js2 - challenge 3.js needs one more test for Nx0 array

[isam007]

Currently this solution to challenge 3 passes all tests and got accepted.

However this type of solution shouldn't work if the row > 0, but col = 0! Yet there is no test case to catch that.

This challenge needs one more test case where row > 0 and col = 0, for example (solution (3, 0)).