Why every developer should read Plato

1. Why every developer   should read Plato

2. @OmarReiss CTO at Yoast Philosopher Developer Platomar

3. 26%

4. What makes WordPress a superhero?

5. WordPress makes users awesome! Source: useronboard.com

7. How does WordPress turn users into superheroes?

8. We can build almost anything using WordPress

9. 47,260 plugins

10. You can write a WordPress plugin   with 0 lines of code.

11. What makes WordPress so easy to plugin to?

12. Filters! (and actions)

13. API add_filter remove_filter apply_filters Filters

14. A ﬁlter is a function

16. Timing The plugins are loaded WordPress is initialised The head is rendered The content is rendered After After do_action(‘plugins_loaded’) do_action(‘init’) do_action(‘wp_head’) apply_ﬁlters(‘the content’) Before Before

18. What should we use ﬁlters for?

19. “As a site owner, I want Yoast SEO to use the excerpt as a meta description.” Usecase

20. “As a custom ﬁelds plugin builder, I want Yoast SEO to use a custom ﬁeld as a meta description.” Usecase

21. “As a {ROLE}, I want Yoast SEO to use {FIELD} as a meta description.” Usecase

22. How does this translate to WordPress?

23. “As a {ROLE}, I want to be able to ﬁlter the meta description that Yoast SEO outputs.” Usecase

24. Example Example

25. What is a meta description?

26. Filter the output

27. Filter the data

28. Filtering the output

29. Filtering the data

30. Data types String -> “hello” Integer -> 123 Array -> [$a, $b, $c] etc. What is data?

31. Is “<html><body>Hello world</body></html>” a string?

32. V = f( M )

33. View = function( Model )

34. Filter data, not representation

35. Filter the data

37. Can I safely ﬁlter data?

38. Type juggling #YO LO

39. Notice: Array to string conversion…

40. Type checking madness

41. Never trust ﬁltered data Because #YOLO

42. Hey! But wasn’t this supposed to be easy?

43. And what does this have to do with Plato?

44. - Maieutike - Irony - Anamnesis

45. 26%

47. WordPress makes users awesome! Source: useronboard.com

49. How does WordPress turn users into superheroes?

50. We can build almost anything using WordPress

51. 47,260 plugins

52. You can write a WordPress plugin   with 0 lines of code.

53. What makes WordPress so easy to plugin to?

54. Filters! (and actions)

55. API add_filter remove_filter apply_filters Filters

56. A ﬁlter is a function What is a ﬁlter?

58. Timing The plugins are loaded WordPress is initialised The head is rendered The content is rendered After After do_action(‘plugins_loaded’) do_action(‘init’) do_action(‘wp_head’) apply_ﬁlters(‘the content’) Before Before

60. What should we use ﬁlters for?

61. “As a site owner, I want Yoast SEO to use the excerpt as a meta description.” Usecase

62. “As a custom ﬁelds plugin builder, I want Yoast SEO to use a custom ﬁeld as a meta description.” Usecase

63. “As a {ROLE}, I want Yoast SEO to use {FIELD} as a meta description.” Usecase

64. How does this translate to WordPress?

65. “As a {ROLE}, I want to be able to ﬁlter the meta description that Yoast SEO outputs.” Usecase

66. Example Example

67. What is a meta description?

68. Filter the output

69. Filter the data

70. Filtering the output

72. Data types String -> “hello” Integer -> 123 Array -> [$a, $b, $c] etc. What is data?

73. Is “<html><body>Hello world</body></html>” a string?

74. V = f( M )

75. View = function( Model )

76. Filter data, not representation

77. Filter the data

79. Can I safely ﬁlter data?

80. Type juggling #YO LO

81. Notice: Array to string conversion…

82. Type checking madness

83. Never trust ﬁltered data Because #YOLO

84. But wasn’t this supposed to be easy?

85. Issues with filters In WordPress it’s hard to distinguish representation from raw data, because of reasons. In WordPress it’s not possible to trust filtered data, because of reasons. In WordPress it’s not possible to know when a filter was applied, because of reasons. Conclusion

86. And what does this have to do with Plato?

87. Why every developer should read Plato Plato working on his art To learn about Socrates To learn about Plato To practice inquiry

88. Thank you! @OmarReiss

Why every developer should read Plato

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Viewers also liked

Viewers also liked (12)

Similar to Why every developer should read Plato

Similar to Why every developer should read Plato (20)

Recently uploaded

Recently uploaded (20)

Why every developer should read Plato