November 2015
Intermediate to advanced
166 pages
3h 14m
English
Content preview from Haskell Design PatternsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Scrap your boilerplate
Scrap your boilerplate (SYB) is another early approach to datatype-generic programming, that is, it provides a way to define generic functions over a "universal" type representation.
SYB differs from the other two approaches we have explored in that the type representation is obfuscated from the user.
Earlier versions of the SYB approach had a strong focus on generic traversals over complex nested data structures, for example:
data Book = Book Title [Chapter] data Chapter = Chapter Title [Section] data Section = Section Title [Para] type Title = String; type Para = String haskellDP = Book "Haskell Design Patterns" chapters chapters = [Chapter "The building blocks" sections1, Chapter "IO Patterns" sections2] sections1 = [Section ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.