Introduction

MobX is a popular state management library for React applications. It allows developers to manage the state in a more intuitive and reactive way, making it easier to build applications with complex data flows.

Key Concepts

• **Observables:** Data that can be observed for changes.
• **Actions:** Functions that modify the state.
• **Reactions:** Automatically run functions in response to state changes.

These concepts form the foundation of MobX, where observables represent the state, actions modify that state, and reactions update the UI based on state changes.

Installation

To get started with MobX in a React application, you need to install the following packages:

npm install mobx mobx-react

Example

Here's a simple example of using MobX with React:

import React from 'react';
import { observer } from 'mobx-react';
import { makeAutoObservable } from 'mobx';

class Store {
    count = 0;

    constructor() {
        makeAutoObservable(this);
    }

    increment = () => {
        this.count++;
    };
}

const store = new Store();

const Counter = observer(() => (
    

        
{store.count}
        Increment
    
));

export default Counter;

This code creates a simple counter that increments when the button is clicked. The `observer` function wraps the `Counter` component, making it reactive to state changes.

Best Practices

• Keep your store logic separate from your components.
• Use actions for state modifications to maintain a clear flow.
• Leverage MobX's reactivity to minimize unnecessary re-renders.