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
Dedication
Packt Upsell
Foreword
Contributors
Preface
Index

Chapter 4. Crafting the Observable Tree

Defining the reactive model of your application is usually the first step when working with MobX and React. We know very well that this is all in the realm of the following:

  • Observables, which represent the application state
  • Actions, which mutate it
  • Reactions, which produce side effects by observing the changing observables

When defining the observable state, MobX gives you various tools to carefully control observability. In this chapter, we will explore this side of MobX and take a deeper look at crafting the observable tree.

The topics that will be covered in this chapter are the following:

  • The shape of data
  • Controlling observability with various decorators
  • Creating computed properties
  • Modeling MobX stores with classes