React State Management: Avoid Stale Values

React red flag 🚨 (especially for beginners 👀) Both snippets increase state. Only one is reliable. ❌ Using stale state values ✅ Functional updates using previous state Works most of the time ✅ Breaks in edge cases ❌ React state is async. Respect it 🧠 Learn this early 🔥 #ReactJS #JavaScript #Frontend #CleanCode #WebDevelopment #ReactHooks

One small React mistake that causes big production bugs 🚨 Mistake: Updating state directly. This: state.count = state.count + 1 Causes unexpected behavior and hard-to-track bugs. Correct way: setCount(prev => prev + 1) React depends on immutability. Small mistakes in React can become big production issues. 👉 Beginners, save this post. #ReactJS #JavaScript #Frontend #CodingTips

Tired of stale closures in your useEffect? React's useEffectEvent is here to save the day! It lets you read the latest state inside an effect without adding it to the dependency array, eliminating clunky useRef workarounds and unnecessary re-renders. Read the full guide: https://lnkd.in/deypeSvS #ReactJS #JavaScript #WebDev

💡React Tip💡 Use ReacTree VS Code extension to quickly see a tree view of your React application components. A great way to find out the parent and child components relationships. 𝗙𝗼𝗿 𝗺𝗼𝗿𝗲 𝘀𝘂𝗰𝗵 𝘂𝘀𝗲𝗳𝘂𝗹 𝗰𝗼𝗻𝘁𝗲𝗻𝘁, 𝗱𝗼𝗻'𝘁 𝗳𝗼𝗿𝗴𝗲𝘁 𝘁𝗼 𝗳𝗼𝗹𝗹𝗼𝘄 𝗺𝗲. #javascript #reactjs #nextjs #webdevelopment

5 React.js Performance Optimization Techniques I Use on Every Project Code splitting with React.lazy() → Reduces initial bundle size by 40-60% Memoization (useMemo, React.memo) → Prevents unnecessary re-renders Virtual scrolling for large lists → Handles 10K+ items smoothly Debouncing expensive operations → Saves thousands of API calls Bundle size analysis → Catches bloat before production Performance isn't a feature—it's a requirement. Save this for your next optimization sprint! 📌 #ReactJS #WebPerformance #FrontendDevelopment #JavaScript

In my last post, I explained the difference between static and dynamic routes in Next.js. This is the follow up. Once you understand what static and dynamic routes are, the next question is what actually makes a route dynamic. Here are the most common ways routes become dynamic, often without you realizing it. 👇 Which one have you run into before? #Nextjs #React #Frontend #WebDevelopment #Javascript #Typescript #ProgrammingTips

🚀 React.js Cheat Sheet – Save This 🔖 follow : Lokesh hans Lokesh Hans A quick reference covering the most-used React concepts: components, props, state, hooks, rendering & structure. Perfect for beginners and a fast refresher for developers. 👉 #ReactJS #FrontendDeveloper #JavaScript #WebDevelopment #CodingTips

Why useEffect runs twice in React (and it’s NOT a bug) 👇 In development mode, React intentionally runs effects twice to help you: • detect side effects • enforce cleanups • avoid hidden bugs In production, it runs once. Fighting React here usually means misunderstanding React. Have you ever been confused by this behavior? #ReactJS #JavaScript #Frontend #WebDev #ReactHooks #TechLearning

Pros & Cons of useEffect in React ⚛️ ✅ Pros Great for handling side effects like API calls, subscriptions, and timers Replaces class lifecycle methods with much cleaner logic Dependency array gives control over when the effect runs Cleanup functions help prevent memory leaks ❌ Cons Dependency array can be confusing and may cause bugs or infinite loops Often overused for things that don’t really need an effect Debugging async code inside useEffect isn’t always easy Poor usage can lead to performance issues 💡 Takeaway: Use useEffect only when you’re dealing with real side effects — not as a default solution. #ReactJS #Frontend #WebDevelopment #JavaScript #ReactHooks

Today I explored Form Handling & Routing in React. Key takeaways: Managing form state with useState Implementing basic form validations Navigating between pages using BrowserRouter Building forms that actually validate and route correctly feels like a big step toward real-world applications. Onward and upward! 💪 #ReactJS #MERNStack #WebDevelopment #Frontend #LearningInPublic #JavaScript #ReactRouter