Learn Docker from scratch for modern development. Containerize your applications for consistent environments. Docker Basics // Dockerfile FROM node:22-alpine WORKDIR /app COPY package*.json ./ RUN npm ci –only=production COPY . . EXPOSE 3000 CMD [“npm”, “start”] Commands docker build -t myapp . docker run -p 3000:3000 myapp docker-compose up Docker Compose services: app: build: . … Read more
Master the App Router in Next.js 15. Build modern web applications with the latest Next.js features. Layouts // app/layout.tsx export default function Layout({ children }) { return ( {children} ); } Server Actions async function createPost(formData) { ‘use server’; // Handle form submission } Streaming export default function Page() { return ( ); } Conclusion … Read more
React 19 introduces Server Components and Actions. Build faster apps with the latest React features. Server Components // app/page.tsx async function Page() { const data = await db.query(); return {data} ; } Actions async function submitForm(formData) { ‘use server’; await db.insert(formData); } New Hooks • useOptimistic • useFormStatus • useActionState Conclusion React 19 simplifies full-stack … Read more
Upgrade to TypeScript 5.4 for better type safety. Step-by-step guide to migrating your projects. New Features ✅ Improved narrowing ✅ NoInfer utility type ✅ Object.groupBy/map.groupBy Migration Steps npm install typescript@5.4 –save-dev npx tsc –init npx tsc –noEmit Common Issues • Update strict mode gradually • Fix type errors incrementally • Update declaration files Conclusion TypeScript … Read more
Node.js 22 brings exciting new features and improvements. Learn about the latest Node.js release and how to upgrade your projects. Major Features ✅ ES modules improvements ✅ Built-in test runner stable ✅ Performance improvements ✅ Updated dependencies Upgrading // Using nvm nvm install 22 nvm use 22 nvm alias default 22 New APIs // Native … Read more
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