My talk from SwiftLondon meet up about Rx

1. Helpful introduction to Rx

2. Agenda
• What is Rx
• Why Rx
• How Rx

3. What is Rx
• Observable<T>
• Observable, Observer is dual of Enumerable,
Enumerator

4. What is Dual
If dual A is B the dual of B is A

5. The simplest example of dual is getter
and setter

6. Enumerable, Enumerator

7. Observable, Observer

8. Why Rx is so powerful ?

9. It allows to treat sequence of values over
time as regular sequence (map, flatMap,
zip, combine)

10. Provides declarative API

11. Compositional disposal

12. Abstraction over threads and
queues with Schedulers

13. Easy integration

14. Everything is lazy (*)

15. It’s architecture agnostic!

17. Tips
• Play with Rx before using it in real project
• Do not apply Rx to whole levels in the beginning
• Push subscription as far as possible

18. Resources
• RxSwift book from Ray Wenderlich team
• http://reactivex.io
• https://github.com/ReactiveX/RxSwift
• http://rxmarbles.com

19. Alternatives
• ReactiveSwift/ ReactiveCocoa -
https://github.com/ReactiveCocoa
• ReactiveKit/Bond - https://github.com/ReactiveKit

20. Questions?