Swifty Code: The Real World

Keynote of the lecture given at iOS TLV Meetup on August 3 2016 by Aviel Gross

Twitter: @avielgr

Transcript

1. SWIFTY SWIFTIFICATIONS FOR SWIFT SWIFTTIBUTES *Texts in this keynote where written in some fonts that are not San-Francisco, please accept my sincere apology.
2. Swifty Code
4. OO IS OLD! PROTOCOL ORIENTED IS GOLD! USE STRUCTS NOT CLASSES! IT’S NOT FUNCTIONAL ENOUGH! I HEARD APPLE HAS THAT NEW SWIFT LANG…WHATS ALL THAT ABOUT?
19. Class or Struct?!
20. MAINLY LOGIC OR MODEL? CLASS Logic Model BIG/NOT- SELF CHANGES? Yes CLASS No STRUCT MIGHT WORK REFERENC ING A CLASS? Yes CLASS No
21. The Almighty Swift Enum
22. Swift ❤ enums - Holds values (even named!) - $ Can implement Protocols - Very light! (both on syntax and system)
23. Swift ❤ enums - Knows who he is!
24. Swift ❤ enums - Check for specific case
25. Swift ❤ enums - Or handle all of them + their values
26. Swift ❤ enums Enums can even be your model!
27. Swift ❤ enums TL;DR Use Enums! And don’t buy a MBA
28. try/catch Quoted from hackingwithswift.com/new-syntax-swift-2-error-handling-try-catch
29. Guard
30. Spot the success! Quoted from nshipster.com/guard-and-defer
31. Quoted from nshipster.com/guard-and-defer
32. Use Guard - Verify condition/unwrap needed optional - Early failure - empty/zero/default result Don’t Use Guard - ‘else’ has logic - Entire func is a tiny if-else
33. Defer
35. Custom Operations
36. - associativity & precedence - val X val X val - X= version - Accepts optionals? - Returns optional? - $ test
38. ☝
39. Overloading
41. “Don't leave "broken windows" unrepaired. ” - The Pragmatic Programmer
42. Not var! Use “half dynamic” lets
43. Not string! Use the new #selector
44. use Swift switch Change this…..
45. To This: use Swift switch
46. FAKE IT FAKE IT UNTIL YOU MAKE IT