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Stack funcional com Elm

Avatar for Éber Freitas Dias Éber Freitas Dias
February 29, 2020
Programming
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Stack funcional com Elm

Avatar for Éber Freitas Dias

Éber Freitas Dias

February 29, 2020
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Transcript

  1. Stack funcional com Elm

  2. Olá, eu sou o Éber! Elixir & Elm - Radify

  3. None
  4. None

  5. Agradecimentos

  6. Me interrompam!

  7. JavaScript... é complicado

  8. JavaScript... é complicado • dinâmica e flexível

  9. None

  10. JavaScript... é complicado • dinâmica e flexível • cheia de

    *wats*
  11. None

  12. What the… JavaScript? - Kyle Simpsons https://youtu.be/2pL28CcEijU

  13. JavaScript... é complicado • dinâmica e flexível • cheia de

    *wats* • ecossistema populado
  14. None

  15. JavaScript... é complicado • dinâmica e flexível • cheia de

    *wats* • ecossistema populado • as coisas estão melhorando...

  16. Alternativas

  17. Alternativas • CoffeeScript, PureScript, Dart, Reason, Haxe…

  18. language Hipster

  19. Alternativas • CoffeeScript, PureScript, Dart, Reason, Haxe… • TypeScript

  20. Alternativas • CoffeeScript, PureScript, Dart, Reason, Haxe… • TypeScript •

    LiveView

  21. Alternativas • CoffeeScript, PureScript, Dart, Reason, Haxe… • TypeScript •

    LiveView • Lumen
  22. None

  23. Uma linguagem agradável… … para webapps confiáveis … sem exceções

    em tempo de execução … com mensagens de erro amigáveis

  24. Elm • Evan Czaplicki, 2012 • Puramente funcional • Fortemente

    tipada • Haskell, OCaml, F# • Compila para JS • Compilador escrito em Haskell • 0.19.1 (Out/2019)

  25. Linguagem & arquitetura

  26. Linguagem • Funcional

  27. Linguagem • Funcional • Sintaxe

  28. None
  29. None
  30. None

  31. Linguagem • Funcional • Sintaxe • Compiler (runtime exceptions &

    error msgs)
  32. None
  33. None
  34. None
  35. None
  36. None

  37. Linguagem • Funcional • Sintaxe • Compiler (runtime exceptions &

    error msgs) • Fortemente tipada

  38. Linguagem • Funcional • Sintaxe • Compiler (runtime exceptions &

    error msgs) • Fortemente tipada • Alias types
  39. None

  40. Linguagem • Funcional • Sintaxe • Compiler (runtime exceptions &

    error msgs) • Fortemente tipada • Alias types • Union types
  41. None

  42. Linguagem • Funcional • Sintaxe • Compiler (runtime exceptions &

    error msgs) • Fortemente tipada • Alias types • Union types • Maybe
  43. None
  44. None

  45. [ 1, NaN, NaN ]

  46. None
  47. None
  48. None

  49. Linguagem • Funcional • Sintaxe • Compiler (runtime exceptions &

    error msgs) • Fortemente tipada • Alias types • Union types • Maybe • Funcional² (sem efeitos colaterais)

  50. Arquitetura • The Elm Architecture (MVU)

  51. https://elmprogramming.com/model-view-update-part-1.html

  52. Arquitetura • The Elm Architecture (MVU) • Commands & Subscriptions

  53. https://elmprogramming.com/subscriptions.html

  54. Exemplo

  55. None
  56. None
  57. None
  58. None
  59. None
  60. None

  61. Trade-offs

  62. Quem usa? • thoughtbot • Rakuten • NoRedInk • Stone

    • Cálculo Jurídico • PivotalTracker • Emirates • Vy • ...

  63. Como aprender? • https://guide.elm-lang.org/ • https://elmprogramming.com/ • https://www.manning.com/books/elm-in-action • https://cuducos.me/2016/10/24/vamos-aprender-elm.html

    • https://www.twitch.tv/eberfreitas

  64. Dúvidas? speakerdeck.com/eberfreitas twitter.com/eber_freitas github.com/eberfreitas linkedin.com/in/eberfreitas [email protected]