Quadtree in javascript

Question

I have been working in jQuery and I was given this code for a quadtree in javascript:

map = array(
    array(array(1,2,3,4), array(1,2,3,4), array(1,2,3,4), array(1,2,3,4)),
    array(array(1,2,3,4), array(1,2,3,4), array(1,2,3,4), array(1,2,3,4)),
    array(array(1,2,3,4), array(1,2,3,4), array(1,2,3,4), array(1,2,3,4)),
    array(array(1,2,3,4), array(1,2,3,4), array(1,2,3,4), array(1,2,3,4))
);

map[0][3][3] = "END OF ARRAY 1";
map[1][3][3] = "END OF ARRAY 2";

However this just looks like a 3d array to me, am I being stupid? ^.^

Answer 1

Since all nodes have exactly four children it is a quadtree. It is also a 3D array, since it is three levels deep.