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 trialEwan McDonnell
1,646 PointsI keep getting an message saying "make sure you declare the coordinates array". I've declared it using var coordinates.
I've tried a number of variants. This is my latest attempt at this exercise, to create a two-dimensional array:
var array1 = []; var array2 = [];
var coordinates = array1.concat(array2);
var array1 = [];
var array2 = [];
var coordinates = array1.concat(array2);
<!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
231,275 PointsI'm not sure what task you are on, but here's what you should create for each of them:
- for task 1, "coordinates" should be an empty array
- for task 2, coordinates" should have another arrays inside it — and the inner one should have 2 items
- for task 3, coordinates" should have 4 other arrays in it — and each of those should have 2 items
Also, I don't think the challenge is expecting any other variables to be created. Try full fulling the requirements of each step by using array literal(s) in the assignment.