unique path

//Unique Paths
function numberOfPaths(m , n)
{

var count=[[0,0,0], [0,0,0], [0,0,0]];

for (i = 0; i < m; i++)
    count[i][0] = 1;

for (j = 0; j < n; j++)
    count[0][j] = 1;

for (i = 1; i < m; i++)
{
    for (j = 1; j < n; j++)

       count[i][j] = count[i - 1][j] + count[i][j - 1];
}
console.log(count[m - 1][n - 1]);

}

numberOfPaths(3, 3);