Building React Login & Registration System with React.js

I recently worked on a project where I had to optimize the performance of a Next.js application It was a real challenge, and I made a mistake that cost me hours of debugging I was trying to implement a complex UI pattern using React But I forgot to memoize a component, causing it to re-render unnecessarily As I was debugging, I had a realization that I should have used the React DevTools to identify the issue earlier This would have saved me a lot of time and frustration A practical takeaway from this experience is to always use the React DevTools to identify performance bottlenecks It's a simple yet effective way to optimize the performance of your React applications What's the most common mistake you've made when optimizing the performance of a React application #NextJs #React #PerformanceOptimization #FrontendEngineering #UIPatterns #ReactDevTools #JavaScript #WebDevelopment #OptimizationTechniques

🚀 Day 8 of Building React Projects Today I built a Movie Search Application using React.js. This project allows users to search for movies and instantly view details such as the poster, rating, and description using a movie API. ✨ Features: • Search movies by name • Display movie posters • Show movie ratings • Show movie descriptions • Responsive and simple UI 🛠 Concepts Used: • API Calls • React Hooks (useState, useEffect) • Search functionality • Fetching and displaying dynamic data 💻 Tech Stack: React.js JavaScript HTML CSS Building small projects daily helps strengthen React concepts and real-world development skills. 🔗 Source code: https://lnkd.in/dz32JTxb #React #JavaScript #WebDevelopment #FrontendDevelopment #CodingJourney #LearningInPublic #ReactProjects

Today I explored some core concepts of React that changed the way I see frontend development : • How React works behind the scenes • Rendering process in React • Virtual DOM vs Real DOM • Diff Algorithm (how react updates efficiently) • Client Side Rendering (CSR) • Server Side Rendering (SSR) One thing I found really interesting is how React uses the virtual DOM and diff algorithm to update only the necessary parts of the UI, making apps faster and more efficient. I'm excited to dive deeper and build more projects using these concepts! #React #Javascript #MernStackDevelopment

One of the biggest mistakes I made early in React: 👉 Overusing useEffect. After working with React for 3 years, I realized: Most useEffect usage is unnecessary. Here’s when you should NOT use useEffect 👇 ❌ 1. Deriving state from props If you can calculate it directly during render, don’t store it in state. Bad: const [fullName, setFullName] = useState("") useEffect(() => { setFullName(firstName + " " + lastName) }, [firstName, lastName]) Better: const fullName = firstName + " " + lastName ❌ 2. Handling simple calculations React re-renders already — no need for effects. ❌ 3. Updating state based on another state This often leads to unnecessary re-renders or bugs. ✅ When should you use useEffect? API calls Subscriptions (e.g., WebSocket) DOM side effects 💡 Rule I follow now: “If it can be calculated during render, don’t use useEffect.” This one shift made my code: ✔ Simpler ✔ Easier to debug ✔ More performant React is powerful — but only when used correctly. What’s one mistake you used to make in React? #React #FrontendDevelopment #JavaScript #CleanCode #WebDev

🚀 Day 7 of Building React Projects Today I built a Weather Application using React.js. This project allows users to search for any city and view the current weather information using a weather API. ✨ Features: • Search weather by city name • Display temperature and weather condition • Shows weather icon • Simple and responsive UI • Real-time data using API 🛠 Tech Stack: React.js JavaScript HTML CSS Weather API 💻 Source Code: https://lnkd.in/dasKibUN #ReactJS #JavaScript #FrontendDevelopment #WebDevelopment #LearningInPublic

Want to make your React/Next.js code cleaner and more maintainable? 🤔 Custom hooks are your secret weapon! They let you extract component logic into reusable functions, keeping your components focused on rendering UI. Think about it: - **Reusability:** Write logic once, use it anywhere. - **Readability:** Components become shorter and easier to understand. - **Testability:** Isolate and test your logic independently. This is a game-changer for managing complex applications. What's your favorite custom hook pattern? #ReactJS #NextJS #JavaScript #WebDevelopment #CustomHooks #CodingTips

🚀 Understanding useEffect in React — Made Simple! While learning React, one concept that really stood out to me is useEffect. It helps us handle actions that happen after a component renders. 🔹 What is useEffect? It runs code after the component renders and reacts to changes in state or props. 🔹 Basic Syntax: useEffect(() => {   // your code here }, [dependencies]); 🔹 How it works: 👉 Component renders 👉 useEffect runs 👉 State/props change 👉 Component re-renders 👉 useEffect runs again 💡 Key Idea: Runs after render & reacts to changes This hook is very useful for: ✔ API calls ✔ Data fetching ✔ Updating UI dynamically Still exploring and improving my frontend skills step by step 🚀 #ReactJS #useEffect #FrontendDevelopment #WebDevelopment #JavaScript #LearningJourney

🚀 React Roadmap for 2026 — Crack Frontend Like a Pro! • Start with JavaScript fundamentals (ES6+, closures, async/await) ⚡ • Understand DOM & events to build strong UI logic • Learn Git & GitHub for version control 🔧 💡 Move into React Core • Master JSX, components, props & state • Learn hooks (useState, useEffect, useRef) 🧠 • Practice conditional rendering & lists • Understand component lifecycle 🔥 Level Up Your Skills • Explore React Router for navigation • Learn state management (Context API, Redux) 📦 • Work with APIs (fetch/axios) • Focus on performance optimization 🌟 Build & Showcase • Create real-world projects (dashboards, auth apps) • Learn testing (Jest/RTL) 🧪 • Deploy using Vercel/Netlify Consistency beats talent. Build daily, not someday 💯 Source :- codewithsloba.com✨ Learn more from w3schools.com #ReactJS #WebDevelopment #FrontendDeveloper #CodingJourney #JavaScript

🚀 Master React Router in Minutes! Here’s a simple breakdown of everything you need to know: ✅ What is Routing ✅ SPA Concept ✅ Static vs Dynamic Routes ✅ useParams() ✅ Protected Routes 💡 Key Takeaways: React uses SPA (Single Page Application) Routing helps display components based on URL Dynamic routes make apps scalable Protected routes secure your app 📌 If you're learning React, this is a must-know concept! Let me know in comments 👇 What topic should I cover next? #React #WebDevelopment #Frontend #JavaScript #ReactJS #Coding #LearnToCode

Built multiple projects with React, and one thing I’ve realized is performance isn’t just about code — it’s about the right tools. React gives flexibility with components, hooks, and rendering control. But when it comes to production-level optimization, Next.js adds that extra edge with SSR, SSG, routing, and built-in optimizations. Understanding where to use what makes the real difference 🚀 #React #NextJS #WebDevelopment #Frontend #Performance #JavaScript