Writing code you won't hate tomorrow
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Writing code you won't hate tomorrow

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As developers we write code everyday, only to frown at it a week after that. Why do we have such a hard time with code written by others and ourselves, this raging desire to rewrite everything we see? ...

As developers we write code everyday, only to frown at it a week after that. Why do we have such a hard time with code written by others and ourselves, this raging desire to rewrite everything we see? Writing code that survives the test of time and self judgment is a matter of clarity and simplicity. Let's talk about growing, learning and improving our code with calisthenics, readability and good design.

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  • 1. Writing code that lasts. Rafael Dohms @rdohms photo: djandyw.com
  • 2. Writing code you won’t hate tomorrow. Rafael Dohms @rdohms photo: djandyw.com
  • 3. Let me introduce you to someone…
  • 4. No Tests. shhh.. don’t tell Grumpy. Wrote his own framework. .. and used it. Used Singletons! .. and every other anti-pattern out there. 500 line methods. … not even methods, they were functions
  • 5. photo: Rob Allen (@akrabat)
  • 6. REWRITE ALL THE CODE!
  • 7. photo: Glyn Lowe Photoworks Real Developers, SHIP STUFF.
  • 8. How do we find balance? photo: Kalexanderson
  • 9. Code has an expiration date photo: CarbonNYC
  • 10. Code is photo by: massdistraction perishable, it rots.
  • 11. Code Evolves photo by: kevin dooley
  • 12. Languages evolve. photo by: raneko
  • 13. You evolve. photo by: Kaptain Kobold
  • 14. Complexity kills Comprehension photo: osbornb
  • 15. Bad Design photo: miskan
  • 16. Bad specs
  • 17. NIH photo by: John 'K' source: Urban dictionary
  • 18. NIH | nɒt ɪnˈventɪd hɪə | Not Invented Here —The German art of humiliating any technology, agricultural product, or (medical) scientific work that has not been invented or produced in Germany, Switzerland, or Austria. photo by: John 'K' source: Urban dictionary
  • 19. The Solution™ photo: Ian Sane
  • 20. Improve code
  • 21. make it easier to comprehend Improve code
  • 22. make it easier to comprehend make it flexible Improve code
  • 23. make it easier to comprehend make it flexible make it tested Improve code
  • 24. make it easier to comprehend make it flexible make it tested Improve code make it easier to replace, refactor
  • 25. make it easier to comprehend make it flexible make it tested Improve code make it easier to replace, refactor make it not exist
  • 26. Testing photo by: jeffkrause
  • 27. Good Design Concepts
  • 28. SOLID Single Responsibility Open and Close Liskov substitution Interface Segregation Dependency Inversion photo by j_regan
  • 29. photo by lofink STUPID Singleton Tight Coupling Untestability Premature Optimization Indescriptive Naming Duplication
  • 30. photo by halloweenstock Design Patterns
  • 31. Composer
  • 32. PIE Proudly Invented Elsewhere
  • 33. guzzle/guzzle HTTP client for RESTful API clients photo by j_regan
  • 34. morrisonlevi/ardent A library of collections for PHP
  • 35. Readability photo: Morgenland
  • 36. paragraphs photo: Trossachs Photography
  • 37. whitespace
  • 38. Cape Town São Paulo R&D Team for MIH/Naspers
  • 39. Object Calisthenics photo by: boston_public_library
  • 40. Calisthenics /ˌkaləsˈTHeniks/ Calisthenics are a form of dynamic exercise consisting of a variety of simple, often rhythmical, movements, generally using minimal equipment or apparatus. photo by: boston_public_library
  • 41. Its about perception, not rules or standards photo by: david_a_l
  • 42. #1 Only one indentation level per method. photo by: justinliew
  • 43. #2 Do not use else photo by: justinliew
  • 44. #3 Wrap primitive types, if they contain behavior photo by: justinliew
  • 45. #4 Only one -> per line photo by: justinliew
  • 46. #5 Do not abbreviate. photo by: justinliew
  • 47. #6 Keep your classes small. photo by: justinliew
  • 48. #7 Limit your instance variables to less then 5 photo by: justinliew
  • 49. #8 Use first class collections photo by: justinliew
  • 50. #9 Use getters and setters. photo by: justinliew
  • 51. #10 Document your code. photo by: justinliew
  • 52. Your turn.
  • 53. Improve yourself!
  • 54. Read lots of code!
  • 55. Write simple code.
  • 56. Try Object Calisthenics for a month.
  • 57. Use someone else’s code.
  • 58. Share bite size libraries.
  • 59. Thank you. @rdohms https://joind.in/12734 http://doh.ms http://slides.doh.ms please rate me!
  • 60. http://l.doh.ms/oc-links Video recording Slides Books Resources on Object Calisthenics