Introduction

Welcome to the world of React! Beyond the basics of components, JSX, and virtual DOM, lies a powerful concept that streamlines the management of reusable logic and side effects: React Hooks. What are Hooks, and why are they so transformative for React development?

React Hooks: Elevating Functional Components

Traditionally, reusable logic in React resided primarily within class components through lifecycle methods and higher-order components. Hooks, introduced in React 16.8, revolutionized this by enabling functional components to manage state, side effects, and other React features without the need for classes. They provide a more concise, flexible, and powerful way to handle complex logic in your components.

Exploring Key Hooks: useState and useEffect

useState: This hook manages state within functional components. It accepts an initial state value and returns an array containing the current state and a function to update it. Example:

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

useEffect: This hook handles side effects, such as data fetching, subscriptions, or DOM manipulations. It accepts a function that performs the side effect and an optional dependency array. Example:

useEffect(() => {
  document.title = `You clicked ${count} times`;
}, [count]); // Only re-run the effect if count changes

Why Use Hooks?

• Simplified Logic: Hooks provide a cleaner and more direct way to manage state and side effects compared to class components.
• Improved Code Reusability: Custom hooks allow you to encapsulate and reuse logic across multiple components.
• Better Performance: Hooks can lead to performance improvements by avoiding the overhead associated with class components.