I started my Apple platforms development journey a year before Grand Central Dispatch was released with iOS 4. I’ve lived through codebase migrations to NSOperation. Then through the slew of FRP frameworks (of which I consider a concurrency solution): ReactiveCocoa, ReactiveSwift, RxSwift, and finally Combine. My strategy for learning all these paradigms was best described as osmosis while encountering and solving real problems in codebases. Of course, you have to spend time setting breakpo...
