Comment on Undo codes for Japanese elevator floor buttonsComments−Uplink3yThat can be used for good: avoid embarrassment and prevent an unnecessary stop.But it can also be used for evil: cancel a valid stop that someone commanded and hope they don't notice.
Comments
That can be used for good: avoid embarrassment and prevent an unnecessary stop.
But it can also be used for evil: cancel a valid stop that someone commanded and hope they don't notice.