If you have a
keydown listener you get a
keyCode on the
event. These are numbers representing keys.
8 is like the infinity sign. So it's delete into infinity.
4 is like floor. Go to the floor is like go to the next line, closer to the floor.
Space is a big, friendly key. And it's the biggest number, and a friendly even number,
Escape is an odd key; it's quite far away on the keyboard. It's number is odd with a sharp edged