Jatin Dhamija’s Post

🚀 Just built a Todo List App using React + Vite! This project helps you: ✅ Add, delete, and manage tasks easily ✅ Mark tasks as done and track your progress ✅ Filter tasks by All / Active / Done ✅ Search tasks in real time ✅ Save tasks automatically in the browser using localStorage 💡 Key concepts used: React Components – reusable and modular UI pieces useState & useEffect – for state management and syncing with localStorage Props – passing data and functions between components Vite – fast and smooth development setup This project is beginner-friendly, clean, and fully functional — perfect for anyone learning React or wanting to see simple, practical UI patterns in action. Check out the code here: https://lnkd.in/d39uPBj4 #React #JavaScript #WebDevelopment #Frontend #Vite #100DaysOfCode #Coding #Portfolio #TodoApp

💡 5 Useful React Tips Every Developer Should Know After working with React for the past few years, here are a few practices that really improved my code quality and application performance: 1️⃣ Use React.memo to prevent unnecessary component re-renders. 2️⃣ Prefer functional components with hooks instead of class components. 3️⃣ Keep components small and reusable for better maintainability. 4️⃣ Use lazy loading (React.lazy) to reduce initial bundle size. 5️⃣ Use proper state management like Redux or Context when the app grows. Small improvements like these can make a big difference in scalability and performance. What React best practices do you follow in your projects? #ReactJS #FrontendDeveloper #JavaScript #WebDevelopment #Programming #SoftwareEngineering

Most React developers make these 5 mistakes that slow down their app without realising it. 1. Not memoizing components properly Re-rendering components that don't need to re-render is the #1 performance killer. Use React.memo and useMemo where it actually matters — not everywhere. 2. Putting everything in one component A 500-line component is not a component. It's a problem. Break it down. Your future self will thank you. 3. Ignoring lazy loading If you're not code-splitting with React.lazy() and Suspense, you're loading everything upfront. Your users feel that. 4. Skipping key props in lists Using index as key is not the same as using a unique ID. It causes subtle, hard-to-debug UI bugs. 5. Not cleaning up useEffect Memory leaks happen silently. Always return a cleanup function when subscribing to events or timers. Save this post. Your next React project will be cleaner for it. Which one are you guilty of, let me know in the comments. #ReactJS #FrontendDevelopment #WebDevelopment #ReactTips #NextJS #JavaScript #FrontendDev

🚀 React Performance Tip Many developers accidentally slow down their React apps by recalculating data on every render. ❌ Slow Approach: Processing data inside the component on every render. ✅ Fast Approach: Using useMemo to memoize expensive calculations and avoid unnecessary work. Small optimization. Huge performance impact. ⚡ Faster rendering ⚡ Better user experience ⚡ Cleaner React code Always remember: Optimize when computation is expensive. #React #ReactJS #JavaScript #WebDevelopment #FrontendDevelopment #CodingTips #ReactPerformance #SoftwareEngineering

React 19 makes it easier to handle form pending and error states, something we've all been doing by hand for years. In previous React apps, we had to deal with: useState for manually turning on and off buttons and updating the user interface for loading and error flows UseFormStatus() and the new action form API in React 19 provide a clean solution to this problem. There is no longer any additional state, boilerplate, or juggling of multiple hooks because the framework now automatically tracks the pending state for the entire form. Cleaner code, less state management, and a more consistent user experience are the outcomes. Removed: ==> const [pending, setPending] = useState(false); Because React 19 now handles pending state automatically. Removed: ==> setPending(true); … setPending(false); No more manual “start/stop loading” logic. Added: const { pending } = useFormStatus(); ==> The button reads the form status directly—no state, no props. Added: <form action={action}> ==> Replaces onSubmit; React manages the full submit lifecycle. To demonstrate how much React 19 simplifies things, I'm including a brief before vs. after in this post. One of the first features you'll love if you're upgrading to React 19 is this: #React19 #ReactJS #Frontend #WebDevelopment #JavaScript #useFormStatus #CleanCode #jamesCodeLab #fblifestyle

