State Management with MobX in React

1. Introduction

MobX is a state management library for JavaScript applications. It is often used in conjunction with React to manage the state of applications in a reactive manner. MobX allows developers to create observables and reactions, enabling efficient updates to the UI based on state changes.

2. Key Concepts

3. Installation

To install MobX and MobX React, run the following command:

npm install mobx mobx-react-lite

4. Creating a Store

Creating a store involves defining observable properties and actions:

import { makeAutoObservable } from "mobx";

class CounterStore {
    count = 0;

    constructor() {
        makeAutoObservable(this);
    }

    increment() {
        this.count++;
    }

    decrement() {
        this.count--;
    }
}

const counterStore = new CounterStore();
export default counterStore;

5. Using the Store in Components

To use the store in a React component:

import React from "react";
import { observer } from "mobx-react-lite";
import counterStore from "./CounterStore";

const CounterComponent = observer(() => {
    return (
        

            
Count: {counterStore.count}
             counterStore.increment()}>Increment
             counterStore.decrement()}>Decrement
        
    );
});

export default CounterComponent;

6. Best Practices

• Keep store logic separate from UI components.
• Use actions for state modifications to ensure predictable state changes.
• Utilize MobX's `makeAutoObservable` to simplify store creation.

7. FAQ