JavsScript (while and do-while loops)

Question

Hi all, 
I just started learning JavaScript, but I am really struggling to understand the concept. I have spend days to understand do-while loop, and still trying everyday to understand the concept. 
I have been trying to sole this challenge with no success: 
// Display the prompt dialogue while the value assigned to secret is not equal to "sesame"
let secret = prompt("What is the secret password?");
do {
let secret = prompt("What is the secret password?");
}
while ('' );
// This should run after the loop is done executing
alert("You know the secret password. Welcome!");
Here is my answer:
// Display the prompt dialogue while the value assigned to secret is not equal to "sesame"
let secret = prompt("What is the secret password?");
do {
console.log(secret);
}
while('secret' !== 'sesame')
// This should run after the loop is done executing
alert("You know the secret password. Welcome!");

Byron Injeeli · Answer

Hi Lina. In order to check if the user entered the correct password, you can use an if statement in the while loop like this:
While loop
```javascript
let input;
while (input !== 'sesame') {
  input = prompt('What is the secret password?')
  if (input === 'sesame') {
    console.log('You know the password, welcome.');
    break;
  }
}

**Do-while loop**
javascript
let input;
do {
  input = prompt('What is the secret password?')
  if (input === 'sesame') {
    console.log('You know the password, welcome.');
    break;
  }
} while (input !== 'sesame');
```

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Lina John

Lina John

JavsScript (while and do-while loops)

1 Answer

Byron Injeeli

Byron Injeeli