Book Image

Functional Programming in Go

By : Dylan Meeus
Book Image

Functional Programming in Go

By: Dylan Meeus

Overview of this book

While Go is a multi-paradigm language that gives you the option to choose whichever paradigm works best for the particular problem you aim to solve, it supports features that enable you to apply functional principles in your code. In this book, you’ll learn about concepts central to the functional programming paradigm and how and when to apply functional programming techniques in Go. Starting with the basic concepts of functional programming, this Golang book will help you develop a deeper understanding of first-class functions. In the subsequent chapters, you’ll gain a more comprehensive view of the techniques and methods used in functional languages, such as function currying, partial application, and higher-order functions. You’ll then be able to apply functional design patterns for solving common programming challenges and explore how to apply concurrency mechanisms to functional programming. By the end of this book, you’ll be ready to improve your code bases by applying functional programming techniques in Go to write cleaner, safer, and bug-free code.
Table of Contents (17 chapters)
1
Part 1: Functional Programming Paradigm Essentials
7
Part 2: Using Functional Programming Techniques
11
Part 3: Design Patterns and Functional Programming Libraries

Functional Programming Libraries

In the previous chapters of this book, we looked at how we can leverage functional programming techniques in Go. In doing so, we have looked over how functions can be created, such as Filter, Map, Reduce, and so on. We also looked at data structures such as the monad and its application with the Maybe data type, which could represent a value that’s either present or absent without having to rely on nil.

As mentioned previously, these are common tools in a functional programmer’s toolbox. As such, there are open source libraries that have this functionality built in. As generics are a recent addition in Go (about 1 year ago at the time of writing), not all libraries currently leverage generics to implement these concepts. For that reason, this chapter will cover both libraries that work in all versions of Go, as well as libraries that will exclusively work in versions that support Generics.

In this chapter, we will cover the following...