Explore the functional programming paradigm and the different techniques for developing better algorithms, writing more concise code, and perfog seamless testing

Key Features

Explore this second edition updated to cover features like async functions and transducers, as well as functional reactive programming

Enhance your functional programming (FP) skills to build web and server apps using jаvascript

Use FP to enhance the modularity, reusability, and performance of apps

Book Description

It helps you write concise and testable code. To help you take your programming skills to the next level, this comprehensive book will assist you in harnessing the capabilities of functional programming with jаvascript and writing highly maintainable and testable web and server apps using functional jаvascript.

This second edition is updated and improved to cover features such as transducers, lenses, prisms and various other concepts to help you write efficient programs. By focusing on functional programming, you'll not only start to write but also to test pure functions, and reduce side effects. The book also specifically allows you to discover techniques for simplifying code and applying recursion for loopless coding. Gradually, you'll understand how to achieve immutability, implement design patterns, and work with data types for your application, before going on to learn functional reactive programming to handle complex events in your app. Finally, the book will take you through the design patterns that are relevant to functional programming.

By the end of this book, you'll have developed your jаvascript skills and have gained knowledge of the essential functional programming techniques to program effectively.

What you will learn

Simplify jаvascript coding using function composition, pipelining, chaining, and transducing

Use declarative coding as opposed to imperative coding to write clean jаvascript code

Create more reliable code with closures and immutable data

Apply practical solutions to complex programming problems using recursion

Improve your functional code using data types, type checking, and immutability

Understand advanced functional programming concepts such as lenses and prisms for data access

Who this book is for

This book is for jаvascript developers who want to enhance their programming skills and build efficient web applications. Frontend and backend developers who use various jаvascript frameworks and libraries like React, Angular, or Node.js will also find the book helpful. Working knowledge of ES2019 is required to grasp the concepts covered in the book easily.

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

Transfog 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



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