Fixing Multi-Tab State Issues in React Apps

Your React app feels slow, and you have no idea why. The truth is, it is probably re-rendering 10x more than it should be. React core philosophy is that UI is a function of state. When state changes, React re-evaluates the component tree. But if you are not careful, a single state change at the top of your tree can trigger a massive wave of unnecessary re-renders all the way down to the bottom. Here are the 3 most common reasons your React app is re-rendering too much: 1. Passing new object references in props. If you pass an inline object or function like style={{ color: 'red' }} or onClick={() => doSomething()}, React sees a brand new reference on every single render. Even if the contents are identical, React thinks the prop changed. 2. State lifted too high. If you have a form input that updates on every keystroke, and its state lives in a parent component alongside heavy data tables, typing one letter re-renders the entire table. 3. Missing memoization. Complex calculations or heavy child components that do not depend on the changed state will still re-render by default. React is fast, but it is not magic. Example: Instead of passing inline functions like this: <Button onClick={() => handleSubmit()} /> Use useCallback to keep the reference stable: const handleSubmit = useCallback(() => { ... }, []); <Button onClick={handleSubmit} /> Key takeaways: - Keep state as close to where it is used as possible. - Use memo for expensive child components. - Use useMemo and useCallback to preserve reference equality for objects and functions passed as props. #reactjs #webdevelopment #frontend #javascript #performance #softwareengineering #coding #webdev #reactdeveloper #programming

Your React app is slower than it needs to be. Here's how to fix it. Most devs write React the way they learned it — and never revisit it. The result? Unnecessary re-renders, bloated bundles and lists that freeze on scroll. In this carousel I cover 5 patterns I apply to every React project: → useCallback & useMemo — when to use them (and when not to) → Why state lifting is silently killing your render tree → Code splitting: route-level is the highest ROI change you can make → Virtualisation for long lists — 10,000 rows in under 5ms → The performance checklist, in priority order Save this. Your users will notice the difference. If you found this useful, follow me for weekly React & full-stack tips. What's your go-to React performance trick? Drop it in the comments #ReactJS #ReactPerformance #FrontendDevelopment #WebDevelopment #JavaScript #TypeScript #SoftwareEngineering #Programming #WebPerformance #ReactNative #TechTips #FullStackDeveloper #CodeQuality #DeveloperTips #Frontend

I used to think I understood React… until I had to pass the same state through 3–4 components just to control one small thing 😅 It worked, but it didn’t feel right. So instead of jumping to another tutorial, I tried to actually "understand the problem" and that led me to the Context API. To keep things simple, I built a tiny “bulb toggle” app 💡 At first, everything was prop-based. Then I switched to Context… and the difference was obvious. Now: 1. I’m not passing props through unnecessary layers 2. Components feel more independent 3. The code is easier to read and reason about But I also learned something important while doing this: 👉 Context is helpful, but it’s not a replacement for everything If the state is simple and only needed in a few places, props are still totally fine. Context starts to make sense when multiple parts of your app need the same data. Still early in my journey, but this was one of those small moments where things started to click. If you’ve worked with Context before -> 👉 how do you decide between props, Context, or other state tools? #learninginpublic #reactjs #webdevelopment #javascript #frontenddevelopment

Just published an article on React Custom Hooks as part of my learning journey! As I continue exploring modern frontend development, I learned how React Custom Hooks help simplify code and improve reusability in applications. Instead of repeating the same logic across components, custom hooks allow us to extract and reuse logic in a clean and scalable way — making our code more maintainable and efficient. In this article, I covered: What React Custom Hooks are Why they are important in real-world applications How to build a custom hook (useFetch) Best practices and key rules to follow If you're also learning React, I highly recommend checking out w3schools.com for clear and beginner-friendly explanations. This was a great learning experience for me as I continue my journey in React and full-stack development 👉 I’d love to hear your thoughts and feedback! #React #ReactJS #JavaScript #FrontendDevelopment #WebDevelopment #ReactHooks #Programming #SoftwareEngineering #StudentDeveloper #LearningJourney #SLIIT #W3Schools

