What are the differences between React Hooks and Class Components in TypeScript?

What are the main differences between React Hooks and Class Components in TypeScript?

React Hooks allow you to use state and other React features without writing a class. Class Components require you to manage state and lifecycle methods in a more complex way.

Can you give me an example of a simple component using Hooks?

Sure! Here's a simple functional component using Hooks:

import React, { useState } from 'react';

const Counter: React.FC = () => {
    const [count, setCount] = useState(0);

    return (
        <div>
            <p>Count: {count}</p>
            <button onClick={() => setCount(count + 1)}>Increment</button>
        </div>
    );
};

export default Counter;

How does state management differ between the two?

In Class Components, state is managed using this.state and updated with this.setState(). In Hooks, you use the useState hook to manage state in a more straightforward way.

Are there any performance differences between them?

Generally, Hooks can lead to better performance due to their simpler structure and the ability to optimize rendering with React.memo. However, performance can vary based on how components are implemented.