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JavaScript JavaScript Basics (Retired) Working With Numbers The Random Challenge Solution

marie king
marie king
1,172 Points
Posted by marie king
marie king
1,172 Points

For some reason I'm getting NaN as my number. I'm not sure why when I'm typing in integers for my test number.

I copied him basically because I had no idea how to do it.

var input = prompt('Please type a number');
var topNumber = parseInt(input);
var randomNumber = Math.floor(Math.random * topNumber) + 1;
var message = '<p>' + randomNumber + ' is a number between 1 and ' + topNumber + '</p>';
document.write(message);

MOD: I just updated the question to format the code to make it more legible. See the Markdown Cheatsheet for how to do this. Thanks!

1 Answer

Tabatha Trahan
Tabatha Trahan
21,422 Points
Tabatha Trahan
Tabatha Trahan
21,422 Points

It looks like the issue might be with how you called the Math.random function. Add the opening and closing parentheses and try it again. Your var randomNumber declaration would look like this:

var randomNumber = Math.floor(Math.random() * topNumber) + 1;

When you call a function, just remember to include the parentheses. Some functions will take arguments, like the Math.floor, and some don't, like Math.random. I hope this helps.