Programing an After Effects expression from scratch can be very tricky on time consuming specially if you just started on After Effects so I have regrouped a bunch of After Effects scripts and providing the syntax, project files and demo example. This After Effects expression gallery should help you understand how to use codes and adapt it to your own animation.
Disclaimer: Most of those AE expression reference are programing code syntax that I have researched online and I am happy to refer your name if you are the programmer behind those fabulous codes. One the master I can’t thanks enough for his participation sharing his programing codes on all forum is Dan Ebberts.
My objective here is to provide you a lot of useful After Effects expressions reference that AE animators use. I am planning on constantly updating this page with new expression so beginners and experts can be more efficient and spend less hours on researching and figuring out programming codes in After Effects.