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 Jordan Winters
.a{fill-rule:evenodd;}techdegree
Jordan Winters
Front End Web Development Techdegree Student 10,360 Points

Not Sure

Not really sure how to do this.

script.js 
var coordinates = [
 [2, 3],
 [2, 12],
 [7, 10],
 [4, 5],
];
index.html 
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript Objects</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

2 Answers

Thomas Fildes
Thomas Fildes
22,687 Points
Thomas Fildes
Thomas Fildes
22,687 Points

Hi Jordan,

I have copied and pasted your code into task 3 and it let me pass the challenge... If it will not let you pass, delete the comma that follows the last array inside your main array. Please see code below for reference:

var coordinates = [
 [2, 3],
 [2, 12],
 [7, 10],
 [4, 5]  // Deleted the comma that followed this array
];

Hope this helps! Happy Coding!!!

Christopher Debove
PLUS
Christopher Debove
Courses Plus Student 18,373 Points
Christopher Debove
Christopher Debove
Courses Plus Student 18,373 Points

Well normally it's complete valid code to let a comma at the end... Javascript don't mind normally. But syntactically speaking it's wrong.