My current strategy is to learn by watching others implementing code, to expose myself to as much code as possible, in as many different contexts as possible.Having a strong understanding of code is a lot about recognising patterns and their contexts.You can only gain this by experiencing a lot of patterns and a lot of contexts.Lecture 7 of Stanford iOSLecture 8 of Stanford iOSSome Youtube tutorialsPlaying around with Enums in a Playground.Some lessons from the Unwrap app.