Contents of React Interview Questions

Comprehensive collection of React interview questions and answers covering hooks, components, state management, and best practices.

How to integrate Server Components into existing React apps?

Integrating Server Components depends on your tech stack, but generally, here’s the path:

1. Use a framework that supports Server Components

As of now, Next.js (from version 13 and above) offers the best support for Server Components, using the /app directory and server/client conventions.

2. Mark Components as Client or Server

By default, components are Server Components. To create a Client Component (for interactive parts), add a 'use client'; directive at the top of the file.

Example:

// This is a Server Component (default) export default async function ProductsList() { const products = await fetchProductsFromDB(); return <div>{products.map(p => <div key={p.id}>{p.name}</div>)}</div>; } // Client Component 'use client'; export default function Button() { return <button onClick={() => alert('Clicked!')}>Click me</button>; }

3. Mix Client and Server Components

You can render Client Components inside Server Components but not the other way around.

4. Update your data-fetching and routing

Server Components allow you to fetch data right inside components without useEffect, simplifying a lot of logic.