Decorator Pattern in JavaScript: A Flexible Alternative to Subclassing

Last week I published my personal project, Random UI, a collection of components, hooks and utilities for React/Next.js. Today, I want to spotlight a component I’m incredibly proud of: The Markee. (Yes, "Marquee" was too boring) It’s a simple, performant, and composable marquee component for React/Next.js, and I designed it with a specific philosophy in mind. Why is it different? 🔹 Inspired by shadcn/ui: It follows the same design pattern. Delivered with compound components, to make it reliable, powerful and standardized. 🔹 Zero JavaScript, Pure Performance: This component uses only CSS and Tailwind CSS for the animation. No external libraries, no heavy JS calculations. Just buttery-smooth performance. 🔹 Fully Composable & Customizable: It’s built with compound components (MarkeeItem, MarkeeFade, MarkeeSpacer) giving you granular control over every part. It’s fully responsive and super flexible. 🔹 Copy & Paste Ready: It’s unstyled by default (like shadcn/ui), so you can drop it into any project and have it match your design system instantly. I even created a short video showing how you can copy, paste, and import it into your project in just 2 minutes. Stop bloating your bundle with another dependency. Check out the "Markee" docs here: https://lnkd.in/dUrTk-mV Let me know what you think! #react #nextjs #tailwindcss #css #frontend #webdevelopment #opensource #uikit #components #shadcnui #reactjs #developers #programming

🚀 The Decorator Pattern (JavaScript) The Decorator pattern dynamically adds responsibilities to an object without modifying its structure. Decorators provide a flexible alternative to subclassing for extending functionality. In JavaScript, this can be achieved by wrapping an object with additional functionality. This allows you to add behavior to individual objects, rather than applying it to an entire class of objects. Decorators are useful for adding cross-cutting concerns, such as logging or validation. 🌟 Smart learning > Hard working 💡 Master tech faster — 10,000+ bite-sized concepts, 4,000+ in-depth articles, and 12,000+ practice questions await! 📱 Get the app: https://lnkd.in/gefySfsc 🔗 Check it out: https://techielearn.in #JavaScript #WebDev #Frontend #JS #professional #career #development

🔥 For the last few months, I’ve been using React hooks heavily across my projects — and it completely changed how I think about building UI in React JS. Most of us default to useEffect for everything… but when your logic depends on the actual rendered layout — element size, position, or spacing — it often runs too late. That’s when you see layout shifts, flickers, or weird UI jumps. This is where useLayoutEffect becomes a game-changer. It runs before the browser paints, which means: ✨ You get accurate layout values instantly ✨ No unexpected UI flickers ✨ Stable positioning for tooltips, dropdowns, modals ✨ Cleaner animations and transitions ✨ A more polished, professional-feeling interface Using it across real-world React JS apps has made my UI more stable, predictable, and smooth. Sometimes the difference between a “good” UI and a “great” one is choosing the right hook at the right time. ⚡ #ReactJS #WebDevelopment #JavaScript #Frontend #ReactHooks #UseLayoutEffect #TechTips #UIUX

"Why Mastering the Browser’s Rendering Process Can 10x Your Frontend Skills 🚀" Most web developers focus on frameworks — React, Vue, Next.js — but only a few truly understand how browsers actually render their code. Here’s what happens when you load a page 👇 1️⃣ HTML Parsing → DOM Tree Your HTML turns into a structured tree of elements. 2️⃣ CSS Parsing → CSSOM Tree Your styles are parsed into another tree that defines how things should look. 3️⃣ Render Tree Creation Browser merges the DOM + CSSOM → creates a visual representation of what should appear on screen. 4️⃣ Layout (Reflow) The browser calculates the exact position and size of every element. 5️⃣ Painting & Compositing Pixels are drawn and layers are combined to form the final visual page. ⚡ Why it matters: Understanding this helps you avoid expensive reflows and janky animations. You’ll write faster, more optimized CSS and JS. You’ll debug layout shifts and performance issues like a pro. Frameworks come and go. But if you understand how the browser thinks, you’ll always stay ahead. 💪 #WebDevelopment #Frontend #Performance #CSS #JavaScript #React #Nextjs #WebOptimization

🖼️ Project 4 — React Gallery Pro 📂 Repo → https://lnkd.in/giy74wV8 React Gallery Pro 🚀 What I Learned: This was the capstone project of the series — a polished gallery app fetching real data through APIs, designed with premium glassmorphic UI and advanced motion effects. 🧩 Key Concepts: API Fetching with useEffect State Management Framer Motion Animations Pagination & Smooth Transitions TailwindCSS Glass Design ⚡ Tech Stack: React ⚛️ | TailwindCSS 🎨 | Framer Motion 🎞️ | Picsum API 🌐 💬 Takeaway: Turning knowledge into experience — from props to APIs, this project marks the transition from learning React to building with confidence. Big thanks again to Sarthak Sharma for being an incredible guide and creating structured learning paths 🙌 On to the next phase 🚀 — building full-stack projects soon 👨💻💡 #ReactJS #Frontend #WebDevelopment #LearningJourney #FramerMotion #TailwindCSS #WebDesign #javascript #developerjourney

