Question

I start out with an array of strings where each element of the array is separated by “//”. e.g. temp[0] = {"sky//hi//pi"} , temp[1] = {"fish//steak//carrot"}. Now my code looks like this:

for (var i = 0; i < temp.length ;i++)
{
window.data_arrays = Array(2);
window.data_arrays[i] = temp[i].split("//");
}

What I’m trying to do is to make data_arrays into a 2 dimensional array…so for the example it would be like temp[0][0] = "sky", temp[0][1] = "hi", temp[1][0] = "fish".

However the code doesn’t work. Can someone please help me out?
Thanks. (reason why I’m assigning it to window is because I need to access this variable in another file later)

Answer 1

Assuming your temp array is correct, you have to initialize the array before the loop:

window.data_arrays = [];
for (var i = 0; i < temp.length; i++) {
     window.data_arrays[i] = temp[i].split("//");
}

Otherwise you overwrite it on every iteration and it will only contain the values of the last iteration.

DEMO