React State Preservation and Reset Explained

💡 React Core Concepts – Simplified If you’re starting your React journey, understanding the core fundamentals is extremely important. Concepts may look simple on the surface, but they play a huge role in building scalable and maintainable applications 👇 ✅ Components → Reusable building blocks of the UI ✅ State → Manages dynamic data within a component ✅ Props → Passes data from parent to child components ✅ Hooks → Add state and lifecycle logic to functional components ✅ Virtual DOM → Improves performance by updating only what’s needed In this document, I’ve broken down: • Core React fundamentals • How these concepts work in real-world applications • Why they matter for performance and scalability 📘 A must-read for anyone learning or revising React basics. 👉 Which React concept confused you the most when you started? Drop it in the comments 👇 #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript #LearningReact #ReactDevelopers #Programming #TechTips #UIDevelopment Genufy TechWorks

If you don’t understand these React concepts, you’ll struggle. React looks simple at first components, props, hooks… But real challenges start when logic and performance come into play. Here are some React concepts that truly decide your skill level 👇 🔹 Reconciliation & Virtual DOM Understanding how React decides what to re-render saves you from performance issues. 🔹 Keys in Lists Keys aren’t just warnings they help React track elements efficiently. 🔹 Closures in Hooks Most bugs in useEffect and useState come from misunderstood closures. 🔹 useMemo vs useCallback Optimization tools not default tools. Misuse can hurt more than help. 🔹 State Batching & Re-renders Knowing when and why a component re-renders makes debugging much easier. 👉 If React feels confusing sometimes, it’s not React it’s usually a JavaScript concept hiding underneath. Master the fundamentals, and React becomes predictable. 💬 Which React concept confused you the most when you started? #ReactJS #JavaScript #FrontendDevelopment #WebDevelopment #MERNStack #ReactHooks #CodingLife #DeveloperCommunity #FrontendDeveloper #SoftwareEngineering #LearnReact #ProgrammingTips #TechCareers #CodeNewbie

Most React developers are comfortable using useEffect to attach event listeners like resize, scroll, or keydown. But managing cleanup for multiple listeners can quickly become repetitive, error-prone, and easy to forget. Recently, I came across a much cleaner and modern pattern using AbortController — and it’s surprisingly simple. Instead of removing each event listener manually, you attach all of them to a single AbortSignal. When the component unmounts, calling controller.abort() cleans everything at once. This pattern is especially valuable for: → Preventing memory leaks → Avoiding zombie event listeners → Writing production-ready React code → Passing senior-level code reviews The best part? One controller.abort() call removes ALL listeners automatically. No repetitive cleanup logic needed. Small details like this are what truly separate junior code from senior-level code. What’s your go-to pattern for handling side effects in React? 👇 #JavaScript #React #Frontend #WebDevelopment #CleanCode #ReactJS #SoftwareEngineering #CodeQuality #DeveloperLife #TechTips #Programming

Stop optimizing your #React components when you don't need to. I see this mistake constantly—developers wrapping everything in useMemo, useCallback, and React.memo before they even know if there's a problem. 🔴 Here's the truth: premature optimization wastes time and makes your code harder to read. A 📦300kb bundle size will hurt your app more than a few extra rerenders ever will. ✅ Remember: well-written code is easier to optimize later than over-engineered code is to maintain now. What's your take on React optimization? Drop your thoughts below. 👇 #React #ReactJS #JavaScript #TypeScript #WebDevelopment #FrontendDevelopment #CleanCode #ComponentDesign #CodeQuality #Programming #SoftwareEngineering #DeveloperTips

🔥 𝗗𝗼𝗻’𝘁 𝗖𝗮𝗹𝗹 𝗬𝗼𝘂𝗿𝘀𝗲𝗹𝗳 𝗮 𝗥𝗲𝗮𝗰𝘁 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝗜𝗳 𝗬𝗼𝘂 𝗖𝗮𝗻’𝘁 𝗔𝗻𝘀𝘄𝗲𝗿 𝗧𝗵𝗲𝘀𝗲 𝗤𝘂𝗲𝘀𝘁𝗶𝗼𝗻𝘀 Everyone adds “React Developer” to their profile. But very few can confidently answer these 👇 ❓ Ask Yourself Honestly 1️⃣ What problem does Virtual DOM actually solve? 2️⃣ Why do we use keys in lists — and what breaks if we don’t? 3️⃣ What’s the real difference between useEffect and useLayoutEffect? 4️⃣ When should you NOT use useState? 5️⃣ How does reconciliation work in React? 6️⃣ Why can improper dependency arrays cause infinite re-renders? 7️⃣ What’s the difference between controlled vs uncontrolled components? 8️⃣ When would you choose Context API over Redux (and when not)? 9️⃣ How does React memoization actually improve performance? 🔟 What causes unnecessary re-renders and how do you prevent them? ⚠️ 𝗧𝗿𝘂𝘁𝗵 𝗕𝗼𝗺𝗯 If you can’t explain these clearly, you’re using React, not understanding React. Frameworks change. Concepts stay. 📚 Learn from the Right Sources 🔗 React Official Docs: https://react.dev 🔗 React Patterns: https://reactpatterns.com 🔗 Advanced Hooks Guide: https://lnkd.in/dne6r3-r 🔗 React Performance: https://lnkd.in/dZq7NXzG 𝗙𝗼𝗹𝗹𝗼𝘄 𝗺𝘆 𝗜𝗻𝘀𝘁𝗮𝗴𝗿𝗮𝗺 𝗽𝗮𝗴𝗲: https://lnkd.in/dqENP2ZM 𝗜'𝘃𝗲 𝗰𝗿𝗲𝗮𝘁𝗲𝗱 𝗖𝗼𝗺𝗽𝗹𝗲𝘁𝗲 𝗠𝗘𝗥𝗡 𝗦𝘁𝗮𝗰𝗸 𝗚𝘂𝗶𝗱𝗲. 𝗚𝗲𝘁 𝘁𝗵𝗲 𝗚𝘂𝗶𝗱𝗲 𝗵𝗲𝗿𝗲 - https://lnkd.in/dauSXK5R #ReactJS #FrontendDeveloper #WebDevelopment #JavaScript #ReactHooks #DeveloperLife #TechCareers #Programming

