unlocks a new level of skill with this challenging language. Going beyond the basics of syntax and structure, this book opens up critical topics like advanced types, concurrency, and data processing.

Summary

Turn the corner from “Haskell student” to “Haskell developer.”

Haskell in Depth

explores the important language features and programming skills you’ll need to build production-quality software using Haskell. And along the way, you’ll pick up some interesting insights into why Haskell looks and works the way it does. Get ready to go deep!

About the technology

Software for high-precision tasks like financial transactions, defense systems, and scientific research must be absolutely, provably correct. As a purely functional programming language, Haskell enforces a mathematically rigorous approach that can lead to concise, efficient, and bug-free code. To write such code you’ll need deep understanding. You can get it from this book!

About the book

Haskell in Depth

unlocks a new level of skill with this challenging language. Going beyond the basics of syntax and structure, this book opens up critical topics like advanced types, concurrency, and data processing. You’ll discover key parts of the Haskell ecosystem and master core design patterns that will transform how you write software.

What's inside

Building applications, web services, and networking apps

Using sophisticated libraries like lens, singletons, and servant

Organizing projects with Cabal and Stack

Error-handling and testing

Pure parallelism for multicore processors

About the reader

For developers familiar with Haskell basics.

About the author

Vitaly Bragilevsky

has been teaching Haskell and functional programming since 2008. He is a member of the GHC Steering Committee.

Table of Contents

PART 1 CORE HASKELL

1 Functions and types

2 Type classes

3 Developing an application: Stock quotes

PART 2 INTRODUCTION TO APPLICATION DESIGN

4 Haskell development with modules, packages, and projects

5 Monads as practical functionality providers

6 Structuring programs with monad transformers

PART 3 QUALITY ASSURANCE

7 Error handling and logging

8 Writing tests

9 Haskell data and code at run time

10 Benchmarking and profiling

PART 4 ADVANCED HASKELL

11 Type system advances

12 Metaprogramming in Haskell

13 More about types

PART 5 HASKELL TOOLKIT

14 Data-processing pipelines

15 Working with relational databases

16 Concurrency

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