Add array to two-dimensional array

Question

Array A is a two dimensional array. It's made up of array X and Y. I'd like to add array Z to Array A as another item in Array A. How do I do this?

Edited to add code:

arrayA = new Array(
    [1, 2, 3] //array x
    [4, 5, 6] //array y
    );

arrayZ = new Array(7, 8, 9);

//now, how do I add arrayZ onto the end of arrayA?

Answer 1

This will add it to the end of arrayA

arrayA.push(arrayZ);

Here's a reference for push: https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/push