How to Train Yourself to Write Table View Delegates

It's like experiential learning. Like you have to do it and do it several times and find out all the facets of it. It took me probably until I built 50 table views to realize that, oh, that's getting called every time a new cell like appears on the screen. So again, it's one thing to know what code to write and make it work. It's a totally other thing to fully understand what's actually happening with your code.