How do I make a coyote time jump?

Hello,

I'm making a 2D platformer, and I would like to implement the famous coyote time. I'm new to video game development and I have no idea on how to implement it. Maybe someone has an example or a suggestion ? :) Thank you !!

Here is my version:

dropbox.com/s/a7e6l7c9x30pt5i/CoyoteJump.c3p

If you need double-jump or jump sustain, this will require more work.

Thank you so much dop2000 this is exactly what I was looking for !