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 Create a Two Dimensional Array

Posted by Quadria Freeman
.a{fill-rule:evenodd;}techdegree seal-36
Quadria Freeman
Full Stack JavaScript Techdegree Graduate 15,680 Points

Confused

It keep asking me to Make sure you declare the coordinates array with the var keyword. not sure what I'm doing wrong and what that means

script.js 
var coordinates = [ [1,2], [2,3], [3,4], [9,10] ];
var coordinates = [ [1,2], [2,3], [3,4], [9,10] ];
index.html 
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript Objects</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

1 Answer

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

A variable can only be declared once, but you have two of the same code lines!

Delete either duplicate and you will pass the challenge.