Hello again,

While experimenting with the JSUDOKU app, I realized it would be helpful if the app provided immediate feedback whenever a user entered an incorrect input. More specifically, the feedback could involve highlighting the affected cell, or even the entire row, column, or square where the error occurs.

Do you think that this functionality would upgrade the application? It doesn’t need to be implemented right away but I think it would be a nice and interactive addition in the future.

Kind Regards,
Bill