Next.js Intro
The React Framework for the Web. Learn why Next.js is the industry standard for production React apps.
The React Framework for the Web. Learn why Next.js is the industry standard for production React apps. This hands-on tutorial focuses on practical implementation of next.js intro concepts.
Next.js Intro
React is a library (it just handles the View). Next.js is a Framework (it handles Routing, Data Fetching, SEO, and more).
It is the standard way to build React applications today.
1. Why Next.js? 🚀
- File-Based Routing: No need to configure a router. Just create files.
- Server-Side Rendering (SSR): Pages render on the server, making them fast and SEO-friendly.
- Fullstack Capable: You can write backend API routes in the same project.
2. The App Router 🚏
Next.js 13 introduced the App Router. It uses the app/ directory.
app/page.jsx-> Home Page (/)app/about/page.jsx-> About Page (/about)app/blog/page.jsx-> Blog Page (/blog)
3. Server vs. Client Components 🖥️
This is the biggest shift in mental model.
Server Components (Default)
- Render on the Server.
- Can read files/databases directly.
- Cannot use Hooks (
useState,useEffect) or Event Listeners (onClick). - Why? Faster performance, smaller bundle size.
Client Components
- Render on the Client (Browser).
- Can use Hooks and Interactivity.
- Add
"use client"at the top of the file to enable this.
4. Data Fetching 📡
In Next.js Server Components, fetching data is simple. You can make the component async.
AI Mentor
Confused about "Next.js framework, App Router, Server vs Client Components, and SSR"? Ask our AI mentor for a simplified explanation.
Quiz
Quiz
Question 1 of 4How do you create a route for '/about' in Next.js?
Key Takeaways
✅ Next.js uses the file system for routing.
✅ Server Components are default and fast.
✅ Use "use client" for interactivity.
✅ Async Components make data fetching easy.
What's Next?
We know the basics. Now let's handle Dynamic Routes (like /product/123) and API Routes.
Keep coding! 🚀