React UI Not Updating Due to Immutable State Issue

Most developers write try/catch in every single async function. There's a better way. I discovered the await-to-js pattern a while back, and it completely changed how I handle errors in Node.js and TypeScript. Instead of this mess: try { ... } catch(e) { console.log("error") } try { ... } catch(e) { console.log("error") } try { ... } catch(e) { console.log("error") } You write one tiny helper once, and every async call returns a clean [error, data] tuple. No nesting. No swallowed errors. No repeated boilerplate. The library is literally called await-to-js (npm). It has 3.5k stars. 400 bytes. Life-changing. If you're building any Node.js, Next.js, or backend API, add this to your utils file today. You'll wonder how you coded without it. 💬 Drop a comment if you use a different error handling pattern — always curious what others do. #JavaScript #NodeJS #CleanCode #WebDev #Programming #SoftwareEngineering #100DaysOfCode

Most React tutorials are still teaching 2020 patterns. In 2026, the ecosystem has shifted dramatically: React 19 is stable, the compiler handles most memoization automatically, and useEffect should be a last resort — not your go-to for data fetching, derived state, or event responses. This guide walks you from project setup to production-ready patterns, with a cheat sheet you can bookmark. #react #web #frontend #next #frontend #performance #javascript #tips #typescript #nextjs

React Query vs Fetch — my experience 🔹 What I was using I was using Fetch for API calls in my projects. It is simple, built-in, and easy to start with. 🔹 Issues I faced As the application started growing, I noticed some problems: writing loading & error logic in every component no caching (same API calling again and again) handling retries manually managing API state becoming messy code duplication in multiple places 🔹 Then I started using React Query I explored React Query to solve these issues. At first, it felt like extra setup, but after using it in real scenarios, it made things much easier. 🔹 Benefits I observed automatic caching built-in loading & error handling background refetching less duplicate API calls cleaner and more maintainable code 🔹 My current approach Fetch / Axios → for making API calls React Query → for managing server state Zustand / Redux → for client state Still learning and improving, but this shift really helped me write better frontend code. What approach are you using in your projects? 👇 #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript #ReactQuery #SoftwareEngineering #Coding #Developers #TechLearning #CleanCode

🛑 Stop making all your TypeScript interface properties optional. If you use TypeScript, you have probably been tempted to just slap a ? on a property to make the compiler stop yelling at you. id?: string; name?: string; We do this because a User in the database has an id, but a User being submitted in a registration form doesn't have an id yet. So we make it optional to share the same interface. This is a massive trap. 🪤 When you make properties optional, you are destroying your type safety. You will spend the rest of your app writing defensive code: if (user.id !== undefined) { ... }. The Fix: Strict Base Interfaces + Utility Types. ✨ Define your core interface as the absolute, strict truth (no optional fields unless they are truly optional). Then, let TypeScript do the heavy lifting using Omit and Pick. Why this wins: ✅ Zero Guesswork: If a function requires a UserCardProps, you know with 100% certainty that name and email will be there. No undefined checks needed. ✅ Single Source of Truth: If you add a new required property to your base User, your derived utility types automatically inherit it. ✅ Self-Documenting: Reading Omit<User, 'id'> instantly tells the next developer exactly what this object is meant for. Stop fighting the TypeScript compiler. Let Utility Types do the work for you. 🧠 Are you using Pick and Omit, or are you still living in the Optional wild west? 👇 #TypeScript #JavaScript #WebDevelopment #Frontend #ReactJS #CleanCode #SoftwareEngineering

Have you ever wondered what actually happens behind the scenes when you run 𝘯𝘰𝘥𝘦 𝘧𝘪𝘭𝘦𝘯𝘢𝘮𝘦.𝘫𝘴? I recently dived deep into Node.js internals as part of an assignment, and I’m excited to share two detailed blog posts that break it all down — from the core architecture to the exact execution flow. Blog 1: A Gentle Introduction to the Foundation of Node.js Architecture where I explained the three pillars that power everything: V8, LibUV, and the C++ Bindings. Read here: https://lnkd.in/gQcuwZMG Blog 2: Deep Dive into Node.js Architecture and Internal Workings This one walks you through, step by step, exactly what happens when you execute a JavaScript file with the node command. Read here: https://lnkd.in/gjqWb2sX I couldn’t get the video version ready on time (researching + writing these took priority, and my recording setup wasn’t prepared). But I will try to record + share the video! If you’re a developer who wants to truly understand what’s happening under the hood of Node.js, these are for you. Would love to hear your thoughts — have you explored V8 or LibUV before? Drop a comment below! Hitesh Choudhary Piyush Garg Akash Kadlag Anirudh J. Suraj Kumar Jha Chai Aur Code Jay Kadlag #Chaicode #Cohort #NodeJS #JavaScript #BackendDevelopment #WebDevelopment #NodeArchitecture #Programming #DevCommunity

