Introducing Swift 5's Property Wrappers

Transcript

1. Property Wrappers erica sadun 1

2. Language-like but not Language 2

3. Language-like but not Language 3

4. Operators 4

5. 5

6. 6

7. Trailing closures 7

8. None
9. None

10. SwiftUI 10

11. None
12. None
13. None

14. Property Wrappers: History 14

15. Property Wrappers: History 15

16. Property Wrappers: History 16

17. None

18. 18

19. None

20. My First Property Wrapper 20

21. String Trimming 21

22. 22

23. None

24. Mandate your behavior contracts at the point of declaration, not

    the point of use 24

25. 25 Mandate your behavior contracts at the point of declaration,

    not the point of use
26. None
27. None
28. None

29. ‣ Simple ‣ Readable ‣ Positioned at the point of

    declaration ‣ Documention-friendly

30. Uses ‣ Thread safety ‣ Barriers ‣ Syncing with stores

    / web services ‣ Validation on assignment ‣ Data configuration ‣ etc 30

31. Property Wrappers: Tastes like core language. Less filling. Fewer calories.

    31

32. Property Wrappers erica sadun 32