July 2023
Intermediate to advanced
670 pages
17h 13m
English
Content preview from Effective HaskellBecome 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,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.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.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.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.
Deriving More Things
The standard deriving mechanism in Haskell is quite useful but limited, which is why GHC has introduced several language extensions to make deriving more powerful and useful in more circumstances. In this section, you’ll learn about a few of them that have the largest impact on the way you approach writing code. Throughout this book, you’ll learn about others that are useful but less drastic in how they shape the way you approach writing your programs.
Deriving in Newtypes with Generalized Newtype Deriving
One of the first limitations that you’ll run into with deriving in type classes is the problem of having a limited number of type classes that you’re allowed to derive instances for. It makes sense that you might not be ...
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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.