If you are starting your journey with React, these 5 hooks are essential to understand and use in your projects: 🔹 useState – Used to manage state in a component (like counters, inputs, toggles). const [count, setCount] = useState(0); 🔹 useEffect – Used for side effects such as fetching data, updating the DOM, or running code after render. useEffect(() => { fetchData(); }, []); 🔹 useRef – Used to reference DOM elements or store values without re-rendering the component. const inputRef = useRef(null); 🔹 useContext – Used to access global data without passing props at every level. const value = useContext(MyContext); 🔹 useNavigate – Used for programmatic navigation between pages (React Router). const navigate = useNavigate(); 💡 Mastering these hooks will make your React development faster, cleaner, and more powerful. #ReactJS #WebDevelopment #Frontend #JavaScript #ReactHooks #Programming #Developers #ReactNative #MobileDevelopment #Developers #LearningInPublic

Early in my journey, I believed choosing a framework was about following trends and popularity. With experience, I realized something more important great software starts with understanding the problem first. Every modern web project begins with a simple but powerful question 🤔 React or Next.js? React taught me flexibility and freedom. It allows you to shape the UI exactly the way you imagine it. Next.js taught me scalability and structure. It focuses on performance, optimization, and building applications ready for real users. It is not about which one is better. It is about choosing the right tool for the right purpose. The real skill as a developer is knowing when to use each and why. Curious to know What is your go to choice and what made you choose it? #WebDevelopment #FrontendDevelopment #React #NextJS #JavaScript #TypeScript #WebDeveloper #SoftwareEngineering #FullStackDevelopment #Programming #CodingJourney #DeveloperLife #TechCommunity #ModernWeb #WebDesign #UIUX #Performance #Scalability #Learning #CareerGrowth #TechSkills #DeveloperMindset #BuildInPublic #CodingLife #OpenSource #WebApps #TechTrends #SoftwareDevelopment #EngineeringLife

💡 React Architecture Question for Fellow Developers While working with React applications, one common pattern we all follow is placing the entire application logic inside the src folder. From what I understand, this helps with: Clear separation between source code and configuration Predictable builds with bundlers like Vite/Webpack Better scalability and maintainability as applications grow That said, I’m curious to hear from the community 👇 ➡️ What are your key reasons or best practices behind structuring React projects around the src folder? ➡️ Have you ever deviated from this convention in real-world or enterprise projects? Looking forward to learning from different perspectives and experiences 🚀 #ReactJS #FrontendDevelopment #JavaScript #WebArchitecture #SoftwareEngineering #LearningAndSharing #Developers

🚀 React Devs — Stop Getting Confused Between Props & State! Most beginners mix these two and that’s where bugs are born 🐛 If you understand this clearly, your React fundamentals become STRONG 💪 🔥 Props vs State — explained simply: 👉 Props • Used to pass data between components • Read-only (cannot be changed) • Makes components reusable 👉 State • Manages component’s own data • Mutable (can be updated) • Controls UI behavior & re-rendering 📌 Golden Rule: ➡️ Props flow DOWN ➡️ State lives INSIDE If you’re learning React or revising fundamentals, save this post 📌 Share it with a friend who’s starting React 👨💻👩💻 👇 Comment “REACT” if you want more posts like this 🔁 Follow me for daily Frontend / React concepts made simple #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript #ReactHooks #PropsVsState #Coding #Developer #LearnInPublic #LinkedInTech

Built a Todo App using React + Context API! This project focuses on managing global state without external libraries. Users can add, update, and delete todos while the state is shared across components using the Context API. Highlights: 🔹 Add / Edit / Delete Todos 🔹 Global State Management with Context API 🔹 Clean Components & UI 🔹 React Hooks for Logic & Updates This project helped me improve my understanding of state sharing, component communication, and React architecture patterns. gitHub Repo : https://lnkd.in/dnQkfKqA #React #ContextAPI #JavaScript #WebDevelopment #Frontend #StateManagement #Developer #Coding #Projects #LearningInPublic #ReactJS #Programming #BuildInPublic #100DaysOfCode #CodeNewbie