Hands-On Functional Programming with TypeScript: Explore functional and reactive programming to create robust and testable TypeScript applications

by Remo H. Jansen

Overview

Discover the power of functional programming, lazy evaluation, monads, concurrency, and immutability to create succinct and expressive implementations

Key Features

• Get a solid understanding of how to apply functional programming concepts in TypeScript
  
  


• Explore TypeScript runtime features such as event loop, closures, and Prototypes
  
  


• Gain deeper knowledge on the pros and cons of TypeScript
  
  

Book Description

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.

What you will learn

• Understand the pros and cons of functional programming
  
  


• Delve into the principles, patterns, and best practices of functional and reactive programming
  
  


• Use lazy evaluation to improve the performance of applications
  
  


• Explore functional optics with Ramda
  
  


• Gain insights into category theory functional data structures such as Functors and Monads
  
  


• Use functions as values, so that they can be passed as arguments to other functions
  
  

Who this book is for

This book is designed for readers with no prior experience of functional programming with JavaScript, TypeScript or any other programming language. Some familiarity with TypeScript and web development is a must to grasp the concepts in the book easily.

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Product Details

ISBN-13:	9781788838184
Publisher:	Packt Publishing
Publication date:	01/30/2019
Sold by:	Barnes & Noble
Format:	eBook
Pages:	210
File size:	2 MB

About the Author

Remo H. Jansen lives in Dublin, Ireland, where he works as the managing director of Wolk Software Limited and as a part-time lecturer at CCT College Dublin. Remo is a Microsoft MVP and an active member of the TypeScript community. He is the author of Learning TypeScript 2.x, organizes the Dublin TypeScript and Dublin OSS meetups, writes a blog, and maintains some open source projects on GitHub. Remo is available for conference talks, independent consulting, and corporate training services opportunities.

Table of Contents

Table of Contents

1. Functional programming fundamentals
2. Mastering functions
3. Mastering asynchronous programming
4. The runtime: The event loop and the this operator
5. The runtime: Prototypes and closures
6. Functional programming techniques
7. Category theory
8. Optics, immutability, and laziness
9. Functional reactive programming
10. Real-world functional programming
11. Directory of TyprScript FP libraries
12. FP learning roadmap from novice to expert