do while loop. Here is the code below if you are unsure:

var secret;

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

Happy Coding!

Erik Nuber
Erik Nuber
20,629 Points
Erik Nuber
Erik Nuber
20,629 Points 
var secret = prompt("What is the secret password?");
while ( secret !== "sesame" ) {
  secret = prompt("What is the secret password?");    
}
document.write("You know the secret password. Welcome.");

you just need to reword it to fit a do while...

var secret;

do {

  secret = prompt("What is the secret password?");    

} while ( secret !== "sesame" ) 

document.write("You know the secret password. Welcome.");

The do while loop means whatever in the loop will happen at least one time. For this reason, we only need to declare the variable secret outside the loop but not actually do the prompt. This is because then the prompt would appear twice before the loop actually tried to see if secret = "seasame"