Mastering JavaScript Functional Programming: In-depth guide for writing robust and maintainable JavaScript code in ES8 and beyond

Book Description
Functional programming is a programming paradigm for developing software using functions. With functional programming, you can write more concise code, with increased concurrency and performance. Moreover, the JavaScript language is particularly compatible with functional programming.

In this book, you’ll explore major topics in functional programming with JavaScript to effectively produce shorter, cleaner, and testable programs. You’ll delve into functional programming, and get up to speed with writing and testing pure functions, and even reducing side-effects, along with discovering other features to make your applications functional in nature. As you advance, you’ll cover techniques to simplify coding, apply recursion for loopless coding, achieve immutability, implement design patterns, and also work with data types.

By the end of this book, you’ll have mastered the JavaScript skills you need to confidently program functional applications.

What you will learn
Create reliable code with closures and immutable data
Convert existing methods into pure functions, and loops into recursive methods
Develop powerful applications with currying and function composition
Separate the logic of your system from implementation details
Implement composition and chaining techniques to simplify coding
Understand how to implement object-oriented programming design patterns in functional programming
Who this book is for
If you are a JavaScript developer who wants to apply functional programming techniques, then this book is for you. Basic knowledge of functional programming concepts is required.

Table of Contents
Becoming Functional – Several Questions
Thinking Functionally – A First Example
Starting Out with Functions – A Core Concept
Behaving Properly – Pure Functions
Programming Declaratively – A Better Style
Producing Functions – Higher-Order Functions
Transforming Functions – Currying and Partial Application
Connecting Functions – Pipelining and Composition
Designing Functions – Recursion
Ensuring Purity – Immutability
Implementing Design Patterns – The Functional Way
Building Better Containers – Functional Data Types