React Effect Hooks: Timing Matters

Frontend Performance: What “Paint” Actually Means If you work with React or Next.js, you’ve probably heard terms like reflow, repaint, and Core Web Vitals. But under the hood, it all comes down to one simple thing: how often the browser has to recalculate layout or redraw pixels. When this happens too frequently, performance drops and the user experience suffers. Here’s the quick breakdown: Layout (Reflow) The browser recalculates where elements should sit. Triggered when you change things like width, margin, or add/remove DOM nodes. This is one of the most expensive operations. Paint The browser redraws visual pixels like text, borders, and backgrounds. Changes like color or background usually trigger paint without recalculating layout. Compositing The browser combines layers (often GPU accelerated) to render the final frame. This is why animations using transform and opacity perform much better. These concepts also map directly to Core Web Vitals: • LCP → How fast the main content is painted • CLS → Layout shifts caused by late layout changes • INP / FID → How quickly the browser responds visually to user interactions A few practical habits that help: • Prefer transform and opacity for animations instead of top, left, width, or height • Avoid repeatedly reading layout properties like offsetHeight in tight loops • Reserve space for images or dynamic content to prevent layout shifts • Optimize fonts and defer non-critical assets in frameworks like Next.js A useful trick when debugging performance: Open Chrome DevTools → enable Paint Flashing → scroll or interact with the page and observe which areas repaint. It’s a simple way to see where performance bottlenecks might be hiding. Curious — what was the last frontend performance issue that surprised you? #Frontend #ReactJS #NextJS #WebPerformance #CoreWebVitals #WebDevelopment #SoftwareEngineering #FrontendEngineering

React useEffect vs useLayoutEffect — Stop Using Them Interchangeably As a Frontend Engineer, understanding when React runs your side effects is critical for performance and UI correctness. Many developers treat useEffect and useLayoutEffect as the same — but they are NOT. Let’s break it down 👇 🔹 1️ useEffect (Non-blocking, Async after paint) R Runs after the browser paints the UI e Does NOT block rendering aBest for: 1. API calls 2. Subscriptions 3. Logging 3. Timers 4. Updating non-visual state useEffect(() => {   fetchData(); }, []);  Use this in 90% of cases. Why? Because it keeps your app fast and smooth. 🔹 2️ useLayoutEffect (Blocking, Before paint) c Runs synchronously after DOM mutation but before browser paint t Blocks rendering until it finishes Best for: 1. Measuring DOM size 2. Calculating element position 3. Avoiding visual flicker 4. Sync DOM reads/writes useLayoutEffect(() => {   const height = ref.current.offsetHeight;   setHeight(height); }, []);  If you need to measure or modify the DOM before the user sees it — use this. Performance Rule If you misuse useLayoutEffect, you can: 1. Block the main thread 2. Cause performance drops 3. Hurt user experience So always ask:  Does this effect affect layout before the user sees it? If NO → useEffect If YES → useLayoutEffect Clean architecture isn't just about folder structure — it's about understanding execution timing. #React #Frontend #WebDevelopment #JavaScript #ReactJS #Performance #SoftwareEngineering

Built a Beautiful Analog Clock Web App using HTML, CSS, and JavaScript. Features: 🔹 Real-time analog clock 🔹 Digital time display 🔹 Animated gradient background 🔹 Smooth second-hand movement 🔹 Dynamic seconds progress ring This project helped me improve my understanding of JavaScript DOM manipulation and CSS animations while building a clean and interactive UI. What do you think about this UI? #WebDevelopment #JavaScript #FrontendDevelopment #HTML #CSS #Coding

🚀 Character Counter Web Application I recently built a Character Counter Web Application using React.js, where users can input text and instantly get the total character count in a clean and interactive interface. 🔷 Project Overview: This project features a modern split-screen UI design, with a creative visual section on the left and a functional input section on the right for real-time interaction. 🔷 Key Features: ◾ Accepts user input through a text field ◾Displays live character count dynamically as the user types ◾Built using React functional components and state management (useState) ◾Implemented event handling for real-time updates ◾Designed a responsive split-screen UI using CSS ◾Clean layout with focus on user experience and readability 🔷 Technologies Used: React.js | HTML | CSS | JavaScript This project helped me strengthen my understanding of React fundamentals, state management, event handling, and dynamic UI rendering, while building a practical and interactive component. 💡 Such features are commonly used in form validations, content editors, and social media platforms. #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript #HTML #CSS #UIUX #Projects #LearningByBuilding

🚀 Built a Toast Notification (Snack Bar) for Websites using HTML, CSS & JavaScript Excited to share another mini project from my frontend development journey! 💻✨ I created a Toast Notification / Snack Bar component that displays quick feedback messages to users, such as success, error, or warning notifications. 🔹 Tech Stack Used: ✅ HTML5 – Structure of the component ✅ CSS3 – Styling, animation & responsive design ✅ JavaScript – Dynamic notification logic 🔹 Key Features: ✔️ Smooth toast animation ✔️ Multiple notification types (Success, Error, Warning) ✔️ Auto dismiss after a few seconds ✔️ Clean and reusable UI component ✔️ Responsive design for all devices This project helped me improve my understanding of: 👉 DOM Manipulation 👉 JavaScript Event Handling 👉 UI Component Design 👉 CSS Animations Small UI components like this are very useful in modern web applications and help create better user experience (UX). 🔗 Live Demo: https://lnkd.in/gWJKdFDx #WebDevelopment #FrontendDeveloper #JavaScript #HTML #CSS #UIDeveloper #ReactDeveloper #BuildInPublic #LearningByBuilding #WebDesign

