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JavaScript JavaScript Basics (Retired) Making Decisions with Conditional Statements Boolean Values

Sean Flanagan
Sean Flanagan
33,235 Points
Posted by Sean Flanagan
Sean Flanagan
33,235 Points

JavaScript won't work

Hi. My program won't work. Does anyone know why? Here's the JS:

var correctGuess = false;
var randomNumber = Math.floor(Math.random() * 6 ) + 1;
var guess = prompt('I am thinking of a number between 1 and 6. What is it?');
if (parseInt(guess) === randomNumber ) {
  correctGuess = true;
}
if ( correctGuess ) {
  document.write('<p>You guessed the number!</p>');
} else {
  document.write('<p>Sorry. The number was ' + randomNumber + '.</p>');
}

It doesn't prompt an answer. Thanks for any help offered.

Sean

2 Answers

Iain Diamond
Iain Diamond
29,379 Points
Iain Diamond
Iain Diamond
29,379 Points

Hi Sean,

Your JavaScript works perfectly fine in a browser. How are you running it?

I tested it by writing the following to a test.html file and opening it up in a browser:

<script>
var correctGuess = false;
var randomNumber = Math.floor(Math.random() * 6 ) + 1;
document.write('<p>The number is ' + randomNumber + '.</p>');
var guess = prompt('I am thinking of a number between 1 and 6. What is it?');
if (parseInt(guess) === randomNumber ) {
  correctGuess = true;
}
if ( correctGuess ) {
  document.write('<p>You guessed the number!</p>');
} else {
  document.write('<p>Sorry. The number was ' + randomNumber + '.</p>');
}
</script>
Sean Flanagan
Sean Flanagan
33,235 Points
Sean Flanagan
Sean Flanagan
33,235 Points

Hi Iain.

I've run it again and now it's working fine. Strange, but at least it's sorted.

Thanks and apologies

Sean