React taught me something no tutorial ever will… Users don’t care how complex your app is. They only care if it works smoothly. They won’t see: the state you managed across 5 components the Redux logic keeping everything in sync the hours spent fixing one tiny bug the edge cases you handled silently If everything works perfectly… 👉 they notice nothing. And that’s the goal. Because in frontend, a seamless UI is just hundreds of invisible problems solved. Not gonna lie — it can feel underrated sometimes. But there’s a different kind of satisfaction in knowing: You turned messy logic into something simple for the user. That’s real development. Frontend devs — what’s something you’ve fixed that no one will ever notice? 👇 #ReactJS #Redux #FrontendDeveloper #DeveloperLife #BuildInPublic #CodingJourney #ReactJS #Redux #FrontendDevelopment #DeveloperLife #BuildInPublic #TechCareers #SoftwareDeveloper

🚀 Built a React App Using useReducer ⚛️ I recently built a "React Quiz" app to strengthen my understanding of state management in React. 🧠 Key learnings: Managing complex state with useReducer Handling async data (loading questions from a mock API) Managing loading, error, and ready states ⚡ Answer selection & smooth navigation between questions Tracking progress 📊 Completing & restarting the quiz 🔁 Implementing a countdown timer using useEffect ⏱️ 💡 This project helped me understand when to use useReducer over useState for more structured and scalable state logic. 🔗 GitHub Repo: https://lnkd.in/g8VeyXhi Feedback is welcome 🙌 #React #JavaScript #FrontendDevelopment #WebDevelopment #ReactJS #LearningByBuilding

I almost shipped a slow React app. Not broken. Not buggy. Just… slow. Everything worked. But something felt off — clicks felt delayed, UI had that subtle lag that users notice even if they can't explain it. I opened React DevTools Profiler and what I saw genuinely surprised me. One small interaction was triggering re-renders across components that had absolutely nothing to do with it. Functions being recreated on every render. Child components updating for no reason. I wasn't writing bad code. I just didn't understand what React was actually doing under the hood. Three things that changed everything for me: React.memo — child components stopped re-rendering unless their props actually changed useCallback — function references stayed stable between renders instead of being recreated every time useMemo — expensive calculations stopped running on every single render The difference was immediate. The app felt alive in a way it didn't before. No library. No major refactor. Just understanding how React works and using the tools it already gives you. If your React app feels sluggish and you haven't opened the Profiler yet — that's your next 30 minutes sorted. #ReactJS #Frontend #JavaScript #WebDevelopment #Programming

Most JavaScript bugs aren’t big, complex problems. They’re small — and often hide in places you don’t expect. Like trying to access a nested property that doesn’t exist… And suddenly your app crashes with: "Cannot read properties of undefined" This is where one small operator makes a big difference: Optional Chaining (?.) Instead of writing: user.company.address.city Write: user.company?.address?.city Now if any part of the chain is missing, your app won’t crash — it simply returns undefined. #JavaScript #TypeScript #ReactJS #CodingTips #SoftwareEngineering

Stop searching for the best language and start mastering JavaScript. One language, endless possibilities. Whether you want to build a mobile app, a 3d game, or a complex server-side system—JavaScript has a library or framework for it. As the image shows, JS isn't just for websites anymore; it’s for everything. Which JS combination are you currently mastering? Let me know in the comments! #JavaScript #WebDevelopment #Coding #Programming #ReactJS #NodeJS #TechTrends #SoftwareEngineer #FullStackDeveloper #Frontend #Backend #CodeNewbie

🚀 Just built an Advice Generator App using React ⚛️ 💡 Click. Fetch. Learn. Repeat. Every tap brings a fresh piece of real-time advice from an API 🌐 🔥 What I explored: ✨ React Hooks (useState) for state handling ⚡ Async/Await for smooth API calls 🔄 Dynamic UI updates with every click 📊 Tracking how many insights I’ve gained 🎯 Simple project, powerful learning — building consistency one mini project at a time 💪 👇 Try the concept: Keep clicking, keep learning! #WebDevelopment 🚀 #ReactJS ⚛️ #FrontendDevelopment 💻 #JavaScript 🔥 #APIs 🌐 #CodingJourney 🧠 #100DaysOfCode 💯 #BuildInPublic 📢 #UIUX ✨