CI/CD with GitHub Actions: Complete Guide

Build automated CI/CD pipelines with GitHub Actions. Automate testing and deployment workflows. Basic Workflow // .github/workflows/ci.yml name: CI on: [push, pull_request] jobs: test: runs-on: ubuntu-latest steps: – uses: actions/checkout@v4 – uses: actions/setup-node@v4 with: node-version: ’22’ – run: npm ci – run: npm test Deployment – name: Deploy if: github.ref == ‘refs/heads/main’ run: ./deploy.sh Conclusion GitHub … Read more

Redis 7: Data Structures and Caching Patterns

Master Redis 7 for caching and data structures. Learn advanced Redis patterns for modern applications. Data Structures Strings, Lists, Sets, Sorted Sets, Hashes, Streams Caching Patterns // Cache with TTL SET user:1:profile “data” EX 3600 // Cache invalidation DEL user:1:profile Redis Streams XADD events * user “john” action “login” XREAD COUNT 10 STREAMS events $ … Read more

PostgreSQL 16: New Features and Performance

Explore PostgreSQL 16’s new capabilities. Learn about the latest PostgreSQL release improvements. New Features ✅ Logical replication from standby ✅ Parallel queries improvement ✅ COPY command enhancement ✅ ICU collation support Performance Tuning — Enable parallel queries SET max_parallel_workers_per_gather = 4; — Monitor slow queries CREATE EXTENSION pg_stat_statements; JSONB Improvements SELECT data->>’name’ FROM users WHERE … Read more

GraphQL vs REST: When to Use Each

Compare GraphQL and REST for your API design. Choose the right approach for your project. REST API GET /api/users/1 GET /api/users/1/posts GET /api/users/1/followers GraphQL query { user(id: 1) { name posts { title } followers { name } } } When to Use REST ✅ Simple CRUD operations ✅ Caching is important ✅ Microservices When … Read more

Git Advanced: Rebase, Cherry-Pick, and Bisect

Master advanced Git commands for better workflow. Learn rebasing, cherry-picking, and debugging with Git. Interactive Rebase git rebase -i HEAD~3 // Pick, Squash, Reorder commits Cherry-Pick git cherry-pick abc123 // Apply specific commit to current branch Git Bisect git bisect start git bisect bad git bisect good abc123 git bisect run npm test Stash Advanced … Read more

Docker for Developers: Complete 2026 Guide

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

Next.js 15: App Router Mastery

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: Server Components and Actions

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

TypeScript 5.4: Complete Migration Guide

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: What’s New and How to Upgrade

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