Debounce vs Throttle in JavaScript

The "Future of Interfaces" just dropped. 🚀 Ex-React core dev Cheng Lou spent years "crawling through the depths of hell" to solve the web's oldest bottleneck: text measurement. Pretext (released 4 days ago) is a pure TypeScript algorithm that lets you layout entire pages without CSS or the DOM. 🔥 Bypass the DOM: Zero layout reflows and zero expensive DOM measurements. 🎯 Perfect Accuracy: Fast, comprehensive measurement for every language. 🏗️ Infrastructure Level: Render to Canvas, SVG, or Server-side with ease. 🤖 AI-Optimized: The foundational logic needed for next-gen agentic UIs. This isn't just a library—it’s the new foundation for high-performance UI engineering. GitHub: https://lnkd.in/dbxQpP4x #WebPerf #SoftwareEngineering #TypeScript #Innovation #Frontend #OpenSource

Interactive Form I’ve just implemented a dynamic "Get In Touch" section that prioritizes seamless user interaction and instant feedback. No page reloads—just smooth, intelligent form handling. ✈️ ✨ Key Features: 🔺 Real-Time Validation: Instant checks for name length, email formatting, and phone number accuracy as the user types. 🔺 Dynamic Feedback: Error messages appear and disappear automatically without refreshing the page. 🔺 Success Confirmations: Immediate confirmation once a message is successfully sent. 🔺 State-Driven UI: Custom CSS transitions that highlight invalid fields and provide clear status updates. Built with Vanilla JavaScript, HTML, and CSS. #WebDevelopment #JavaScript #UIUX #Frontend #Coding #CodvedaJourney #CodvedaExperience #FutureWithCodveda

A dashboard I worked on became slower over time. At first, we blamed the backend. It wasn’t the backend. Here’s what was happening 👇 Problem: → UI lag after filters → Slow rendering with large datasets Root cause: → Uncontrolled re-renders → Large lists rendered fully → Expensive computations repeated What I did: → Controlled render flow → Introduced list virtualization → Optimized heavy calculations Result: → Smooth UI → Faster interactions → Better UX Insight: Performance issues are rarely one big problem. They’re small inefficiencies at scale. #ReactJS #Performance #Frontend #SoftwareEngineering #CaseStudy #JavaScript #WebDevelopment #Engineering #Optimization #FrontendDeveloper

Race conditions are not just backend problems. They exist in your UI too. And they’re harder to notice. Here’s a real scenario 👇 User types fast in a search box: → Request A (slow) → Request B (fast) Response order: → B returns first → A returns later Now UI shows: ❌ Old data (A) instead of latest (B) No crash. Just wrong UI. Where this happens: ✖ Search inputs ✖ Filters ✖ Rapid navigation What works: ✔ Cancel previous requests (AbortController) ✔ Track latest request ID ✔ Use libraries that handle this (React Query) Key insight: UI correctness is not about rendering. It’s about timing. If you ignore race conditions… Your UI will lie to users. #ReactJS #Frontend #RaceCondition #JavaScript #SoftwareEngineering #Async #AdvancedReact #Engineering #WebDevelopment #Tech

Stop building "static" components. Build systems. 🏗️ Lately, I’ve been focusing on making my UI components more reusable and scalable. Instead of hardcoding values, I’m leaning into Tailwind Css, Next Js. My top 3 rules for a great UI component: 1️⃣ Consistency: Does it match the design system? 2️⃣ Performance: Is it bloated with unnecessary div nesting? 3️⃣ Empathy: Is it accessible for screen readers? #FrontEndDevelopment #ReactJS #CleanCode #WebDev

🎬 Introducing MovieSync: Personalized AI Movie Recommendations I’m pleased to share a project I’ve recently developed — MovieSync, a web application designed to deliver tailored movie recommendations through a seamless and high-performance user experience. 🔗 Live Demo: https://lnkd.in/gR7DWVgB 𝗞𝗲𝘆 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀: • Serverless backend architecture using Netlify Functions with secure API handling • Real-time movie discovery with detailed insights and personalized watchlist functionality • Optimized image delivery through proxy integration and CDN for enhanced performance • Clean, modern dark-themed UI with fully responsive design 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 𝗦𝘁𝗮𝗰𝗸: HTML5 | CSS3 | JavaScript | API Development This project strengthened my understanding of building scalable serverless applications, improving frontend performance, and designing user-centric interfaces for real-world use cases. I’d greatly appreciate any feedback or suggestions for improvement. #WebDevelopment #JavaScript #Serverless #APIDevelopment #FrontendDevelopment #SoftwareEngineering #BuildInPublic

