Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community!

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript JavaScript Loops, Arrays and Objects Simplify Repetitive Tasks with Loops Refactor Using a Loop

Javascript bug

  • This code should work, it will log all even numbers from 2 to 24, but it doesn't.
 var mod;
for(var count = 1; count<25; count++){
mod = count % 2;
  if(mod == 0){

<!DOCTYPE html>
  <meta charset="utf-8">
  <title>JavaScript Loops</title>
<script src="script.js"></script>

You're right, sorry for this simple mistake. :)

1 Answer

Change console.log(mod) to console.log(count). mod will always == 0 here base on your if condition. Ultimately your script is console logging 0 repeatedly (12 times to be exact in this case).

Also you'll want to declare var mod; outside of the loop so it's not re-declaring the var each time the loop runs.