Swift Important Topics Topics What is value types and reference types in Swift? What are optionals in Swift? · What is an implicitly unwrapped optional? · What are the correct ways to unwrap an optional value? · What is optional chaining? In an enum what are raw and associated values? What is Closures? · Trailing Closures? · Closures as Reference Types? · Escaping Closures? · AutoClosures? What is Capturing Values? What does it mean to “capture self” in a closure and why can it lead to a memory leak? What are the Access Controls? · open, · public, · ...