React Tip: Avoid Inline Functions as Props Passing inline arrow functions as props creates a new function on every render. This changes the reference and forces child components to re-render — even when nothing actually changed. In small apps it’s fine. In scalable apps, it hurts performance. Use useCallback or memoization where needed. React performance is often about reference identity — not heavy logic. #ReactJS #ReactDeveloper #FrontendDevelopment #JavaScript #WebPerformance #CleanCode #FrontendArchitecture #ScalableApps #SoftwareEngineering #TechLeadership #ProgrammingCommunity #DevLife #CodingTips #activebirdssolutions #ActiveBirdsSolutions

Most React developers have used hooks for years but have never used useDebugValue. That’s a mistake. useDebugValue is not for your app. It’s for your future self. When you open React DevTools and inspect a component that uses a custom hook, you usually see… nothing useful. Just: useCustomHook() With useDebugValue, you can turn that into: useAuth → Logged In useFetch → Loading useCart → 3 items This hook doesn’t affect UI. It doesn’t affect performance. It affects how fast you understand your own code. Here’s the unique part 👇 useDebugValue is documentation that never goes out of sync. Instead of comments or README files, the hook explains itself while you debug. In complex apps, this saves minutes per bug. Over months, it saves days. If you write custom hooks and care about maintainability, useDebugValue is a quiet superpower worth using. #React #Frontend #Debugging #JavaScript #CleanCode #LearningInPublic

Most React developers make these 5 mistakes that slow down their app without realising it. 1. Not memoizing components properly Re-rendering components that don't need to re-render is the #1 performance killer. Use React.memo and useMemo where it actually matters — not everywhere. 2. Putting everything in one component A 500-line component is not a component. It's a problem. Break it down. Your future self will thank you. 3. Ignoring lazy loading If you're not code-splitting with React.lazy() and Suspense, you're loading everything upfront. Your users feel that. 4. Skipping key props in lists Using index as key is not the same as using a unique ID. It causes subtle, hard-to-debug UI bugs. 5. Not cleaning up useEffect Memory leaks happen silently. Always return a cleanup function when subscribing to events or timers. Save this post. Your next React project will be cleaner for it. Which one are you guilty of, let me know in the comments. #ReactJS #FrontendDevelopment #WebDevelopment #ReactTips #NextJS #JavaScript #FrontendDev

React 19 Suspense can accidentally slow down your app. Most developers don’t notice it. This pattern looks harmless: const user = use(getUser()); const posts = use(getPosts(user.id)); But it creates a hidden problem. `getPosts()` can't start until `getUser()` finishes. So your requests run 𝘀𝗲𝗾𝘂𝗲𝗻𝘁𝗶𝗮𝗹𝗹𝘆 instead of parallel. That’s called a request waterfall. And it quietly slows down your page. The fix is simple: Start requests early. Then read them later with `use()`. (visual explanation below 👇) Suspense isn’t just about loading states. It’s about 𝗰𝗼𝗻𝘁𝗿𝗼𝗹𝗹𝗶𝗻𝗴 𝗮𝘀𝘆𝗻𝗰 𝗳𝗹𝗼𝘄. Have you started using `use()` with Suspense yet? #React #React19 #Frontend #JavaScript #WebDevelopment

React 19 Suspense can accidentally slow down your app. Most developers don’t notice it. This pattern looks harmless: const user = use(getUser()); const posts = use(getPosts(user.id)); But it creates a hidden problem. `getPosts()` can't start until `getUser()` finishes. So your requests run 𝘀𝗲𝗾𝘂𝗲𝗻𝘁𝗶𝗮𝗹𝗹𝘆 instead of parallel. That’s called a request waterfall. And it quietly slows down your page. The fix is simple: Start requests early. Then read them later with `use()`. (visual explanation below 👇) Suspense isn’t just about loading states. It’s about 𝗰𝗼𝗻𝘁𝗿𝗼𝗹𝗹𝗶𝗻𝗴 𝗮𝘀𝘆𝗻𝗰 𝗳𝗹𝗼𝘄. Have you started using `use()` with Suspense yet? #React #React19 #Frontend #JavaScript #WebDevelopment

Your React app isn’t slow. It’s overweight. We once reduced a production bundle by ~35%. No new framework. No rewrite. No magic. Just… removing what we didn’t need. The real problem? We install fast. We import blindly. We ship everything. Users download: • Unused components • Entire utility libraries • Dead code • Duplicate dependencies And then we blame React. ⚡ What actually helped: • Tree shaking (ESM imports only) • Importing specific functions, not whole libraries • Dynamic imports / code splitting • Removing unused deps • Analyzing bundle with a visualizer • Avoiding heavy UI libraries where not needed Performance isn’t about writing faster code. It’s about shipping less code. 💡 Brutal truth: If you’ve never opened your bundle analyzer… You don’t know what you’re shipping. When was the last time you checked your bundle size? 👀 #reactjs #webperformance #frontenddevelopment #javascript #softwareengineering #performance #bundlesize #treeShaking #webdev #techcareers #reactjs #frontenddevelopment #javascriptdeveloper #reactdeveloper #webdevelopment #softwareengineering #codingtips #devcommunity #techcareers #learnreact

Just published my first npm package: av-toastx I built av-toastx, a lightweight and customizable React toast notification library designed to make showing notifications in React apps simple and clean. 🔔 Features • Lightweight and fast • Simple React hook API • Multiple toast notifications support • Easy integration with any React project • Clean and customizable UI 🔗 Check it out on npm https://lnkd.in/gZcuk-29 This is my first step into building and publishing open-source tools for developers. I'm excited to keep improving it and adding more features. If you're building React apps and need a simple toast notification system, give it a try 🙌 Feedback, suggestions, and contributions are welcome! #opensource #reactjs #javascript #webdevelopment #npm #frontend #buildinpublic

A recent React project I worked on felt slow… and users were dropping off. ⚛️ Instead of rewriting everything, I focused on small optimizations: • Reduced bundle size • Added lazy loading • Improved overall performance The result? 45% faster load time. That’s when it hit me: Small optimizations = big impact. Are you optimizing your React app or just building features? 👇 #ReactJS #WebPerformance #FrontendDevelopment #JavaScript #MERNStack

Everyone's talking about WebAssembly for compute-heavy web apps — real-world use cases. But most are missing the point. It's not about the technology. It's about the problem it solves. The best engineers I've worked with don't chase trends. They deeply understand the problem space and pick the right tool. Sometimes that's the latest framework. Sometimes it's a bash script. Do you agree? Or am I wrong? We made a song about it! Listen here: https://lnkd.in/g_eUKy_a #AIMusic #AIBuddy #TechVibes #WebDevelopment #TypeScript #Frontend #JavaScript

Most React apps start with a clean-looking structure: components/, hooks/, utils/, services/… …and then a few months later, every feature is scattered across 8 folders. That’s why I prefer feature-based folder structure for most real apps. Instead of organizing by file type, organize by business feature: features/auth features/products features/cart features/checkout Each feature can own its components, hooks, API calls, schemas, types, and tests. The biggest mistake to avoid: ❌ moving things to shared/ too early A lot of “shared” code is actually feature-coupled. Start inside the feature, then promote to shared/ only after real reuse appears. Rule of thumb: If a change touches one feature, your folder structure should make that obvious. #React #ReactJS #JavaScript #TypeScript #FrontendDevelopment #WebDevelopment #SoftwareArchitecture #FrontendArchitecture #CodeOrganization #CleanCode #SoftwareEngineering #DeveloperTips #ScalableApps #FolderStructure #ReactBestPractices