Developer tips: jsx to tsx, second monitor, React/Nextjs starter kit

⚛️ Mastering Form Events in React.js As part of my ongoing React practice series, I explored how to handle form events — one of the core building blocks for interactive web applications. I implemented controlled components using React hooks and event handlers such as: onChange → to capture and update state dynamically onClick → to manage user-triggered actions onSubmit → to handle and validate form submissions efficiently 🧠 Technical Highlights: Implemented controlled input fields using useState. Prevented default form behavior with event.preventDefault(). Strengthened understanding of state-driven rendering in React. Enhanced fluency in handling real-time input updates and event binding. This mini project helped me solidify my understanding of React’s component reactivity, event system, and state management — all key to writing scalable front-end applications. #ReactJS #FrontEndDevelopment #WebDevelopment #JavaScript #UIDevelopment #SoftwareEngineering #LearningByDoing #DeveloperJourney

I just finished building a fully custom pagination component for my current React project! 🚀 Instead of reaching for a library, I implemented the logic from scratch, which was a great exercise in core React principles. Key takeaways and skills demonstrated: Shared State Management: Handling the current page state in the parent component and passing the setter function (props.setCurrent) down to the pagination UI. Dynamic Rendering Logic: Implementing the unique requirement for the page array (arr) to only shift one by one when the user clicks past the visible edge (e.g., from page 9 to 10), rather than shifting in large blocks. Clean Array Manipulation: Using methods like slice() and the spread operator (...) to efficiently manage and update the visible page numbers. Check out the video below to see the seamless, shifting UI in action! #ReactJS #JavaScript #FrontendDevelopment #CustomComponents #StateManagement #CodingSkills

📋 Project Showcase: React To-Do List Application ⚛️ ✨ Key Features: ✏️ Dynamic task creation with validation ✏️ Inline editing and real-time completion tracking ✏️ Persistent storage using localStorage ✏️ Responsive design with Tailwind CSS ✏️ Robust error handling and accessibility-focused UI ✏️ Built with React Hooks (useState, useEffect, useRef) Through this project, I reinforced my understanding of core React concept — from component structure and props to efficient state and event handling. Always building, always learning.🎯 📂 GitHub Repository:https://lnkd.in/gnMTseZb #ReactJS #JavaScript #WebDev #FrontendDevelopment #MERNStack

🧩 Today I built a small but powerful custom React hook: useDocumentReadyState() It lets you detect when the document is fully loaded, something that’s surprisingly useful in modern apps like Next.js or PWAs. 🔍 Here’s what it does: • Tracks if the document is ready using useState • Listens to the readystatechange event • Cleans up automatically when unmounted 💡 Use cases: • Running code safely after the DOM is ready • Avoiding hydration issues in Next.js • Displaying loaders or initializing animations only when needed It’s simple, efficient, and helps keep things clean in client-side logic. Curious to hear — how do you usually handle “DOM ready” states in your projects? 👇 #React #NextJS #WebDev #PWA #Frontend #DevTips #JavaScript

⚡ The Browser is the most underrated piece of tech we use every day. You might write code in React, Vue, or Node — but it’s the browser that brings it all to life. Here’s what’s really happening when you hit Refresh: 1️⃣ HTML Parser builds the DOM. 2️⃣ CSS Parser builds the CSSOM. 3️⃣ Both merge into the Render Tree. 4️⃣ The browser paints, then composes each layer you see. 5️⃣ Any reflow (like changing layout) or repaint (like color change) costs performance. 💡 Learn how browsers render → and you’ll write faster, smoother UIs without touching a single new framework. Mastering fundamentals = leveling up for free. 🚀 #Frontend #WebDevelopment #JavaScript #React #Performance #BrowserInternals #Learning

I recently developed an interactive React project that demonstrates core concepts such as: ✅ What is React ✅ Virtual DOM & Reconciliation ✅Props vs State ✅ include HOOK s This project allowed me to strengthen my understanding of Component Reusability, State Management, and Hooks, which form the foundation for scalable web applications. Each section dynamically reveals explanations, sample programs, and live outputs, allowing a hands-on understanding of React’s component-based architecture and rendering logic. Through this project, I enhanced my practical knowledge of React Hooks, Component Reusability, and State Management — key skills for building modern web applications. 🎥 Here’s a short video demonstration of the project in action. #React #JavaScript #FrontendDevelopment #WebDevelopment #FullStackDeveloper #ReactJS #LearningByBuilding #ProDeveloper #SoftwareEngineering #TechInnovation