One mistake I was making in React (and how I fixed it) While doing some frontend projects, I noticed unnecessary re-renders were slowing down my app. After debugging with Chrome DevTools, I realized: 1. State was being updated at higher component levels 2. Causing child components to re-render unnecessarily Fix: ✔ Moved state closer to where it was needed ✔ Used proper conditional rendering ✔ Implemented lazy loading for better performance Result: Improved load performance and cleaner component structure. Still learning. Still improving. #ReactJS #FrontendDevelopment #JavaScript #LearningInPublic

A few months ago, I reviewed a React project that looked perfect at first… but the deeper I went, the clearer the problem became. ⚛️ The issues weren’t React itself. It was the structure. • Poor API handling • Unoptimized renders • Messy state management These small things slowly turn a good React/MERN app into a difficult one to scale. One thing I’ve learned as a MERN developer: Clean structure today saves months of fixing tomorrow. Are you structuring your React apps for scale or just for speed? #ReactJS #MERNStack #FrontendDevelopment #JavaScript #WebDevelopment

💡 React useEffect – Small Syntax, Big Impact useEffect is one of the most powerful hooks in React, but subtle changes can completely change your app's behavior: 🔹 useEffect(() => {}) Runs after every render – use when you need something to happen continuously. 🔹 useEffect(() => {}, []) Runs only once on mount – perfect for initializing data or fetching APIs. 🔹 useEffect(() => {}, [state]) Runs only when state changes – ideal for reacting to specific updates without extra renders. ⚡ Small dependency tweaks → big differences in performance and behavior. Mastering useEffect = fewer bugs ✅ cleaner code ✅ faster apps 🚀 #ReactJS #FrontendDevelopment #JavaScript #WebDev #CodingTips #ReactHooks

The React ecosystem is huge… but knowing which tools to use and when can save you hours of development time and make your apps more scalable. Here are essential React tools every developer should master 👇 ⚛️ Next.js – Full-stack React framework for production-ready apps 🎨 Tailwind CSS – Build UI faster with utility-first styling 🧠 Redux – Manage complex global state with ease 📡 Axios – Simplify API calls and backend communication 🧩 Material UI – Ready-to-use professional UI components ⚡ Vite – Lightning-fast dev environment for React projects 🧭 React Router – Seamless client-side routing for SPAs 🔷 TypeScript – Strong typing for scalable, maintainable code 💡 Using the right tools doesn’t just make your apps faster — it makes them more reliable, scalable, and professional, which impresses clients and teams alike. 🤔 Question for you: Which React tool do you rely on the most in your projects? Let’s share tips! #ReactJS #NextJS #TailwindCSS #Redux #TypeScript #MaterialUI #Vite #WebDevelopment #FrontendDevelopment #FullStackDeveloper #ReactDeveloper #JavaScript #Coding #Programming #WebApp #TechTips #DevCommunity

React is just not about useState👀 My App.jsx had become a mess — multiple useEffects, auth checks, socket connections, loading states… everything in one place. It worked, but reading it felt like debugging a jungle 😅 That’s when it hit me — this is exactly where custom hooks shine. Instead of stuffing all logic inside components, we can extract it into reusable hooks like: useAuth() → handles user + login state useSocket() → manages connection & events useLoading() → controls loaders Basically turning this 👇 👉 one giant useEffect into this 👇 👉 clean, readable, modular logic What I love about custom hooks is: They clean up components They remove duplication And they make your code feel more like building blocks than chaos Also an underrated point: 👉 Custom hooks don’t share state, they just share logic. (React) That means every component still stays independent, which is exactly what we want. Still learning, but this small shift already made my code 10x better. If you’re writing long useEffects… that’s probably your signal to create a hook ⚡ #ReactJS #FrontendDevelopment #WebDevelopment #CodingJourney #JavaScript