Book Image

Mastering Functional Programming

By : Anatolii Kmetiuk
Book Image

Mastering Functional Programming

By: Anatolii Kmetiuk

Overview of this book

Functional programming is a paradigm specifically designed to deal with the complexity of software development in large projects. It helps developers to keep track of the interdependencies in the code base and changes in its state in runtime. Mastering Functional Programming provides detailed coverage of how to apply the right abstractions to reduce code complexity, so that it is easy to read and understand. Complete with explanations of essential concepts, practical examples, and self-assessment questions, the book begins by covering the basics such as what lambdas are and how to write declarative code with the help of functions. It then moves on to concepts such as pure functions and type classes, the problems they aim to solve, and how to use them in real-world scenarios. You’ll also explore some of the more advanced patterns in the world of functional programming such as monad transformers and Tagless Final. In the concluding chapters, you’ll be introduced to the actor model, which you can implement in modern functional languages, and delve into parallel programming. By the end of the book, you will be able to apply the concepts of functional programming and object-oriented programming (OOP)in order to build robust applications.
Table of Contents (17 chapters)

Chapter 5

  1. The first order reality is the reality of their business domain. The reality of the business domain is the reality in which the programming is solving their business task. The second-order reality is the reality of writing and running a program.
  2. It provides a set of techniques to abstract away the phenomena of the second-order reality. First, you need to identify a repeating phenomenon. Then, you need to create a data structure to abstract away this phenomenon. The idea is to abstract away the phenomena by describing them, without actually making them happen.
  3. The control over how the program runs and how its codebase is structured. If left without control, the complexity of the second-order reality can overwhelm you and cause mental load.