Code Is What Code Does

Transcript

1. Code Is What Code Does @brixen

2. I <3 Ruby

3. None
4. None
5. None

6. We live in a world filled with hard problems

7. watsi.org

8. People are leaving Ruby

9. Haskell Go Clojure Scala Node.js Rust Javascript Elixir

10. Businesses are not choosing Ruby

11. Ruby has problems

12. Too slow

13. 0 1.25 2.5 3.75 5 Rubinius v1 Rubinius JIT v1

    Rubinius v2 MRI 2.1

14. No concurrency

15. 0 1 2 3 4 Rubinius MRI 2.1

16. Too much memory

17. 0 22.5 45 67.5 90 Hash 1 Hash 2

18. Not compiled

19. Monkey patching

20. $ rbx! irb(main):001:0> "abc".clear! => ""! irb(main):002:0> require "./some_gem.rb"! =>

    true! irb(main):003:0> "abc".clear! => "nope"! irb(main):004:0>

21. irb(main):003:0> "abc".clear! => "nope"! irb(main):004:0> "abc".method :clear! => #<Method: String#clear

    (defined in String at some_gem.rb:2)>! irb(main):005:0>
22. None

23. Static types

24. Why use static types?

25. Correctness 1

26. Adding types does not make correct code more correct

27. Speed 2

28. 0 1.25 2.5 3.75 5 Rubinius v1 Rubinius JIT v1

    Rubinius v2 MRI 2.1

29. Maintenance 3

30. Adding complexity does not improve understanding

31. Ruby is a better choice

32. Programming is too hard

33. We are too slow

34. We fail a lot

35. The Cynefin framework

36. Simple Sense • Categorize • Respond 1

37. Simple Sense • Categorize • Respond 1 Best Practice

38. Complicated Sense • Analyze • Respond 2

39. Complicated Sense • Analyze • Respond 2 Good Practice

40. Complex Probe • Sense • Respond 3

41. Complex Probe • Sense • Respond 3 Emergent Behavior

42. Chaotic Act • Sense • Respond 4

43. Chaotic Act • Sense • Respond 4 Novel Solutions

44. Clay vs concrete

45. B.C. A.D.

46. B.C. A.D. Before compilation After deployment

47. Read Eval Print Loop

48. Study Experiment Check Loop

49. Assumptions help us solve problems

50. Assumptions hinder our efforts

51. Technical debt Cost to experiment

52. Refactoring Rework

53. We live in a world filled with hard problems

54. Let's make programming easier

55. Let's test our ideas more quickly

56. Let's fail more productively

57. Improve the world

58. Try Rubinius github.com/rubinius/rubinius

59. Thank you!

60. • http://winstonyw.com/2013/06/12/reddotrubyconf_2013_-_thank_you/ • https://www.flickr.com/photos/veganstraightedge/6037027106/ • http://www.europeancarweb.com/news/ epcp_1010_audi_e_tron_spyder_creation/photo_13.html • http://thisisbuildingmaterials.blogspot.com/2012/03/examples-of-famous- concrete-buildings.html

    Credits