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JavaScript JavaScript Loops Simplify Repetitive Tasks with Loops Create a do...while loop

Posted by sarahmoore4
sarahmoore4
6,980 Points

I'm super stuck and I have no idea what to do!!! I would love to see someone's code with this

script.js 
// Display the prompt dialogue while the value assigned to `secret` is not equal to "sesame"
let secret = prompt("What is the secret password?");

// This should run after the loop is done executing
alert("You know the secret password. Welcome!");

do {
  secret !== "sesame";
} while (secret === "sesame")

2 Answers

Cameron Childres
Cameron Childres
11,820 Points
Cameron Childres
Cameron Childres
11,820 Points

Hey Sarah~

First I'll add some comments to your code to detail what it's doing, then I'll show you my solution. 

// Shows a prompt for the password and sets variable `secret` to the user supplied value
let secret = prompt("What is the secret password?");

// Shows an alert that they know the password
alert("You know the secret password. Welcome!");

// Runs the code inside do{} once, then continues to run as long as secret is 'sesame'
do {
  secret !== "sesame";
} while (secret === "sesame")

Notice that no matter what the user sets "secret" to, the alert will always show. Following that the code inside of do{} is comparing "secret" to the password, but doesn't actually DO anything. Keep your comparisons inside of while() and put the code you want to run inside of do{}.

Here is my solution:

// Declare `secret` variable in global scope so the do...while function has something to set
let secret;

// Shows a prompt for the password once and sets variable `secret` to the user supplied value.
// Then checks if `secret` is NOT exactly the same as "sesame". If `secret` does not match, restart loop.
// If `secret` DOES match, while() evaluates as false, and the loop will end.
do {
  secret = prompt("What is the secret password?");
} while (secret !=='sesame')

// Shows an alert that they know the password. Runs only after the do...while has ended.
alert("You know the secret password. Welcome!");

Let me know if you have any questions :)

sarahmoore4
sarahmoore4
6,980 Points

Thanks so much this really cleared up a bunch for me I really appreciate the insight and help!

Rupert Travers
Rupert Travers
4,652 Points
Rupert Travers
Rupert Travers
4,652 Points

Excellent, that was a little 'loopy' to get one's head around, thanks for sharing!