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Hooks are a new addition in React 16.8. They let you use state and other React features without writing a class. In this chapter, we will learn how to modernize our components using useState and useEffect.
The useState hook allows functional components to maintain internal state. It returns an array containing the current state value and a function to update it. This fundamentally shifts how we approach component lifecycle and state management.
import React, { useState } from 'react'; export default function Counter() { const [count, setCount] = useState(0); return ( <div> <p>You clicked {count} times</p> <button onClick={ () => setCount(count + 1) }> Click me </button> </div> ); }
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