🚀 Glad to share my new project: SVGFinder. As I regularly make projects, finding suitable icons to add them in the projects is needed. But to find them, it is very much time taking process, where I have to search in different websites for suitable icons but sometimes we can't find them, so I thought of creating my own website, where I can get icons for free with <svg>...</svg> markup along with customized size and color too. Features: • Search thousands of icons by keywords like star, home, pizza, etc... • Click "View" on any icon to open a modal with a large preview. • Can customize icon's size/color and copy the <svg>...</svg> markup to the clipboard. • Can mark icons as favourites using heart button on each card. • Custom layout and modal styling for both desktop and mobile screens. Tech Stack: 1. React 2. Iconify API (for SVG Icons) 3. Lucide-react Module (for Heart Icon) 4. CSS (for styling). Checkout the live demo below! 👇 Live App: https://lnkd.in/d4crMUfB (Best viewed on Desktop/Laptop to see the Admin Dashboard in full detail!). GitHub Repo: https://lnkd.in/dG-S2Qp5 I’m always looking to improve, so if you spot a bug or have a suggestion on the logic, I’d love to hear your feedback in the comments! 👇 #WebDevelopment #ReactJS #Coding #IconifyAPI #SVGFinder #CSS

Just when I thought <Link> was magic... I found <NavLink> 🤯✨ Yesterday, I shared how moving from <a> to <Link> changed user experience. Today, I took it a step further. If <Link> is about how we get there, <NavLink> is about knowing where we are. The "Where am I?" Problem: Have you ever been on a website and forgotten which page you were on? Usually, developers have to write complex logic to check the current URL and manually add a "selected" class to the button. The <NavLink> Solution: In React Router, <NavLink> is a special version of <Link> that automatically knows if it is active. Why it’s a game-changer: • Automatic Active Classes: It automatically adds an .active class to the tag when the URL matches. No more manual if/else logic! • Dynamic Styling: You can pass a function directly into the style or className props to change colors or fonts on the fly. • Accessibility: It automatically handles aria-current="page", which makes your site much better for screen readers and visually impaired users. It’s these small, intelligent components that separate a "basic website" from a "professional web application." #ReactJS #FrontendDevelopment #WebDevTips #JavaScript #CleanCode #MetaCertified #LearningToCode #UserExperience #Website #Developer #Meta

𝗧𝗮𝗶𝗹𝘄𝗶𝗻𝗱 𝗖𝗦𝗦 𝘃𝘀. 𝗕𝗼𝗼𝘁𝘀𝘁𝗿𝗮𝗽: 𝗪𝗵𝗶𝗰𝗵 𝗦𝗵𝗼𝘂𝗹𝗱 𝗬𝗼𝘂 𝗖𝗵𝗼𝗼𝘀𝗲?   The styling framework you choose can have a big impact on your frontend development process - affecting development speed, scalability, and long-term maintainability.   While building projects with Next.js, I’ve seen how the difference between utility-first and component-based frameworks can shape the entire development workflow.   • Tailwind CSS follows a utility-first approach, allowing developers to build highly customized designs directly in the markup with full control over styling. • Bootstrap focuses on a component-based approach, offering pre-built UI components that make it easy to create responsive layouts quickly.   Both frameworks are powerful in their own way. The best choice depends on your project requirements, the level of customization you need, and how your team prefers to work.   There’s no one-size-fits-all - choose the tool that best supports your development style.   What do you prefer for your projects - Tailwind CSS or Bootstrap?    #FrontendDevelopment #TailwindCSS #Bootstrap #WebDevelopment #NextJS #UIUX

Every developer has faced this moment. You build a beautiful website… perfect UI, smooth animations, great functionality. But when the page loads slowly, users leave before they even see your work. A 1-second delay in page loading can reduce conversions and increase bounce rates. In today’s fast digital world, speed is not optional — it's essential. When I started learning web development, I thought design and features were everything. But with time, I realized that performance is what truly defines a great website. Here are 3 simple ways developers can boost web performance: ✅ Image Optimization – Use modern formats like WebP or AVIF to reduce image size without losing quality. ✅ Code Splitting – Tools like React and Next.js allow loading only the required code, improving performance dramatically. ✅ Minimize Third-Party Scripts – Too many external scripts can slow down your website significantly. Small optimizations can make a huge difference in user experience and conversions. Remember: Don’t just build websites — build fast experiences. ⚡ What’s your favorite way to improve website performance? #WebDevelopment #FrontendDevelopment #WebPerformance #WebsiteOptimization #JavaScript #ReactJS #NextJS #PerformanceOptimization #SoftwareDevelopment #CodingTips #DeveloperCommunity #TechLearning

Not coded yet… but designed with intention. 👀 Here’s my latest UI concept — a responsive “About Us” page for Photo Lab (Desktop + Mobile). Focused on: 🎯 Strong visual hierarchy 🎯 Layered card depth 🎯 Clean mobile adaptation Next mission: Turning this into a fully responsive React + Tailwind build. 🚀 Step by step, design → development → deployment. Feedback is always welcome! #Figma #UIDesign #FrontendDeveloper #ReactJS #TailwindCSS #BuildingInPublic