Debounce vs Throttle: Boost App Performance

The apps that feel fastest aren't running the fastest code. They're optimistic. Optimistic UI: update the UI immediately, sync with the server in the background, roll back if it fails. Done right — apps feel native. Done wrong — users see confusing flickers and silent data loss. The correct pattern: → User triggers an action (like, follow, delete) → Immediately update local state — don't wait for the API → Fire the API call in the background → On success: do nothing — UI already shows the right state → On error: roll back to the previous state and show an error With TanStack Query, the pattern is: → onMutate: cancel in-flight queries, snapshot current state, update cache → onError: restore the snapshot, notify the user → onSettled: refetch to sync with server truth What to optimistically update: → Likes, follows, reactions — binary toggles with obvious rollback → Todo completion — instant checkbox response → List reordering — drag and drop must feel immediate → Soft deletes — remove from list right away What NOT to optimistically update: → Payments and financial transactions → Authentication actions → Anything with complex server-side validation that frequently fails → Anything irreversible with serious consequences The principle: Be optimistic about reversible, frequent, low-stakes actions. Be pessimistic about anything irreversible or financial. #Frontend #ReactJS #UX #WebDevelopment #JavaScript

🚀 Today I leveled up my React performance game ⚛️✨ Most UIs don’t feel slow because of logic… They feel slow because of how updates are scheduled 🧠💡 Today’s learning 👇 🚦 useTransition 👉 “Do urgent work first, heavy work later” ✍️ Typing stays instant 🧱 Heavy UI updates happen in background ⏳ isPending helps show loading state 💡 Perfect for: 🔎 Search filters | 📊 Charts | 📑 Tab switches 🕓 useDeferredValue 👉 “Let UI follow slowly” ⚡ Input updates instantly 🐢 Heavy UI uses a lagging value 🌿 Smooth experience even with big data 💡 Perfect for: 📚 Large lists | 🔎 Search results | 🧱 Expensive renders 🧠 Core Insight 🚨 Not all updates are equal 👉 Some are urgent (UX) 👉 Some are non-urgent (rendering) React lets us prioritize user experience first 💖 🎯 Simple Mental Model 🚦 useTransition → delay the update 🕓 useDeferredValue → delay the value 💥 Real takeaway If your app feels laggy… ❌ Don’t just optimize code ✅ Optimize when things happen #ReactJS ⚛️ #Frontend #WebDevelopment #Performance #LearnInPublic 🚀

241 package downloads in, and developers are already building real UI's with it. Here's everything I learned. I published a deep-dive on my blog at gwan.dev — a complete guide on pairing GWAN Design System with React Hook Form and Zod for bulletproof form validations. If you've ever written the same error state logic five times across five different inputs, this one's for you. What the article covers: → Setting up Zod schemas with TypeScript inference — write your validation once, get types for free → Wiring react-hook-form's register and formState directly into GWAN's Input, Checkbox, Select, and TextArea components → Displaying inline validation errors that respect GWAN's design tokens — consistent look across your entire app → Real-world patterns: async validation, dependent fields, and multi-step forms → How GWAN's controlled component API makes RHF integration feel native, not bolted on Why this stack works so well together: Zod gives you a single source of truth for your data shape. React Hook Form gives you performance. GWAN gives you the UI. None of them fight each other — they compose cleanly. The result is form code that's readable, maintainable, and looks good out of the box. 📖 Read the full guide: https://lnkd.in/gAnmSnRB 📦 Install GWAN: npm install gwan-design-system ⭐ 241 downloads and growing — thank you to everyone who's already using it. If you've built something with GWAN, I'd genuinely love to hear about it in the comments. If you like to contribute, I welcome your ideas in PRs. If you find the article useful, a share goes a long way for an indie open source project. 🙏 #ReactJS #NextJS #TypeScript #ReactHookForm #Zod #FormValidation #OpenSource #DesignSystem #WebDevelopment #FrontendEngineering #TailwindCSS

