Array assignment

[storrisi]

I noticed a wrong assignment in the example you posted, in the getTree() function, which cause that the array passed to the getTree() function got modified after the assignment.

You should correct

item = data[0]

with

item = data.slice(0,1)[0],

and

item = data[i++];

with

var z = i++;
item = data.slice(z,z+1)[0];