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JavaScript

Posted by Edward Kemp
Edward Kemp
6,682 Points

Creating Random Number - Javascript

So I'm a little stumped, I don't see anything wrong in my code.. I'm no getting any errors in the developer tool section when I run the application however, the application does run with the message but at the end where the number is supposed to be it just says NaN. So annoying, I bet it's a really simple fix to.. here is the code:

console.log("Start program"); var dieRoll = Math.floor( Math.round()* 6)+1; alert("Here is your random number " + dieRoll); console.log("End program");

1 Answer

Gunhoo Yoon
Gunhoo Yoon
5,027 Points

You are confusing random with round.

Math.floor(Math.random() * 6) + 1

Math.round is just variation of Math.floor.

**Further explanation

Since your Math.round() didn't take any argument it produces NaN which is Not a Number.

Any arithmetic operation followed by NaN produces NaN. So that's why you were getting NaN.

Edward Kemp
Edward Kemp
6,682 Points

lol I can't believe I didn't spot that, thank you!

Gunhoo Yoon
Gunhoo Yoon
5,027 Points

I didn't even know until I typed your code. Psychology is funny

Edward Kemp
Edward Kemp
6,682 Points

How did you get that text editor screenshot in the comment section?? I've been trying to figure that out.

Gunhoo Yoon
Gunhoo Yoon
5,027 Points

It is actually built in comment box.

wrap your code with three backticks (```) you can give arguments such as JavaScript, Python etc... or file name then that file name will appear.

Look for markdown cheatsheet below the comment box