Every time I typed in my search bar, my app started lagging… I was building a 𝐆𝐨𝐨𝐠𝐥𝐞 𝐒𝐞𝐚𝐫𝐜𝐡 𝐂𝐥𝐨𝐧𝐞, and something felt off. • ⚠️ Input wasn’t smooth • ⚠️ Results were flickering • ⚠️ Experience felt unstable At first, I suspected a rendering issue. But after digging deeper, I found the real problem 👇 👉 𝐀𝐏𝐈 𝐰𝐚𝐬 𝐛𝐞𝐢𝐧𝐠 𝐭𝐫𝐢𝐠𝐠𝐞𝐫𝐞𝐝 𝐨𝐧 𝐞𝐯𝐞𝐫𝐲 𝐤𝐞𝐲𝐬𝐭𝐫𝐨𝐤𝐞 Typing “react”? That’s 4–5 API calls instantly ⚡ No pause. Just continuous requests. 🔧 𝐖𝐡𝐚𝐭 𝐈 𝐜𝐡𝐚𝐧𝐠𝐞𝐝: ✅ Added Debouncing → API triggers only after the user pauses typing ✅ Reduced unnecessary state updates → Cleaner state = fewer re-renders 🚀 𝐑𝐞𝐬𝐮𝐥𝐭: ✔️ Smooth typing experience ✔️ Controlled API calls ✔️ Noticeably better performance 💡 𝐓𝐚𝐤𝐞𝐚𝐰𝐚𝐲: Performance issues are often not complex— it’s about handling the fundamentals well. Controlling when something runs can completely change how the product feels. 👉 𝐒𝐦𝐚𝐥𝐥 𝐟𝐢𝐱. 𝐑𝐞𝐚𝐥 𝐢𝐦𝐩𝐚𝐜𝐭. If you’re building a search feature, don’t overlook 𝐃𝐞𝐛𝐨𝐮𝐧𝐜𝐢𝐧𝐠—it directly improves both performance + UX. Have you faced similar issues while building real-time features? 👇 #ReactJS #FrontendDevelopment #JavaScript #WebPerformance #LearningInPublic

𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗥𝗲𝗮𝗰𝘁 𝗳𝗼𝗿 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 React starts simple. Real apps get hard. You need more than components and props. You need a plan for scale. Keep one source of truth. Do not store the same data twice. Calculate values from your state. - Task counts - Progress bars - Filtered lists This stops bugs. Put state in the right place. Global state: - User data - Theme - API data Local state: - Form inputs - Modal toggles - Hover states Stop using useEffect for everything. Use it for synchronization. - Local storage - API calls - Browser events Put action logic in event handlers. Use Context for data many components need. - Auth status - Language - Theme settings Do not use it for everything. It causes slow renders. Production apps need good UX. - Add toast notifications. - Give users undo buttons. - Use semantic HTML. - Add keyboard support. Pick tools for real problems. - UI: MUI - State: Zustand - Data: TanStack Query - Forms: React Hook Form - Motion: Framer Motion Build interfaces for everyone. Accessibility is a requirement. Source: https://lnkd.in/d_9cJ2i5

🚆 Day 8 of #100DaysOfCode — React Notification System Today I built a React-based Train Booking UI with a dynamic notification system that responds to user actions in real time. 🌐 Live Demo: https://lnkd.in/guFw3yhK 🔗 GitHub Repo: https://lnkd.in/gxqHGn8d 🔔 When users click “Book Now”, they instantly get feedback based on train availability — making the experience more interactive and user-friendly. ✨ Key Features: ✅ Reusable components (Navbar, Button, TrainCard) ✅ Dynamic notification system (Success, Warning, Error, Info) ✅ Conditional rendering using React ✅ Clean UI with Tailwind CSS ✅ State management using useState 💡 What I learned: How to pass functions as props Handling user events efficiently Managing UI state for real-time feedback Building reusable and scalable components 🚀 This project helped me understand how real-world apps give instant feedback to users — a small feature that makes a big impact on UX. #React #JavaScript #FrontendDevelopment #WebDevelopment #100DaysOfCode #ReactJS #CodingChallenge #TailwindCSS #UIUX #GitHubProjects #ReactNotifications #Props #PropsNotification #Entri #EntriElevate Grateful for the guidance and support from my mentor Lakshmi Narasimhan

