هرمش - محرر الكود

var a = [
    [1, 2, 3],
    [4, 5, 6, 7, 8],
    [9, 10, 11, 12],
    [13, 14]
];

var totalElements = 0;

for (var i=0; i<a.length; i++)
{
    totalElements = totalElements + a[i].length;
}

write("Total number of elements = "  + totalElements);