🚀 𝗙𝗶𝘅𝗶𝗻𝗴 𝗥𝗲𝗮𝗰𝘁 𝗧𝗮𝗯𝗹𝗲 𝗟𝗮𝗴 𝗪𝗵𝗲𝗻 𝗨𝘀𝗲𝗿𝘀 𝗦𝗲𝗹𝗲𝗰𝘁 𝗠𝘂𝗹𝘁𝗶𝗽𝗹𝗲 𝗥𝗼𝘄𝘀 Recently worked on a performance issue where the React Table UI started lagging whenever users selected multiple rows. As the number of selected rows increased, the table became slow and less responsive. 🔍 𝗥𝗼𝗼𝘁 𝗖𝗮𝘂𝘀𝗲: Unnecessary re-renders of rows and table components Expensive state updates on every selection change Repeated calculations during row selection 💡 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗜𝗺𝗽𝗹𝗲𝗺𝗲𝗻𝘁𝗲𝗱: Optimized state management for row selection Used useMemo and useCallback to prevent redundant renders Applied component memoization for better rendering control Ensured only affected rows updated instead of the full table refresh ✅ 𝗥𝗲𝘀𝘂𝗹𝘁: Smooth multi-row selection Faster UI response time Better scalability for large datasets Improved overall user experience 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗼𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻 𝗶𝘀 𝗻𝗼𝘁 𝗷𝘂𝘀𝘁 𝗮𝗯𝗼𝘂𝘁 𝘀𝗽𝗲𝗲𝗱 — 𝗶𝘁’𝘀 𝗮𝗯𝗼𝘂𝘁 𝗰𝗿𝗲𝗮𝘁𝗶𝗻𝗴 𝗮 𝘀𝗲𝗮𝗺𝗹𝗲𝘀𝘀 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗳𝗼𝗿 𝘂𝘀𝗲𝗿𝘀. ⚡ #ReactJS #FrontendDevelopment #PerformanceOptimization #JavaScript #WebDevelopment #ReactTable #UIUX #CodingJourney

Shipped a few performance improvements this week. Started from one important part: the critical rendering path. I thought: if I don’t know what blocks first paint, I'm optimizing blindly. ✅ Code splitting - Removed non-critical UI (dialogs, popovers, interaction-only components) from the initial bundle and lazy loaded them. ✅ Network requests Audited every fetch with two questions: → Does this need to happen now? → Does it need to happen this often? - Found a Stripe call firing on every popover open. The response is stable within a session → now fetched once and reused. - Replaced fixed polling with exponential backoff for async processes. Same outcome, fewer requests. ✅ Skeleton screens: They don’t make data faster, but they improve perceived performance and reduce drop-off. #webperformance #frontend #reactjs #nextjs #performance #ux #developers #softwareengineering #buildinpublic #webengineering #webdevelopment #javascript #webdev --- I post about web engineering, front-end and soft skills in development. Follow me here: Irene Tomaini

One of the most valuable lessons I learned today 👇 Never let a component grow beyond 500 lines. Once it starts getting too big, it becomes harder to understand, debug, and maintain. The solution? Break it down into smaller, reusable components using the Atomic Design approach. Start thinking in levels: - Atoms → basic UI elements (buttons, inputs) - Molecules → small combinations of atoms - Organisms → more complex UI sections - Templates & Pages → complete layouts This approach keeps your code clean, scalable, and easy to manage. Good code isn’t just about making things work , it’s about making them maintainable and future-proof. #WebDevelopment #ReactJS #CleanCode #Frontend #SoftwareEngineering #AtomicDesign

𝐋𝐞𝐯𝐞𝐥𝐢𝐧𝐠 𝐔𝐩 𝐭𝐡𝐫𝐨𝐮𝐠𝐡 𝐎𝐩𝐞𝐧 𝐒𝐨𝐮𝐫𝐜𝐞: 𝐁𝐞𝐲𝐨𝐧𝐝 𝐏𝐞𝐫𝐬𝐨𝐧𝐚𝐥 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 In an era where AI can generate boilerplate code in seconds, building standalone projects is no longer enough to demonstrate true engineering expertise. The real challenge lies in contributing to existing, production-grade codebases that require strict adherence to performance, accessibility (A11y), and collaboration standards. Last month, I dedicated my time to the Open Source ecosystem. I'm proud to share that 100% of my Pull Requests were merged across various high-quality projects, with zero rejections. Key highlights of my contributions: - Performance Optimization: Identified and fixed an infinite re-render loop in complex animations by migrating logic to CSS, significantly improving Core Web Vitals and eliminating CPU overhead. - Advanced Accessibility (A11y): Implemented "Skip-to-Content" links and refactored navigation structures to resolve "Keyboard Navigation Fatigue." I also focused on heading hierarchies and ensuring action icons are accessible on focus. - Responsive UX/UI: Resolved layout overflows and improved search bar fluidity across tricky breakpoints, ensuring critical data remains legible on small screens without truncation. Excited to keep building and contributing to the web standards I believe in. Onwards! #OpenSource #Frontend #ReactJS #NextJS #WebDevelopment #Accessibility #SoftwareEngineering #CleanCode