Book Image

Hands-On Functional Programming with TypeScript

By : Remo H. Jansen
Book Image

Hands-On Functional Programming with TypeScript

By: Remo H. Jansen

Overview of this book

Functional programming is a powerful programming paradigm that can help you to write better code. However, learning functional programming can be complicated, and the existing literature is often too complex for beginners. This book is an approachable introduction to functional programming and reactive programming with TypeScript for readers without previous experience in functional programming with JavaScript, TypeScript , or any other programming language. The book will help you understand the pros, cons, and core principles of functional programming in TypeScript. It will explain higher order functions, referential transparency, functional composition, and monads with the help of effective code examples. Using TypeScript as a functional programming language, you’ll also be able to brush up on your knowledge of applying functional programming techniques, including currying, laziness, and immutability, to real-world scenarios. By the end of this book, you will be confident when it comes to using core functional and reactive programming techniques to help you build effective applications with TypeScript.
Table of Contents (14 chapters)
5
The Runtime – Closures and Prototypes

Real-World Functional Programming

In the preceding chapter of this book, we have learned about functional programming and functional reactive programming. We tried to avoid using external libraries, because our main goal was to understand the techniques, patterns, and principles of the functional programming and functional-reactive programming paradigms.

In this chapter, we are going to learn about the following topics:

  • Composing with Ramda
  • Currying and partial application with Ramda
  • Lenses with Ramda
  • Working with Immutable.js
  • Working with Immer
  • Working with Funfix

We are going to revisit once more some of the main concepts that we have explored throughout this book. However, this time, our focus will not be to understand these concepts (it is assumed that we already do). Instead, we are going to focus on the usage of some production-ready functional programming libraries, such...