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 Tracking Multiple Items with Arrays Iterating through an Array

JORGE HERRANDO GARIJO
JORGE HERRANDO GARIJO
7,895 Points
Posted by JORGE HERRANDO GARIJO
JORGE HERRANDO GARIJO
7,895 Points

Any idea why is this simple code failing?

Hello! I came back to coding after almost a year and am a little bit rusty..

script.js 
var temperatures = [100,90,99,80,70,65,30,10];
  for (var i=0; i < temperatures.length; i+=) {
    console.log (temperatures[i]);
    }
index.html 
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript Loops</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

1 Answer

Dan Weru
Dan Weru
47,649 Points
Dan Weru
Dan Weru
47,649 Points

Hi, you have a slight syntax error in the for loop incrementor. It should be 

 temperatures.length; i++
// NOT
//  temperatures.length; i+=
JORGE HERRANDO GARIJO
JORGE HERRANDO GARIJO
7,895 Points
JORGE HERRANDO GARIJO
JORGE HERRANDO GARIJO
7,895 Points

Thanks for the info. But I tried both ways and any of them seems to be working ..