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

Post-generics functional programming libraries

Functional programming libraries have seen a rise in popularity since the advent of generics in Go. No longer is it necessary to mess with the empty interface or to rely on code generation to build out the staples that make up functional programming languages. We’ll explore a few libraries in this section and see how their implementation compares. In doing so, we will stick with examples that are more or less identical but might show off some different functions from the ones we have seen so far in this book.

Pie with generics

The first library that we will look at is Pie. In the previous section, we indicated that there are two versions of Pie available today: v1, which is tailored to Go before the introduction of generics, and v2, which offers the same functionality in terms of functions but leverages generics to do so. v2 is actively maintained, so I expect that over time v1 and v2 will no longer offer feature parity. That...