Slow frontend apps kill trust. 🛑 Before you rewrite, try these 3 tweaks I use to boost Vue.js performance: 1️⃣ Lazy Loading components 2️⃣ v-once for static content 3️⃣ ShallowRef for large datasets Keep it lean. Keep it fast. ⚡️ #VueJS #WebPerformance #CodingTips
Boost Vue.js Performance with 3 Tweaks
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Slow frontend apps kill user trust. 🛑 If your Vue.js application feels sluggish, don't reach for a rewrite yet. Often, the biggest wins come from these 3 tweaks: 1️⃣ Lazy Loading Components: Shrink your bundle size. 2️⃣ v-once for Static Content: Skip unnecessary update cycles. 3️⃣ ShallowRef for Large Datasets: Save memory on complex lists. Keep it lean. Keep it fast. ⚡️ #VueJS #WebPerformance #FrontendDev #CodingTips
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🚀 Just launched: react-state-vitals A zero-config memory & render monitor for React apps. While working on production apps, I kept asking: 👉 Why is this component re-rendering so much? 👉 Which store is growing in memory? 👉 Where is my performance actually going? So I built a tool to make this visible — instantly. 🧠 react-state-vitals gives you a live floating panel in development: • 📊 Store size tracking (Zustand, Context, React Query) • 🔁 Re-render counts per component • 🧬 JS heap usage insights • ⚡ Zero setup — just install and see Think of it as: 👉 “Vitals for your React state & memory” 📦 Try it here: https://lnkd.in/gU692hyT 🔥 Next I’m planning: • DevTools-like overlay • Identify memory-heavy components in real time • Visual performance timeline Would love feedback from fellow devs 🙌 What would you want this to track next? #React #JavaScript #Frontend #WebPerformance #OpenSource #NextJS #Zustand
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⚠️ Your React App Isn’t Slow… You’re Just Rendering Too Much. I used to think UI lag was normal as my React projects grew. Turns out — I was wrong. The real problem? 👉 Unnecessary re-renders killing performance. Here’s what I changed: • Used React.memo to stop useless re-renders • Avoided redundant state updates • Fixed messy useEffect dependencies • Broke large components into smaller reusable pieces And the impact? • Faster UI • Better performance • Cleaner codebase Biggest lesson: React doesn’t slow down — poor optimization does. Now I’m more focused on how components render, not just what they render. #reactjs #webdevelopment #mernstack #frontend #performance #javascript
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React is slow. At least, that’s what people say when their app starts lagging. But in most cases… React isn’t the problem. Recently, I debugged a performance issue that appeared to be a “React bottleneck”. Turns out 👇 ▪️ Multiple forced reflows & repaints ▪️ Layout thrashing from DOM reads/writes ▪️ Unoptimized rendering triggered by side effects React was just doing its job. The browser was struggling. What actually helped: ✔️ Batching DOM operations properly ✔️ Avoiding layout-triggering CSS changes ✔️ Measuring before mutating (not the other way around) The takeaway: 🏆 If you don’t understand how the browser renders, every framework will feel “slow”. Have you ever blamed React for something that wasn’t actually React? #reactjs #frontend #webperformance #webdevelopment
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🧵 Day 5 of 40 — React System Design Series I used to wrap every function in useCallback. Every. Single. One. I thought that's what senior React devs did. Turns out I was making my app slower, not faster. Here's what I learned about useMemo, useCallback, and React.memo: → Memoisation has a cost — it's not free → The trio only works when all three are used together → The Profiler-first rule: measure before you memoize → Exactly when each one helps (and when it's just noise) Full breakdown with real TypeScript code 👇 https://lnkd.in/g5rcJ7qJ #ReactJS #SystemDesign #Frontend #LearningInPublic #WebDevelopment
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React is easy to start… But hard to master. At first, it’s just components and props. But then you realize the real game: 👉 State management 👉 Performance optimization 👉 Re-render control A small mistake in structure can slow down your entire app. What I’ve been focusing on: ✔ Writing reusable components ✔ Avoiding unnecessary re-renders ✔ Keeping logic clean and scalable Because good UI isn’t just about looks… It’s about performance + maintainability. #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #UIUX
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Today everything started to feel… more real. React Masterclass (Day 5). I began with: • Sharing state between components • Passing functions as props • Understanding how React handles state updates But instead of stopping there, I asked: How would this actually work in a real app? 💰 So I built a Budget Tracker: • Set initial balance • Add expenses that reduce it in real-time • Dynamic UI based on current state • Data persisted using localStorage • Clean updates using functional state 💡 Key concepts that clicked: • Lazy initialization (run logic only once) • Functional updates (state based on previous state) • Derived values (calculating remaining balance) Small concepts → Real product thinking. #React #Frontend #WebDevelopment #LearningInPublic #JavaScript
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🚀 Stop re-rendering your entire React app — here's why it's hurting you. One of the most common mistakes I see in React codebases is placing state too high in the component tree. When state lives at the top, every tiny update triggers a cascade of re-renders — even for components that don't care about that change. Here's what I do instead: ✅ Co-locate state — keep state as close to where it's used as possible. ✅ Use React.memo wisely — memoize components that receive stable props. ✅ Split context — separate frequently changing data from static config. ✅ Reach for useMemo & useCallback — but only when profiling confirms it helps. The result? A snappier UI, cleaner architecture, and fewer mysterious bugs. The React team built these tools for a reason — it's just about knowing when and where to apply them. 💬 What's your go-to trick for keeping React apps performant? Drop it in the comments — I'd love to learn from you! #React #WebDevelopment #Frontend #JavaScript #SoftwareEngineering
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⚡ Why Most React Apps Feel Slow (And How to Fix It) Many developers think performance issues come from React itself. But in reality — it’s usually how we use it. Here are some common mistakes 👇 🔴 Unnecessary Re-renders Components re-render more than they should. 👉 Use React.memo, useMemo, useCallback wisely. 🔴 Large Component Trees Everything in one component = performance drop. 👉 Split into smaller, reusable components. 🔴 Ignoring Lazy Loading Loading everything at once hurts UX. 👉 Use React.lazy() and dynamic imports. 🔴 Heavy State Management Too much global state = unnecessary updates. 👉 Keep state as local as possible. 🔴 No Virtualization Rendering long lists directly? Big mistake. 👉 Use libraries like react-window. 💡 Performance is not about optimization later — it’s about writing better code from the start. What’s the biggest performance issue you’ve faced in React? 👇 #ReactJS #Frontend #WebDevelopment #JavaScript #Performance
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🚀 Faced a tricky routing issue while moving from React.js to Next.js — and finally solved it. In React Router, getting dynamic params like: 👉 category 👉 subcategory 👉 brand was super straightforward. But in Next.js App Router, I was only getting: 👉 slug 👉 dynamicRoute This completely broke my product filtering logic. ⚠️ Problem: My API calls were no longer matching the correct category, subcategory, or brand. ✅ What I did: Re-structured route handling logic Normalized params from slug + dynamicRoute Built dynamic API endpoint mapping Optimized fetch calls (no unnecessary re-fetch) 💡 Key Learning: Next.js routing is powerful, but you must rethink how params are handled compared to React Router. 🎥 I made a short video explaining the problem and solution step by step. 🔗 Watch here: https://lnkd.in/gA4zGUFA 💻 Projects: https://lnkd.in/g-jJRjV2 #NextJS #ReactJS #WebDevelopment #Frontend #FullStack #JavaScript #Debugging #MERN #Developers #LearningInPublic
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