Using Jotai for state management in your Next.js project offers several benefits: simplicity and flexibility, performance, atomic state updates, type safety, SSR support, minimal boilerplate, and a growing ecosystem and community. Overall, it leads to cleaner, more maintainable code, improved performance, and a better developer experience.

import { atom } from 'jotai'

const countAtom = atom(0)

const countryAtom = atom('Japan')

const citiesAtom = atom(['Tokyo', 'Kyoto', 'Osaka'])

const animeAtom = atom([
  {
    title: 'Ghost in the Shell',
    year: 1995,
    watched: true
  },
  {
    title: 'Serial Experiments Lain',
    year: 1998,
    watched: false
  }
])

Jotai provides a global state management solution that allows you to define and access state from anywhere in your project without the need for prop drilling or a centralized store like Redux. This makes it convenient for managing shared state across components, even those that are not directly related or nested within each other.

// App.js

import React from 'react';
import { Provider, atom, useAtom } from 'jotai';

// Define a global atom
const countAtom = atom(0);

function Counter() {
  const [count, setCount] = useAtom(countAtom);

  const increment = () => {
    setCount(count + 1);
  };

  return (
    <div>
      Count: {count}
      <button onClick={increment}>Increment</button>
    </div>
  );
}

function DisplayCount() {
  const [count] = useAtom(countAtom);

  return <div>Count: {count}</div>;
}

function App() {
  return (
    <Provider>
      <Counter />
      <DisplayCount />
    </Provider>
  );
}

export default App;