🚨 I used index as key in React… …and spent HOURS debugging something that made no sense. Everything looked fine at first. Until I: → deleted an item → reordered the list 💥 Suddenly: ❌ Wrong data was displayed ❌ UI behaved randomly ❌ Bugs I couldn’t explain I kept checking my logic. Turns out… the bug wasn’t my logic. 👉 It was THIS: {data.map((item, index) => ( <div key={index}>{item.name}</div> ))}💡 Problem: React uses keys to track identity. When you use index: → identity = position ❌ → not the actual item So when the list changes… React gets confused 😵 ✅ Fix: {data.map((item) => ( <div key={item.id}>{item.name}</div> ))}👉 Stable key = stable UI 💡 Lesson: If your UI feels “random”… check your keys before your logic. Follow me for more such tips ✍️ 👨💻 #ReactJS #Frontend #JavaScript #SoftwareEngineering

🚀 Deep Dive into Node.js Internals I explored how Node.js actually works under the hood. Instead of just using APIs, I tried to understand the internal architecture and event loop mechanism that makes Node.js fast and non-blocking. 📚 Topics covered in my notes: Node.js Architecture V8 Engine and how JavaScript is executed Libuv and its role in asynchronous I/O Event Loop Phases Timers Pending Callbacks Polling (I/O) Check (setImmediate) Close Callbacks Difference between setTimeout() and setImmediate() Expired callbacks concept Thread Pool and background workers How callbacks move through the event loop To make the concepts easier to understand, I created structured visual notes and a complete PDF. 📄 Full Notes (Eraser workspace): https://lnkd.in/dQyBEFtE 📎 PDF attached in the post This deep dive helped me better understand why Node.js is single-threaded yet highly scalable. Special thanks to the amazing learning resources from #ChaiCode and Piyush Garg sir 🙌 #NodeJS #BackendDevelopment #JavaScript #EventLoop #SystemDesign #WebDevelopment #ChaiCode

The biggest mistake I made as a React developer... Early in my career, I thought "State Management" meant putting everything in Redux. I ended up with: ❌ Over-engineered boilerplate. ❌ Hard-to-debug data flows. ❌ Performance bottlenecks. The lesson? Keep it simple. Use Zustand for global state, React Query for server state, and local state for everything else. Don't use a sledgehammer to crack a nut. Architecture is about balance, not just using the "coolest" library. What’s one mistake you wish you could undo in your code? 😅 #ReactJS #CodingLife #WebDevTips #Redux #Zustand

React 19 just mass-deleted half your "optimization" code. And your app got faster because of it. ⚡ For years, React devs have been trained to do one thing — memoize everything. useMemo here. useCallback there. React.memo wrapping every component like bubble wrap. We called it "performance optimization." It was actually performance anxiety. 🧠 The real problem? Most useMemo and useCallback calls do absolutely nothing for performance. They add complexity. They make onboarding painful. And wrong dependency arrays silently break your app. ⚡ React 19 shipped a compiler. Not a plugin. A compiler that automatically figures out: → Which values need memoization → Which components should skip re-renders → Which callbacks are stable All at build time. Zero runtime cost. Zero developer effort. 🔥 Before vs After: React 18: useMemo, useCallback, React.memo everywhere. Dependency arrays at 2 AM. Bugs you can't trace. React 19: Write plain code. The compiler handles the rest. Same performance. Half the code. Zero mental overhead. 🎯 Why this matters: → Junior devs stop guessing where to put useMemo → Code reviews stop being memoization debates → Stale closure bugs just... disappear I removed 23 useMemo/useCallback hooks from one component last week. The diff was -67 lines. It went from "nobody wants to touch this" to "anyone can read this in 30 seconds." The best code isn't the most optimized code. It's the code your entire team ships confidently. React 19 didn't just remove boilerplate. It removed an entire category of bugs. Save this for your team ♻️ #react #javascript #frontend #webdevelopment #softwareengineering #react19 #ES6