Comments are not to explain corner cases, but to explain why are you you doing what you are doing, what is your motivation. Why are you calling a system API with these strange parameters? Why do want to sort this table? Why are you lazy loading these data structures?
If a function fits into page, refactoring it into several tiny well named functions will give you an implementation where you can easily see what you are trying to do, but makes it difficult to see what you are actually doing, as you need to jump around between function implementations to read it. With a few good comments you'll get the best of both worlds, and you can now read both your implementation and your intentions with a single continous read.
If a function fits into page, refactoring it into several tiny well named functions will give you an implementation where you can easily see what you are trying to do, but makes it difficult to see what you are actually doing, as you need to jump around between function implementations to read it. With a few good comments you'll get the best of both worlds, and you can now read both your implementation and your intentions with a single continous read.