2022-03-12 02:12:26 +00:00
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:PROPERTIES:
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:ID: 6ce50155-471d-490a-baf0-865b75547611
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:ROAM_REFS: @WillKurt2718
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:END:
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#+title: Notes on Will Kurt, Get Programming with Haskell
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2022-03-12 23:33:26 +00:00
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* [[id:68cedf67-0f59-4a06-9344-77d946129653][Functional Programming]]
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2022-03-12 02:12:26 +00:00
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#+begin_quote
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John Backus, who led the team that created Fortran, asked in his Turing Award
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lecture, “Can programming be liberated from the von Neumann style?”
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This question leads to the second way to understand programming, which is the
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subject of the first unit in this book. [[id:68cedf67-0f59-4a06-9344-77d946129653][Functional programming]] attempts to
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liberate programming from the von Neumann style.
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#+end_quote
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2022-03-12 23:33:26 +00:00
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* [[id:67dab4eb-231f-4af0-bf26-b3cf6d83f9a3][Algebraic Data Types]]
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#+begin_quote
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The big problem is that you want a single type that represents both vinyl
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records and books so you can make a searchable inventory. Because you can
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compose types only by /and/, you need to develop an abstraction that describes
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everything that records and books have in common. You’ll then implement only the
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differences in the separate classes. This is the fundamental idea behind
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/inheritance/.
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#+end_quote
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2022-03-12 02:12:26 +00:00
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2022-03-12 23:33:26 +00:00
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#+begin_quote
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In theory, creating object hierarchies is elegant and captures an abstraction
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about how everything in the world is interrelated. In practice, creating even
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trivial object hierar- chies is riddled with design challenges. The root of all
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these challenges is that the only way to combine types in most languages is with
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an /and/. This forces you to start from extreme abstraction and move downward.
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Unfortunately, real life is full of strange edge cases that make this much more
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complicated than you’d typically want.
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#+end_quote
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2022-03-12 02:12:26 +00:00
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#+print_bibliography:
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