Book Image

MobX Quick Start Guide

By : Pavan Podila, Michel Weststrate
Book Image

MobX Quick Start Guide

By: Pavan Podila, Michel Weststrate

Overview of this book

MobX is a simple and highly scalable state management library in JavaScript. Its abstractions can help you manage state in small to extremely large applications. However, if you are just starting out, it is essential to have a guide that can help you take the first steps. This book aims to be that guide that will equip you with the skills needed to use MobX and effectively handle the state management aspects of your application. You will first learn about observables, actions, and reactions: the core concepts of MobX. To see how MobX really shines and simplifies state management, you'll work through some real-world use cases. Building on these core concepts and use cases, you will learn about advanced MobX, its APIs, and libraries that extend MobX. By the end of this book, you will not only have a solid conceptual understanding of MobX, but also practical experience. You will gain the confidence to tackle many of the common state management problems in your own projects.
Table of Contents (17 chapters)
Title Page
Packt Upsell

Chapter 5. Derivations, Actions, and Reactions

Now that the MobX foundations have been laid with the three pillars of observables, actions, and reactions, it's time we go deeper and understand the finer aspects. In this chapter, we will explore the core philosophies and nuances of the MobX API, as well as some special APIs to simplify asynchronous programming in MobX. 

The topics covered in this chapter include:

  • Computed properties (also known as derivations) and their various options
  • Actions, with special focus on async actions
  • Reactions and the rules governing when MobX reacts