Hooks are a new addition in React 16.8. They let you use state and other React features without writing a class.

import React, { useState } from 'react';

function Example() {
  // Declare a new state variable, which we'll call "count"
  const [count, setCount] = useState(0);

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

This new function useState is the first “Hook” we’ll learn about, but this example is just a teaser. Don’t worry if it doesn’t make sense yet!

You can start learning Hooks on the next page. On this page, we’ll continue by explaining why we’re adding Hooks to React and how they can help you write great applications.

Note

React 16.8.0 is the first release to support Hooks. When upgrading, don’t forget to update all packages, including React DOM. React Native supports Hooks since the 0.59 release of React Native.

#react #react js #hooks #react hooks #programming