At some point, I realized most of the performance issues I was dealing with weren’t coming from complex logic… They were coming from images. Large, unoptimized images can easily become the biggest bottleneck in a Next.js app: → slower load times → layout shifts → poor user experience And the tricky part is — everything might still “look fine” at first glance. What changed things for me was starting to use the Next.js Image component properly. Not just as a replacement for <img />, but as a performance tool: → automatic image optimization → responsive sizing → lazy loading out of the box The result? Pages felt faster. Layouts became more stable. And I didn’t have to manually optimize every asset. Sometimes performance improvements don’t come from rewriting logic. They come from paying attention to the things we usually overlook. #nextjs #webperformance #frontend #reactjs

🚀From UI to Real-World Interaction — Instantly What if your app could generate & scan QR codes...without anyexternal tools? With Ext JS 8.0, it’s now built-in ✅Generate QR codes for payments, Wi-Fi, contacts & more ✅Scan and read data directly inside your app ✅Export as PNG, SVG, or Canvas ✅Copy instantly to clipboard ✅Fully customizable (colors, size, format No plugins. No complexity. Just powerful functionality. This is how modern enterprise apps should work. 👉 Explore the feature: https://lnkd.in/grGmsSxY #ExtJS #WebDevelopment #Frontend #JavaScript #DevTools #QRCode #Innovation

🚨 Your React app is re-rendering more than you think… And it might be slowing down your app without you realizing it. --- 💡 What is a re-render? A re-render happens when React updates a component’s UI. --- ⚡ What triggers it? • State changes • Props changes • Parent component re-renders Even a small change can cause multiple components to re-render. --- 😵 The problem: Unnecessary re-renders = ❌ Performance issues ❌ Slower UI ❌ Bad user experience --- 🚀 How to optimize it? 👉 React.memo Prevents re-render if props don’t change 👉 useMemo Memoizes expensive calculations 👉 useCallback Prevents function re-creation --- 💻 Example: const Child = React.memo(({ value }) => { console.log("Rendered"); return <div>{value}</div>; }); --- 🧠 Key takeaway: Not every re-render is bad. But unnecessary re-renders can hurt performance. --- Have you faced re-render issues in your apps? 👇 #React #Frontend #Performance #JavaScript #WebDevelopment

Typing in your React app… and it feels slow? 😵💫 Characters lag, UI stutters, and the experience just feels off. You’re not alone — this is a super common issue, especially in large forms or dashboards. 💡 The problem usually isn’t React itself… it’s how we handle state and re-renders. 𝗛𝗲𝗿𝗲’𝘀 𝘄𝗵𝗮𝘁’𝘀 𝗼𝗳𝘁𝗲𝗻 𝗰𝗮𝘂𝘀𝗶𝗻𝗴 𝘁𝗵𝗲 𝗹𝗮𝗴: 👉 Every keystroke triggers a re-render of the entire component 👉 Heavy computations running on each input change 👉 Unoptimized state updates 👉 Unnecessary API calls on every character 👉 Large component trees re-rendering repeatedly 🚀 𝗛𝗼𝘄 𝘁𝗼 𝗳𝗶𝘅 𝗶𝘁: ✔️ Use useCallback to prevent unnecessary function recreation ✔️ Memoize expensive calculations with useMemo ✔️ Split components to isolate re-renders ✔️ Debounce API calls instead of firing on every keystroke ✔️ Consider controlled vs uncontrolled inputs wisely ⚡ 𝗦𝗺𝗮𝗹𝗹 𝗼𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻𝘀 = 𝗠𝗮𝘀𝘀𝗶𝘃𝗲 𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗯𝗼𝗼𝘀𝘁 A smooth input field might seem small… but it directly impacts user experience, retention, and perception of your app. 💬 Have you ever faced input lag in React? What was the root cause in your case? #ReactJS #FrontendDevelopment #WebPerformance #JavaScript #UIUX #SoftwareEngineerin

Your Next.js app is slower than it should be — here's why.!! Most developers use lazy loading or eager loading. But there's a smarter middle ground — and it changed how I build with Next.js. Here's what I mean: ❌ *Eager loading* = everything loads upfront → huge initial bundle → slow app ❌ *Lazy loading* = loads only when clicked → user sees a spinner → bad experience ✅ *My approach* = Predictive preloading* I use `next/dynamic` with named exports and custom loading skeletons — but not just for code splitting. I preload components *invisibly* when the user hovers or scrolls near a navigation element. So by the time they click — it's already there. Instant. No spinner. The result? → Smaller initial bundle → Faster Time To Interactive (TTI) → Navigation that feels instant → Cleaner, maintainable code It's not lazy. It's not eager. It's *intentional.* If you're building with Next.js and haven't tried this — you're leaving performance on the table. Have you ever tried predictive preloading? Drop your thoughts below 👇 #NextJS #WebDevelopment #Frontend #JavaScript #TypeScript#

