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<!DOCTYPE html>
<html lang="en-us">

<meta charset="utf-8" />
<title>Roll to Hit!</title>
<meta name="description" content="Roll to Hit! - Version 0.5" />
<meta name="author" content="Carson Beck" />
<meta name="dcterms.rights" content="" />

<!-- start of visible page -->

    <p id="prompt">Roll the to hit the evil Ogre!</p>
    <input type="button" value="Roll" onclick="RolltoHit();" />

    <!-- JavaScript code placed at end of <body> element -->

    function RolltoHit() {
      var randomNumber = Math.floor((Math.random() * 20) + 1);

      if (randomNumber.value >= 10) {
        document.getElementById("prompt").innerHTML = randomNumber + " You hit!";
      } else if (randomNumber.value <= 9) {
        document.getElementById("prompt").innerHTML = randomNumber + " You miss the Ogre!";
      } else if (randomNumber.value == 20) {
        document.getElementById("prompt").innerHTML = "Natural 20! The beast is slain!";
      } else if (randomNumber.value == 1) {
        document.getElementById("prompt").innerHTML = "Natural 1! You dropped your sword!";




What I have tried:

When I run the HTML it won't change the prompt at the top to the values I have defined. I'm not sure what's wrong, the console doesn't show any issues with the code.
Updated 12-Jul-21 12:15pm
Richard Deeming 13-Jul-21 5:32am    
Your if tests make no sense:

* If the number is greater than or equal to 10, "You hit!" - OK;
* If the number is less than or equal to 9, "You miss the Ogre!" - OK;
* If the number is equal to 20, then it is also greater than 10 - this branch can never be reached;
* If the number is equal to 1, then it is also less than 9 - this branch can also never be reached;
Carson Beck 13-Jul-21 23:01pm    
That's what I thought, so how should I go about setting that up?
Richard Deeming 14-Jul-21 3:35am    
Move the unreachable branches before the others:
* If the number is equal to 1 ...;
* Else if the number is equal to 20 ...;
* Else if the number is greater than 10 ...;
* Else (if the number is less than or equal to 9 - this test is not required, since any other value is handled by the previous branch) ...;

1 solution

Remove the ".value" from the randomNumber checks. randomNumber is already the value.
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