Code Is What Code Does

Madison+ Ruby 2014

Transcript

1. Code Is What Code Does @brixen
2. I <3 Ruby
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>
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