هرمش - محرر الكود

var matrix = [
    [1, 2, 3],
    [4, 5, 6],
    [7, 8, 9]
];

var SOD = 0;
var SAD = 0;
var SUD = 0;


for (var i=0; i<matrix.length; i++)
{
    for (var j=0; j<matrix[i].length; j++)
    {
        if (i == j)
		{
			SOD = SOD + matrix[i][j];
		}
		else if (i < j)
		{
			SAD = SAD + matrix[i][j];
		}
		else if (i > j)
		{
			SUD = SUD + matrix[i][j];
		}
    }
}

write("Sum of elements above the diagonal = " + SAD + "\n");
write("Sum of elements under the diagonal = " + SUD + "\n");
write("Sum of elements on the diagonal = " + SOD);