> Method swizzling is also an important tool for any aspiring macOS developer, unavailable/onerously painful in Swift. I use swizzling in Swift. Can't see why

> Method swizzling is also an important tool for any aspiring macOS developer, unavailable/onerously painful in Swift. I use swizzling in Swift. Can't see why it's more painful than in Objective-C. It's also not something you do all the time. It's basically write once code for me. Funny enough I mostly use it so swizzle UIViewController lifecycle methods and then just pass closures in instead of subclassing UIViewController. Yes, I don't subclass UIViewController and haven't for years and years. (I mostly don't subclass that much nowadays - take that Objective-C!)