🚀 Understanding the Trio: useState vs useRef vs useReducer in React As React developers, we often juggle between these three — but when to use which? Let’s break it down 👇 🧠 useState > When you need to track simple, reactive state changes that trigger re-renders. 📌 Example: toggling a theme, updating input fields, counters, etc. const [count, setCount] = useState(0); ⚡ useRef > When you need to store a value that persists across renders without re-rendering the component. 📌 Example: accessing DOM elements, storing previous state, timers, etc. const inputRef = useRef(); 🛠️ useReducer > When your state logic becomes complex — involving multiple transitions or actions. 📌 Example: managing forms, API states, or any state with multiple sub-values. const [state, dispatch] = useReducer(reducerFn, initialState); 💡 Quick Summary Hook Triggers Re-render Use Case useState ✅ Yes Simple UI updates useRef ❌ No DOM refs or mutable values useReducer ✅ Yes Complex state logic 🎯 Pro Tip: If you find useState getting messy with multiple variables — it’s probably time to switch to useReducer. #ReactJS #FrontendDevelopment #ReactHooks #WebDevelopment #JavaScript

⚡ The Browser is the most underrated piece of tech we use every day. You might write code in React, Vue, or Node — but it’s the browser that brings it all to life. Here’s what’s really happening when you hit Refresh: 1️⃣ HTML Parser builds the DOM. 2️⃣ CSS Parser builds the CSSOM. 3️⃣ Both merge into the Render Tree. 4️⃣ The browser paints, then composes each layer you see. 5️⃣ Any reflow (like changing layout) or repaint (like color change) costs performance. 💡 Learn how browsers render → and you’ll write faster, smoother UIs without touching a single new framework. #Frontend #WebDevelopment #JavaScript #React #Performance #BrowserInternals #Learning

The Silent Villain: Unoptimized Images You can write the cleanest React code ever but one 2MB image can ruin your entire Lighthouse score. Most performance issues don’t come from bad code… they come from assets we forget to optimize. Next.js gives us tools <Image />, automatic resizing, and modern formats like WebP/AVIF — but many devs still drag and drop raw, heavy files straight from Figma. Optimization isn’t about perfection it’s about respecting your user’s bandwidth and time. Because sometimes, the real bug isn’t in your code it’s in your images. How do you handle image optimization in your Next.js projects? #Nextjs #ReactJS #WebPerformance #FrontendOptimization #WebDevelopment #CleanCode #FrontendEngineer #PerformanceMatters #JavaScript #CodingTips #DeveloperMindset #WebDev

🚀 Back to Basics – Day 18: Rendering Bottlenecks in React & Modern Frameworks ⚙️ In the last post, we optimized JavaScript’s role in rendering — from throttling to lazy loading. But frameworks like React, Vue, and Next.js add another layer to the story: virtual rendering. 🧠 Let’s uncover where things can go wrong — and how to fix them like a pro. 💪 ✨ Why This Matters Even the most optimized browser can’t save a React app that re-renders unnecessarily. Understanding what triggers renders and how to control them keeps your UI lightning-fast. ⚡ ⚙️ 1️⃣ Reconciliation: The React Rendering Dance React compares the Virtual DOM with the previous snapshot (Diffing) and updates only what’s changed. But… too many renders = too many diffs. ✅ Use React.memo() to prevent re-rendering unchanged components ✅ Use useCallback() and useMemo() to memoize expensive logic ✅ Keep components pure — no side effects in render functions ⚙️ 2️⃣ Avoid Unnecessary State Triggers Every setState() or context update can cascade renders. Be mindful of where your state lives. ✅ Lift state up only when needed ✅ Split large contexts into smaller ones ✅ Use libraries like Zustand or Jotai for fine-grained state updates ⚙️ 3️⃣ Optimize Lists and Large DOM Trees Long lists are notorious for slow renders. Virtualize them to only render what’s visible. ✅ Use libraries like react-window or react-virtualized ✅ Add stable keys to avoid costly re-renders 💡 Takeaway Frameworks are powerful — but they don’t make performance automatic. When you master the art of controlled rendering, your app feels instant — even on low-end devices. 🚀 👉 Tomorrow – Day 19: We’ll go deeper into React Rendering Optimization in Real Projects —profiling tools, flame graphs, and how to find the invisible slowdowns. 🔥 #BackToBasics #React #Frontend #WebPerformance #Rendering #Optimization #JavaScript #LearningInPublic #CodingJourney #AdvancedJavaScript