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 Wenhui (Sarah) Zhang
.a{fill-rule:evenodd;}techdegree
Wenhui (Sarah) Zhang
Full Stack JavaScript Techdegree Student 3,852 Points

Hi, I am having trouble with the third task of the array challenge.

I am having trouble adding more arrays to coordinates. I tried adding another coordinates.push(); function but it doesn't seem to be working. What am I doing wrong?

script.js 
var coordinates = [[]];
coordinates.unshift(["hello", "nihao",],["hello", "nihao",],["hello", "nihao",],["hello", "nihao",]);
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

Clayton Perszyk
MOD
Clayton Perszyk
Treehouse Moderator 48,850 Points
Clayton Perszyk
Clayton Perszyk
Treehouse Moderator 48,850 Points

You need to assign the populated array of arrays to coordinates and then add one array with two elements to that array, for a total of four arrays within the coordinates array.