javascript - Multi dimensional array Uncaught TypeError: Cannot set property '0' of undefined

Question

I am creating 3 dimensional array but something goes wrong

var bucket =[0];
var choose = [[],[]];
var x = 0;
$.each($('.bucket'), function() {
    bucket[x] = [choose[0], []];
    for (var i=0; i<$(this).find('.choose').length; i++) {
        choose[i][0] = $(this).find('.serie').val();
        choose[i][1] = $(this).find('.quantity').val();
        choose[i][2] = $(this).find('.type').val();
        choose[i][3] = $(this).find('.totali').val();
    }; // end for
    x++;
}); // end each buckets
console.log(choose);

and console says:

Uncaught TypeError: Cannot set property '0' of undefined

What's wrong?

Answer 1

The variable bucket hasn't been initialized and you're trying to access position x=0. Use var bucket = []; before accessing to position 0.