React Component Tree View with ReacTree VS Code Extension

💡 React Tip: The useEffect Bug Most Developers Ship to Production If your useEffect: 1. Runs too often 2. Or doesn’t run when you expect Chances are, the dependency array is wrong. Missing dependencies = stale data Extra dependencies = unnecessary effects Rule of thumb: 👉 Every value used inside useEffect should either be: 1. In the dependency array, or 2. Intentionally excluded with a clear reason Ignoring this is how subtle bugs sneak into production. 💬 Comment “EFFECT” if you’ve faced this 🔖 Save this for later ➕ Follow for more React tips #ReactJS #FrontendDeveloper #WebDevelopment #JavaScript #DevTips

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

Strict Mode in React.js In this quick video, I break down: → What actually checks for (double renders, unsafe side effects, deprecated APIs) → Why useEffect/cleanup runs multiple times on purpose → How it helps you write future-proof code for React 19+ → Best practices so you stop fighting it and start using it Perfect for React devs tired of mystery double renders. Watch + drop a comment: Have you embraced Strict Mode yet, or are you still disabling it? 👇 #ReactJS #ReactStrictMode #FrontendDevelopment #JavaScript #WebDevelopment #ReactHooks #React19 #CodingTips

💡 𝗧𝗶𝗽 𝗼𝗳 𝘁𝗵𝗲 𝗗𝗮𝘆 — 𝗥𝗲𝗮𝗰𝘁 𝗗𝗶𝗱 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄? In React, 𝘀𝘁𝗮𝘁𝗲 𝘂𝗽𝗱𝗮𝘁𝗲𝘀 𝘁𝗵𝗮𝘁 𝗱𝗲𝗽𝗲𝗻𝗱 𝗼𝗻 𝘁𝗵𝗲 𝗽𝗿𝗲𝘃𝗶𝗼𝘂𝘀 𝘀𝘁𝗮𝘁𝗲 𝘀𝗵𝗼𝘂𝗹𝗱 𝗮𝗹𝘄𝗮𝘆𝘀 𝘂𝘀𝗲 𝘁𝗵𝗲 𝗳𝘂𝗻𝗰𝘁𝗶𝗼𝗻𝗮𝗹 𝘂𝗽𝗱𝗮𝘁𝗲 𝗳𝗼𝗿𝗺. Instead of relying on a stale value, React gives you access to the latest state. Why it matters: - Prevents bugs caused by stale closures - Works correctly with batched updates - Makes state logic more predictable If your new state depends on the old one, the functional form is the safest choice. #React #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #SoftwareEngineering #CodingTips #BestPractices #FullstackDeveloper

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

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

Understanding useCallback can save you from unnecessary re-renders and performance headaches in React ⚛️ If you’re passing functions as props, useCallback helps keep references stable and your components efficient. Small hook. Big impact. 🚀 #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript #ReactHooks

💡 𝗧𝗶𝗽 𝗼𝗳 𝘁𝗵𝗲 𝗗𝗮𝘆 — 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 𝗗𝗶𝗱 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄? In React, 𝘂𝗽𝗱𝗮𝘁𝗶𝗻𝗴 𝘀𝘁𝗮𝘁𝗲 𝘄𝗶𝘁𝗵 𝘁𝗵𝗲 𝘀𝗮𝗺𝗲 𝘃𝗮𝗹𝘂𝗲 𝗱𝗼𝗲𝘀 𝗻𝗼𝘁 𝘁𝗿𝗶𝗴𝗴𝗲𝗿 𝗮 𝗿𝗲-𝗿𝗲𝗻𝗱𝗲𝗿. React uses "Object.is" to compare the previous and next state. If they’re the same, React skips the re-render entirely. Why this matters: - Prevents unnecessary renders - Helps you reason about performance - Explains why some "setState" calls appear to “do nothing” Understanding this makes state behavior feel far less magical. #React #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #SoftwareEngineering #CodingTips #PerformanceOptimization #FullstackDeveloper

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

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