How to use Redux with React for state management?

To use Redux with React for state management, follow the steps below:

Install Redux and React-Redux packages by running the following command in your terminal:

npm install redux react-redux

Create a Redux store by defining the initial state and a reducer function. Here is an example of a simple reducer function:

const initialState = {
  count: 0
};

function reducer(state = initialState, action) {
  switch (action.type) {
    case 'INCREMENT':
      return {...state, count: state.count + 1};
    case 'DECREMENT':
      return {...state, count: state.count - 1};
    default:
      return state;
  }
}

Create a Redux store by passing the reducer function to the createStore method:

import { createStore } from 'redux';

const store = createStore(reducer);

Wrap your root component with the Provider component from React-Redux and pass the Redux store as a prop:

import React from 'react';
import ReactDOM from 'react-dom';
import { Provider } from 'react-redux';
import store from './store';
import App from './App';

ReactDOM.render(
  <Provider store={store}>
    <App />
  </Provider>,
  document.getElementById('root')
);

Connect your components to the Redux store using the connect function from React-Redux. Here is an example of connecting a component to the store:

import React from 'react';
import { connect } from 'react-redux';

const Counter = ({ count, dispatch }) => {
  return (
    <div>
      <p>Count: {count}</p>
      <button onClick={() => dispatch({ type: 'INCREMENT' })}>Increment</button>
      <button onClick={() => dispatch({ type: 'DECREMENT' })}>Decrement</button>
    </div>
  );
};

const mapStateToProps = (state) => ({
  count: state.count
});

export default connect(mapStateToProps)(Counter);

Now you have successfully integrated Redux with React for state management. You can dispatch actions to update the state in your Redux store, and the connected components will automatically re-render with the updated state.