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.
Understanding the Laws of the Land
Haskell functors, applicatives, and monads are more than just the functions given by their type classes. Each of these type classes also come with a set of laws that govern what the implementations should look like. While “laws” might sound rigid and formal, in reality, understanding these laws can be very helpful because they can often lead you to better understanding of how to create instances of these type classes in the first place. Many of these laws originated in pure mathematics, but you don’t need to have a strong math background to follow this section. We’ll walk through all of the laws purely using what you’ve learned about Haskell so far in this book. If you encounter unfamiliar math-y sounding terminology, ...
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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.