Whether you're building a complex dashboard or a simple search bar, UI jank is the ultimate vibe-killer. If you've ever felt like your app was "stuttering" because a heavy UI update was fighting with user input, useDeferredValue is about to become your new best friend. Here’s the breakdown of why this hook is a game-changer for React performance. 🚀 💡 The Problem: Blocking the Main Thread Normally, React updates are urgent. If a user types into an input and that input triggers a massive re-render (like filtering a list of 10,000 items), the typing feels "laggy" because React is too busy rendering the list to handle the keystrokes. ✨ The Solution: useDeferredValue This hook allows you to mark a piece of state as non-urgent. It tells React: "Hey, keep the input feeling snappy. Update the heavy UI when you have a spare moment." 🛠️ How it works: 1. React updates the "urgent" state (the input text) immediately. 2. It then attempts to render the "deferred" value in the background. 3. If the user types again before the background render finishes, React interrupts the old render and starts over with the new value. ⚡ When to use it? Expensive Re-renders: When a part of your UI is slow to render and there's no way to further optimize the component itself. Search/Filtering: Keeping the search input responsive while the results list "catches up." Third-party integrations: When you're passing data to a library that you don't have performance control over. Pro-Tip: For the best UX, pair it with React.memo on the component receiving the deferred value. This ensures the component only re-renders when the deferred value actually changes! Have you made the switch from traditional debouncing to useDeferredValue yet? Let’s talk about it in the comments! 👇 #ReactJS #WebDevelopment #Frontend #JavaScript #CodingTips #React18 #SoftwareEngineering

Most developers rely on generic templates for their portfolios. I chose a different path. Over the past few days, I built my new portfolio completely from scratch. As a Full-Stack AI Engineer, I always tell my clients that performance, architecture, and UI/UX are non-negotiable. My own website had to reflect that same standard. No bloated code. No generic themes. Just pure performance. Tech Stack: ⚡ Next.js 15 (App Router) 🎨 Tailwind CSS v4 (Custom Dark Theme) ✨ GSAP & Lenis (Buttery-smooth scrolling experience) The result? ✔️ 100/100 Lighthouse score ✔️ Instant page transitions ✔️ A premium, Awwwards-level experience designed to convert Check out the short screen recording below to see it in action 👇 If you want to experience the smoothness yourself, the live link is in my Featured section. Curious to hear your thoughts: What’s one must-have feature for a modern developer portfolio? 💬 Drop your opinion below

Just discovered an amazing resource for developers! If you're into frontend or full-stack development, you should definitely check out Uiverse 👉 https://uiverse.io/ It’s a collection of beautifully crafted UI components built using HTML, CSS, and JavaScript — perfect for: ✨ Getting design inspiration ✨ Speeding up your development workflow ✨ Exploring creative UI patterns Whether you're building from scratch or just need a quick idea to elevate your project, this platform is a goldmine. Highly recommended for developers who love clean, modern UI 👨💻🔥 #WebDevelopment #FullStack #Frontend #UIUX #JavaScript #Developers #Coding #Inspiration

🎯 From a Simple Idea to a Smarter Game Experience What started as a basic “Guess the Number” game turned into an interesting challenge — 👉 How do you make a simple logic feel engaging, interactive, and user-friendly? Instead of stopping at just “Too High / Too Low”, I focused on improving the experience. 💡 I asked myself: How can I guide the user instead of making them guess blindly? That led me to build: 🔹 Multiple difficulty levels with dynamic ranges 🔹 A timer-based challenge to add pressure ⏱ 🔹 A smart hint system (range narrowing + “Very Close” feedback) 🔹 Bonus logic-based hints (Even/Odd after multiple attempts) 🔹 Score tracking to encourage better performance 🏆 🔹 Clean, responsive UI with Dark Mode 🌙 What I realized while building this: It’s not just about writing logic — it’s about designing how users interact with that logic. This project helped me think beyond code and focus on: ✨ User experience ✨ Real-time feedback systems ✨ Writing scalable and structured frontend logic 🔗 Live Demo: https://lnkd.in/dQ_48trb 🔗 Github Repository: https://lnkd.in/dtgmC67b Still improving it — would love your feedback! 😊 #WebDevelopment #Frontend #JavaScript #UIUX #Projects #BuildInPublic