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

Micah Dunson
Micah Dunson
34,368 Points
Posted by Micah Dunson
Micah Dunson
34,368 Points

dont understand 'do and while..' in this example

the question is to convert from while to a do-while loop. here's the 'while' code:

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.");

Here's my answer:

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

Not sure what I'm doing wrong

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

Daniel Markham
Daniel Markham
10,976 Points
Daniel Markham
Daniel Markham
10,976 Points

Hi Micah,

You are doing a bit more work than you need to on this one. You need to have the script execute the same code within the "do" part, i.e. you only need to call your "secret" prompt variable within the "do" brackets. If the user answers the question correctly, then you write that they "know the password, welcome..", i.e. they bust out of the loop.. Below is what I got. Hopefully this helps.

Best,

Dan

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

} while (secret!='sesame');

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

            ```
Micah Dunson
Micah Dunson
34,368 Points
Micah Dunson
Micah Dunson
34,368 Points

Thank you Dan!! You've been a big help. I really appreciate it!

Grace Kelly
Grace Kelly
33,990 Points
Grace Kelly
Grace Kelly
33,990 Points

Hi micah, I changed your variables a bit e.g the name of the secret variable to password and changed it in the if condition and it works fine now :)

var secret;
var password = "sesame";
do {
    secret = prompt("what is the password");
    if (secret === password) {
    document.write("You know the password. Welcome!");
    }
} while ( !secret)
Micah Dunson
Micah Dunson
34,368 Points
Micah Dunson
Micah Dunson
34,368 Points

Thanks Grace! I knew I was making it harder than it was just couldn't figure out the issue. Makes total sense.