Node.js Event Loop Explained

🔥 I wasted HOURS writing the same 15 lines of fetch logic in every React component. So I fixed it. Permanently. Introducing `useFetch` — a 3KB TypeScript hook that handles: ✅ Auto-caching (no more duplicate API calls) ✅ Request cancellation (zero memory leaks) ✅ Full TypeScript generics ✅ Loading & error states out of the box The best part? ZERO dependencies. 👨💻 Built with React + TypeScript. Open-sourced with full documentation. [Insert your Carbon.sh comparison image here] Fellow React devs — what's ONE boilerplate pattern you're tired of writing? 👇 Drop a comment. Let's build better tools together. #ReactJS #OpenSource #FrontendDevelopment #TypeScript #WebDev

Full-stack TypeScript with tRPC is one of those stacks that just clicks. You define your backend procedures once, infer types on the client automatically, and remove a huge class of API bugs without generating clients or maintaining duplicate schemas. Why it’s powerful: - End-to-end type safety from server to frontend - Autocomplete everywhere - Safer refactors - Faster development with less glue code - Great fit for modern TypeScript apps What I like most about tRPC is that it keeps the developer experience simple: - No handwritten API contracts - No codegen step - No guessing what the backend returns - Just TypeScript, shared across the stack It’s especially compelling for teams building quickly with: - React / Next.js - Node.js backends - Zod for validation - Prisma or other typed data layers Type safety won’t replace good architecture, but it does remove friction and boosts confidence when shipping. If you’re already all-in on TypeScript, tRPC is worth a serious look. #TypeScript #tRPC #FullStack #WebDevelopment #DX #Nextjs #React #Nodejs #SoftwareEngineering #WebDevelopment #TypeScript #Frontend #JavaScript

🚀 Understanding Node.js Internals: Event Loop & Thread Pool This week, I took a deeper dive into how Node.js actually works behind the scenes — and it completely changed how I think about asynchronous code. 🔹 JavaScript in Node.js runs on a single thread 🔹 Yet it handles multiple tasks efficiently using the Event Loop 🔹 Heavy operations are offloaded to the Thread Pool (via libuv) Some key takeaways: Event Loop manages execution in phases (Timers, I/O, setImmediate, etc.) setTimeout(0) is not truly immediate setImmediate() behaves differently inside vs outside I/O process.nextTick() runs before the event loop even starts Understanding these concepts makes async behavior much more predictable and helps write better backend code. Would love to hear your thoughts or corrections 🙌! Blog Link : https://lnkd.in/gxBA4DeT #JavaScript #WebDev #LearnInPublic #Blog #libuv #EventLoop #ThreadPool #ChaiCode Thanks to Hitesh Choudhary, Piyush Garg, Jay Kadlag, Akash Kadlag for guidance 😊

Node.js vs NestJS — Which should you pick in 2026? 🔥 Both are powerful. Both run JavaScript on the server. But they serve very different purposes. Here's a quick breakdown 👇 🟢 Node.js → Raw, flexible, minimal. You build the rules. 🩷 NestJS → Structured, opinionated, enterprise-ready. → Same runtime. Completely different experience. If you're building a quick API or a real-time tool → go with Node.js. If you're building something that needs to survive a growing team → NestJS is worth the learning curve. Which one are you using right now? Drop it below 👇 #NodeJS #NestJS #JavaScript #TypeScript #BackendDevelopment #WebDev #SoftwareEngineering #100DaysOfCode

As a full stack developer, one question I kept seeing was: GraphQL or REST? So I broke it down properly. I just published my first technical article: GraphQL vs REST: A Practical Comparison for Full Stack Developers In it I cover: - What REST is and where it struggles - What GraphQL is and how it solves over-fetching and under-fetching - A real-world scenario showing both side by side - When to use each one in production If you're a developer who has ever made 3 API calls just to render one screen, this one is for you. Read it here: https://lnkd.in/eHBrPYxG #GraphQL #REST #WebDevelopment #FullStack #JavaScript #TechnicalWriting #NodeJS #React #SoftwareEngineering

Node.js isn’t just a backend runtime — it’s a mindset shift in how we build scalable systems 🚀 Traditional servers handle requests one by one. Node.js handles thousands — without breaking a sweat. Why? 👉 Non-blocking, event-driven architecture 👉 Single-threaded but highly efficient 👉 Perfect for real-time applications (chat, streaming, APIs) 👉 Lightweight yet powerful ecosystem (npm) But here’s where most people get it wrong: Node.js is fast… ❌ Not because of magic ✅ Because of how you design your application If you block the event loop, you lose its power. If you write inefficient async code, performance drops. The real skill in Node.js is: ⚡ Writing clean async logic ⚡ Managing concurrency smartly ⚡ Designing for scalability from day one In modern backend systems, speed is not optional — it’s expected. And Node.js, when used right, delivers exactly that. #NodeJS #Backend #SystemDesign #ScalableSystems #JavaScript #TechInsights #WebDevelopment

Node.js is becoming more powerful with every release. A lot of developers still think of Node.js as just Express + APIs. But recent versions have changed the game: ⚡ Native fetch() built-in ⚡ Stable test runner (node:test) ⚡ Better Web Streams support ⚡ Improved permission model ⚡ Faster runtime with newer V8 upgrades This means fewer third-party dependencies, better performance, and a cleaner developer experience. The biggest shift? Node.js is moving toward being a complete runtime, not just a backend tool. If you're still using older patterns from Node.js 14/16 days, it might be time to revisit the ecosystem. Modern Node.js feels very different. 🚀 #NodeJS #JavaScript #BackendDevelopment #WebDevelopment #SoftwareEngineering #Developers

One pattern that cleaned up my React projects a lot: Separate your concerns into three folders: 📁 types/ — all your TypeScript interfaces 📁 api/ — functions that hit your endpoints 📁 hooks/ — custom hooks that call the api functions Your components stay clean. Your logic is reusable. And when something breaks, you know exactly where to look. Small habit, big difference. #ReactJS #TypeScript #FrontendDevelopment #WebDev #CleanCode #JuniorDeveloper

Stop writing React like it's 2021. 🛑 The ecosystem has evolved. If you want a cleaner, more performant codebase, it is time to upgrade your patterns: 🔄 Data Fetching: useEffect ❌ TanStack Query ✅ 🧠 Global State: Context API ❌ Zustand ✅ 📝 Forms: useState / useRef spam ❌ React Hook Form / React 19 Actions ✅ ⚡ Performance: useMemo / useCallback ❌ React Compiler ✅ 🎨 Styling: CSS-in-JS / bloated SCSS ❌ Tailwind CSS ✅ 🛡️ Validation: Manual checks & any ❌ Zod + TypeScript ✅ Less boilerplate. Fewer unnecessary re-renders. Better developer experience. What is a tool or pattern you finally stopped using this year? 👇 #ReactJS #WebDevelopment #Frontend #TypeScript #TailwindCSS

📌 Pyramid of Doom (Callback Hell) A situation where multiple asynchronous callbacks are nested inside each other, creating a pyramid-like structure. ❌ Hard to read and understand ❌ Difficult to debug ❌ Poor error handling ❌ Not scalable as the project grows ✅ Use **Promises** to flatten the structure ✅ Prefer **Async/Await** for cleaner, readable code ✅ Handle errors properly with try/catch Clean code isn’t optional — it’s what makes your backend scalable. 🚀 🔖 Save this for later #javascript #developer #architect #nodejs #mern #mmdanish