What is react hooks ?

React hooks are a new feature introduced in React 16.8 that provide a way to manage state and side effects in functional components. Prior to the introduction of hooks, managing state and side effects in React required the use of class-based components, which can be verbose and difficult to understand.

Hooks make it possible to write functional components that have the same capabilities as class-based components, without the need for complex class logic. This allows for cleaner, more concise code that is easier to read and maintain.

One of the key benefits of hooks is that they allow you to reuse stateful logic between different components. This can help reduce duplication and make your code more modular and maintainable.

To use hooks in a functional component, you simply need to import the hook you want to use from the react package, and then call it within the body of your component. For example, the useState hook can be used to add state to a functional component, like this:

import React, { useState } from 'react';

const MyComponent = () => {
  const [count, setCount] = useState(0);

  return (
    <div>
      <p>You clicked {count} times.</p>
      <button onClick={() => setCount(count + 1)}>
        Click me
      </button>
    </div>
  );
};

In this example, the useState hook is used to add a count state variable to the MyComponent functional component. The useState hook returns a tuple containing the current value of the state variable and a function for updating it. In this case, we destructure the tuple into count and setCount variables, which we can use to read and update the count state.

In addition to the useState hook, React also provides a number of other hooks for managing state and side effects, such as useEffect for managing side effects and useContext for accessing context data.

Overall, React hooks provide a powerful and flexible way to add state and side effects to functional components, making it possible to write cleaner, more concise React code. If you haven't tried using hooks yet, I highly recommend giving them a try in your next React project.

Conclusion

I hope this blog post provides a helpful overview of React hooks and their benefits. You can learn more about hooks on the React website (https://reactjs.org/docs/hooks-intro.html) and in the React documentation (https://reactjs.org/docs/hooks-overview.html).