What is NextJS and major features of it?

Next.js is a popular and lightweight framework for static and server‑rendered applications built with React. It also provides styling and routing solutions. Below are the major features provided by NextJS,

1. Server-rendered by default
2. Automatic code splitting for faster page loads
3. Simple client-side routing (page based)
4. Webpack-based dev environment which supports (HMR)
5. Able to implement with Express or any other Node.js HTTP server
6. Customizable with your own Babel and Webpack configurations

Practical Code Example

// Next.js: Full-stack React framework featuring:
// 1. App Router with React Server Components (RSC)
// 2. Hybrid rendering (SSR, SSG, ISR)
// 3. API Route Handlers
// 4. Built-in Image, Font, and Script optimization