One thing I’ve learned while building my app: Good structure doesn’t matter at the beginning… but it matters a lot as your project grows. On the backend, I naturally structured things like this: → routes → schemas → services Each layer had a clear responsibility. Easy to scale. Easy to maintain. But on the frontend, I went with: → components → hooks → lib It felt clean at first. Until the app started growing (boards, pins, collaborators…). Working on a single feature meant jumping across multiple folders: components → hooks → lib Same feature… different places. That’s when I realized: I was structuring my backend by feature logic, but my frontend by file type. And that difference becomes very obvious at scale. So I’m now moving toward a more feature-based structure on the frontend: → grouping everything related to a feature in one place Not a full refactor yet, but the direction is clear. Key takeaway: You don’t really understand structure when starting a project, you understand it when the project starts growing. Curious how others approach this ….do you prefer feature-based or layer-based structure? #softwareengineering #webdevelopment #reactjs #nextjs #buildinpublic

Built a User Management App using Vanilla JavaScript! This project started as a simple CRUD app, but while building it, I focused on improving real-world functionality and clean logic. Key things I implemented: * Add, Edit, Delete users (with edit state handling) * Real-time search with debounce * LocalStorage persistence * Form validation * Toast notifications for better UX * Image fallback handling for broken links What I learned: Instead of just making it work, I focused on managing UI state properly (especially during editing), which gave me a deeper understanding of how real applications behave. 🔗 Live Demo: https://lnkd.in/gxEnaP-x 💻 GitHub Repo: https://lnkd.in/gRumXtRX Would love feedback and suggestions to improve further! #JavaScript #FrontendDevelopment #WebDevelopment #LearningInPublic 

🚀 I improved a React app’s performance by 40%… without adding any new library. ❌ No fancy tools ❌ No major refactor Just fixing small mistakes we usually ignore. Here’s what actually made the difference 👇 💡 Stopped unnecessary re-renders We were passing new object/array references on every render. 💡 Memoized expensive operations Filtering large datasets on every keystroke = bad UX. 💡 Split large Context into smaller ones One update was re-rendering the whole app. 💡 Fixed list keys (no more index as key) Subtle bugs disappeared instantly. 💡 Optimized imports Reduced bundle size by importing only what we needed. 📈 Result: ✔️ Faster UI ✔️ Better Lighthouse score ✔️ Smoother user experience Most performance issues aren’t “advanced problems”… They’re basic things done repeatedly at scale. 💬 Curious — what’s the biggest performance mistake you’ve seen in a React app? 🔖 Save this if you care about performance 🔁 Share with your team #ReactJS #FrontendDevelopment #WebPerformance #JavaScript #TypeScript #CleanCode #NextJS #AsadSaeed

🚨 Still structuring your Next.js routes like it’s 2022? If your folder structure is leaking into your URLs, you’re missing out on one of the cleanest features in Next.js: Route Groups. They let you organize your app by features, teams, or sections—without polluting your URL paths. That means: ✔️ Cleaner, user-friendly URLs ✔️ Better project organization ✔️ Easier scalability as your app grows ✔️ Flexible layouts without breaking routes Imagine keeping /about instead of /marketing/about while still organizing everything neatly behind the scenes. That’s the power. 💡 Pro tip: Use route groups for things like (auth), (dashboard), or (settings) to keep your codebase clean and maintainable. Start thinking structure-first, not URL-first. #NextJS #WebDevelopment #Frontend #ReactJS #CleanCode #SoftwareEngineering #DevTips

What happens to your user experience when a single component in your React app fails to render? By default, React will unmount the entire component tree if an error is thrown during the render phase. This means one small 'undefined' property in a sidebar can turn your entire application into a blank white screen. Handling errors smartly is about containment and graceful degradation. The core solution is the Error Boundary. Think of it as a 'try/catch' block but for your UI components. By using the 'getDerivedStateFromError' lifecycle method, you can catch crashes in child components and display a fallback UI instead of letting the whole app crash. The 'smart' part comes in how you place these boundaries. Wrapping your entire 'App' component is a safety net, but wrapping individual features, like a 'DashboardChart' or a 'UserFeed', is a strategy. If the chart fails, the user can still read their feed. This granular approach ensures that a failure in a non-critical part of the app doesn't block the user from performing their primary tasks. In modern functional codebases, most developers reach for the 'react-error-boundary' library. It allows you to use Error Boundaries without writing class components and provides a clean API for resetting the error state so users can 'Try Again' without a full page refresh. Pair this with a logging service like Sentry or LogRocket inside 'componentDidCatch', and you turn a silent crash into an actionable bug report. #ReactJS #SoftwareEngineering #WebDevelopment #ProgrammingTips #Javascript #FrontendArchitecture