Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

JavaScript JavaScript Loops, Arrays and Objects Simplify Repetitive Tasks with Loops What are Loops?

In layman's terms, what is the difference between "randomNum" and "randomNumber"?

At first, my code wouldn't preview because for some reason I wanted to deviate from instruction and use "randomNumber" consistently. I now appreciate that they are different but I'd like to learn more from this experience, drawing insight from wiser minds. Any feedback would be appreciated by this newbie! Thanks!

1 Answer

Kieran Barker
Kieran Barker
15,004 Points

Given the following code:

function randomNumber(upper) {
  return Math.floor(Math.random() * upper) + 1;

var counter = 0;
while (counter < 10) {
  var randNum = randomNumber(6);
  document.write(randNum + ' ');
  counter += 1;

randomNumber is the name of a function. What you're doing with randNum is calling the function, passing the value 6 into it, and storing the result of this operation into the variable called randNum. The variable could be called anything! The name randNum isn't special; it's just suitable given what we're storing inside it. Does this make any sense?

Absolutely! Thank you! I’m working full-time and in the midst of a coding camp, so sometimes I have a serious case of the brainfarts. ?

Thank you!