just published part 2 of my React internals series , this one covers what actually happens when you call setState and how does re-rendering works. part 1 (initial render): https://lnkd.in/dycpqavw part 2 (re-render): https://lnkd.in/d4tWTwmk #react #javascript #frontend #webdev

Built two practical React features today: • Back to Top • URL Validation Solved on Namaste Dev Platform NamasteDev.com sir Akshay Saini 🚀 Focused on clean logic, reusable components, and real-world usability. Consistent small wins → long-term growth. #ReactJS #Frontend #JavaScript #WebDevelopment #LearningInPublic

React re-renders are like bad roommates: they show up uninvited, eat all your performance, and leave crumbs everywhere. Yes, you can optimize with hooks and memoization. Or you can just accept the chaos; and drink more coffee. Cheers. #frontend #react #javascript

The Complete React Guide (2026 Edition) offers a comprehensive roadmap for mastering the React ecosystem, covering everything from fundamental principles to expert-level architecture. Key topics include: - The declarative nature of the library - Utilization of the Virtual DOM - Essential JSX syntax for building components The guide also delves into intermediate subjects such as: - Advanced hooks - Global state management via the Context API or external libraries like Zustand - Robust testing strategies Additionally, it explores performance optimization techniques, including memoization and lazy loading, as well as modern server-side rendering with Next.js. This resource is invaluable for anyone looking to deepen their understanding of React. #ReactJS #WebDevelopment #Frontend #JavaScript #ReactServerComponents #errorsoverflow

react 19 has a new use() api and it breaks one of the oldest rules in react hooks must be called at the top level. always. no conditions, no loops. use() doesn't care. you can call it inside if statements, loops, conditionals - things that were never allowed before. it does two things: - reads a promise (integrates with suspense automatically) - reads context (like useContext, but more flexible) function UserCard({ userPromise }) { const user = use(userPromise); // suspends until resolved return <p>{user.name}</p>; } the catch? create your promises in server components and pass them down - not inside the client component itself, or you'll get an infinite loop on every re-render. it's a small api with a big mental shift. react is clearly moving toward a world where async is first-class - not something you bolt on with useEffect + useState + loading flags. #react #react19 #frontend #javascript #webdev

💡 Today I learned something that changed how I think about performance in React… I was working on a simple search input, and everything seemed fine… until I realized something Every single keystroke was triggering an API call That means: 👉 Too many requests 👉 Unnecessary load on the server 👉 A less smooth user experience That’s when I remembered 𝗱𝗲𝗯𝗼𝘂𝗻𝗰𝗶𝗻𝗴 Instead of calling the API on every key press, I added a small delay. Now, the function only runs when the user stops typing for a moment ✨ The result? Fewer API calls Better performance Cleaner and more efficient code Sometimes, it’s not about big changes… but small improvements that make a real difference Have you ever faced this kind of issue? 👇 #React #WebDevelopment #JavaScript #Frontend #Performance #LearningJourney

📌 Part 8 of 10: A lot of React bugs make more sense once you realize state behaves more like a snapshot than a live variable. That idea sounds small. But once it clicks, a lot of confusing behavior starts making more sense. Why logs can feel misleading. Why updates don’t look immediate. Why handlers sometimes “see” older values than people expect. Once I really understood that, I stopped fighting React as much. I started designing with it instead. What React concept took longer to click for you than expected? #React #ReactJS #StateManagement #JavaScript #FrontendDevelopment #Debugging #TypeScript

Built multiple projects with React, and one thing I’ve realized is performance isn’t just about code — it’s about the right tools. React gives flexibility with components, hooks, and rendering control. But when it comes to production-level optimization, Next.js adds that extra edge with SSR, SSG, routing, and built-in optimizations. Understanding where to use what makes the real difference 🚀 #React #NextJS #WebDevelopment #Frontend #Performance #JavaScript

Today (April 1, 2026) the team behind Vite announced an update regarding their vite-plus repository. They have made the repository private. According to their post, the source code will now be distributed exclusively through production sourcemaps. However, they clearly mentioned that this change does not affect their commitment to open source. Vite is widely used by developers to build modern web applications quickly and efficiently. The team behind it (VoidZero) continues to play an important role in the JavaScript ecosystem. This update has caught the attention of many in the developer community. What are your thoughts on this change? #Vite #JavaScript #WebDevelopment #OpenSource #Frontend

React performance is not just about fast code — it's about preventing unnecessary re-renders. Many developers focus on building features, but understanding why components re-render is what improves real application performance. Here’s a simple breakdown of: ✔ Why components re-render ✔ Common mistakes causing unnecessary renders ✔ How useMemo, useCallback, and React.memo help Small optimizations create big impact in production systems. What’s your favorite React performance optimization technique? #ReactJS #JavaScript #FrontendDevelopment #WebPerformance #SoftwareEngineering #ReactDeveloper #TechLeadership