Master programming syntax, solve interactive challenges & run live code in Syntaxis Explore Arena →
menu_book Course Curriculum (Next.js) expand_more
App Router Foundations
App Router project structure Server Components Client Components with use client Nested layouts Route groups Dynamic route segments Catch-all route segments Loading UI with loading.tsx
Data and Rendering
Server-side data fetching fetch cache control Revalidation with next revalidate generateStaticParams generateMetadata Streaming with Suspense Error boundaries with error.tsx notFound and not-found.tsx
Server Features
Route Handlers GET Route Handlers POST Server Actions Cookies API Headers API Redirects Middleware matcher Draft Mode
Production Patterns
next/image optimization next/font next/link prefetching Environment variables Parallel routes Intercepting routes Metadata Open Graph images Cache tags and revalidateTag
Next.js / App Router Foundations

Client Components with use client

Learn Client Components with use client in Next.js through a focused explanation, a topic-specific example, an engineering warning, and a mastery check.

12 min read • Beginner
nextjs-003.ts
typescript 
'use client';
import { useState } from 'react';
export default function Counter(){ const [count,setCount]=useState(0); return <button onClick={()=>setCount(count+1)}>{count}</button>; }
What to watch
Content source & attribution
Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

Client Components with use client Mastery Check →
← PREVIOUS
Server Components
NEXT →
Nested layouts