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! While you're at it, check out some resources Treehouse students have shared here.

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

I've built a solid 'for loop.' Yet, it says I'm only logging it once. How do increase my code without += console.log?

//I built the for loop like this

for (i = 2; i <=24; i +=2) { console.log(i); }

The goal is to print even numbers 2 through 24. The error I'm given is that I'm only logging one number rather then several. What am missing??

script.js
for (i = 2; i <=24; i+=2); {
 console.log(i);
}
index.html
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript Loops</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

2 Answers

Your code shows a semicolon after the parenthesis in the for loop. Should be after the 2. As is the loop runs through all its iterations doing nothing because there is nothing specified to do between the parenthesis and the semicolon. Then it performs a single console log output after finishing the loop.

You're semi-colons in your for loop conditions when you should be using commas between each parameter and then nothing but a curly bracket after the last parenthesis:

for (i = 2, i <=24, i+=2) { console.log(i); }