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Introducing Swift 5's Property Wrappers

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Avatar for Erica Sadun Erica Sadun
February 03, 2020
Programming
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Introducing Swift 5's Property Wrappers

A brand new feature waiting for adoption

Avatar for Erica Sadun

Erica Sadun

February 03, 2020
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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