🎨 Background Color Changer – React + TailwindCSS Built a fun mini project using React Hooks (useState) and TailwindCSS to dynamically change background colors with just a click! 🚀 🟢 Each button updates the background instantly without refreshing the page. 💻 A simple yet effective way to practice state management, inline styling, and responsive UI design. This small project gave me a hands-on understanding of how React re-renders components when the state changes — a core concept every React developer should master. 🧠 Tech Stack: React.js, TailwindCSS 💡 Concepts Covered: useState Hook, Dynamic Styling, and Component Rendering Here’s how it looks 👇 📸 (Attach your screenshot here) #ReactJS #TailwindCSS #FrontendDevelopment #WebDevelopment #ReactHooks #LearningByBuilding #MERNStack #CodingJourney #100DaysOfCode

🎨 #Styling in #Next.js Which One’s Your Favorite? #Next.js makes styling super flexible — whether you love utility-first CSS or prefer traditional stylesheets. Here are the main ways to style your Next.js applications 👇 1️⃣ #Global CSS – Apply styles across your entire app (great for resets or themes). 2️⃣ #CSS Modules – Scoped styles at the component level (clean and predictable). 3️⃣ #Sass / SCSS – Classic choice for nesting and variables. 4️⃣ #Styled JSX – Built-in CSS-in-JS right inside your component. 5️⃣ #Tailwind CSS – The developer favorite ⚡ for rapid, utility-first design. 6️⃣ #Styled Components / Emotion – Write dynamic CSS directly in JavaScript. 7️⃣ #Shadcn/UI + Tailwind – The modern combo 💎 for reusable, production-ready components. 💡 Pro Tip: Combining Tailwind + Shadcn/UI + Framer Motion gives you a beautiful, consistent, and animated design system — perfect for 2025-level Next.js apps. Stay Secure! ☺️ #NextJS #WebDevelopment #Frontend #ReactJS #TailwindCSS #UIUX #Coding #DeveloperTips

Prefetch and preload sound a little too similar but they serve different purposes. <link rel="prefetch" href="/next-chunk.js"> <link rel="preload" href="/fonts.woff2" as="font"> Preload — "For now" Tells the browser: “Hey, I’m going to need this resource immediately. Please fetch it now so rendering doesn’t block later.” Used for things like: - Fonts (as="font") - Critical JS or CSS chunks - Hero images above the fold - High priority, part of the current navigation. Prefetch — "For later" Tells the browser: “I might need this soon — maybe on the next page. Fetch it when you’re free.” Used for: - Code chunks of upcoming routes - Assets likely needed after user interaction - Low priority, speculative. The goal is a faster future navigation. React apps rarely do this manually If you’re using Next.js, it handles prefetching for you. When a <Link> enters the viewport, Next.js automatically adds a rel="prefetch" under the hood, quietly downloading the JS for that route before you even click. That’s why navigating between pages often feels instant. You didn’t preload it. You prefetched it. 🚀 In short: preload → critical, immediate, render-blocking resources. prefetch → speculative, future, background fetches. React (via Next.js) automates this so your app feels fast, even before the click. #WebPerformance #FrontendDevelopment #ReactJS #NextJS #WebDev #JavaScript #PerformanceOptimization #Caching #CoreWebVitals #DeveloperExperience #TechExplained #WebEngineering #CodeOptimization #FrontendTips

📅  My 23rd JavaScript Project – Pokémon Fetcher ⚡ 🎨 Today I built something fun and interactive — a Pokémon Fetcher, a sleek web app that lets users search and explore detailed Pokémon data with smooth UI and animations. 💡 The idea: Combine PokéAPI with modern frontend design to create a stylish and dynamic Pokémon experience — fast, responsive, and engaging. ✨ Key Features: ✅ Real-time Pokémon search by name ✅ High-quality sprites and detailed stats ✅ Dynamic type & ability tags ✅ Loading and error handling for smooth UX ✅ Dark/Light theme toggle 🌙☀️ ✅ Toast notifications for feedback ⚡ Best moment: Watching the Pokémon details appear dynamically — with images, colors, and transitions — felt like bringing a small piece of the Pokédex to life. 🌱 Takeaway: JavaScript isn’t just about functionality — it’s about creating experiences. Mixing APIs with UI design can turn a simple idea into something truly interactive. #JavaScript #WebDevelopment #FrontendProjects #APIs #Pokémon #CreativeCoding #CodingJourney #LearningByDoing