Understanding Useref in React ⚛️ UseRef is a powerful React Hook used to store values that persist across renders without triggering re-renders. Common uses of useRef: •Storing intervals / timeouts •Accessing DOM elements •Keeping previous values •Managing things that should persist between renders In this stopwatch example: UseState handles UI updates (seconds) UseRef stores the interval ID from setInterval This ensures clean start, stop, and reset functionality without unnecessary re-renders. Perfect use case for: Timers Intervals DOM references #LearningReact #CODEHELP #ReactJS #useRef #useState #FrontendDevelopment #LearningReact #JavaScript
React useRef Hook for Persistent Values and DOM Access
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Hey there! I've posted about why React’s upcoming <ViewTransition> feature is a big deal - how it fixes jarring SPA page transitions, makes navigation feel smooth and contextual, and why once it becomes stable, abrupt “teleport-style” page changes will feel outdated. #React #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript #ViewTransition #SPA
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👋 Hi! 🌱 Today's topic - React Hook "useState". IN React, normal variables do not update the UI when their values change. so The useState hook helps us store that can change over time and ensures the UI re-renders automatically whenever the state updates. It returns: The current state value A function to update that value Uses: Counter applications Form input handling Toggle buttons and Displaying dynamic data #ReactJS #useState #frontendDevelopment #Javascript #Learningjourney.
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🚀 Understanding the useEffect Hook in React useEffect is a powerful hook used to handle side effects in functional components, such as: API calls Subscriptions & event listeners Timers Cleanup on unmount Key concepts covered ✔️ Mount → runs after initial render ✔️ Update → re-runs when dependencies change ✔️ Unmount → cleanup to prevent memory leaks ✔️ Dependency array → controls when the effect runs Strong understanding of hooks leads to cleaner, scalable, and more predictable React applications. #ReactJS #useEffect #FrontendDevelopment #JavaScript #WebDevelopment #ReactHooks #SoftwareEngineering #LearningJourney
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React performance tip that actually matters 🚀 Most re-render issues come from: ❌ Passing new objects/functions in props ❌ Unstable dependencies ❌ Unnecessary state Fix it with: ✅ memoization (when needed) ✅ stable handlers ✅ derived state 💬 Have you debugged re-renders before? Hashtags: #ReactJS #WebPerformance #FrontendEngineering #JavaScript #SoftwareDeveloper
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DAY 3| WHY DO WE ALWAYS USE CONST FOR FUNCTIONS IN REACT? 🤔 If you look at React code, you’ll see this everywhere 👇 const handleClick = () => { console.log("Clicked"); }; In React, functions are not meant to change. Using const keeps: 👉 the function fixed 👉 behavior predictable 👉 UI updates stable That’s why this pattern shows up again and again in React code. 💬 If this helped you, share your thoughts. #ReactJS #JavaScript #FrontendDevelopment #WebDevelopment #LearnInPublic #CodingJourney #SoftwareEngineering
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🚀 𝐑𝐞𝐚𝐜𝐭 𝐍𝐞𝐰 𝐇𝐨𝐨𝐤: 𝐮𝐬𝐞𝐄𝐟𝐟𝐞𝐜𝐭𝐄𝐯𝐞𝐧𝐭 ✅ React devs know the pain 😅 useEffect + dependencies often leads to: ⚠️ stale closures ⚠️ re-runs you didn’t want ⚠️ lint warnings / dependency confusion 💡 𝐄𝐧𝐭𝐞𝐫: 𝐮𝐬𝐞𝐄𝐟𝐟𝐞𝐜𝐭𝐄𝐯𝐞𝐧𝐭 ✅ lets you create stable event handlers ✅ always reads the latest props/state ✅ avoids unnecessary useEffect dependency issues ✅ perfect for callbacks like: 👉 onScroll, onClick, setInterval, subscriptions 📌 𝐈𝐝𝐞𝐚: ➡️ keep your effect reactive ➡️ keep your event logic stable This makes React code: cleaner + predictable + less buggy 💯 💬 Have you tried useEffectEvent yet? #React #ReactJS #Frontend #WebDevelopment #JavaScript #Hooks #useEffect #SoftwareEngineering
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🚀 Day 897 of #900DaysOfCode ⚛️ Understanding the Virtual DOM in React In today’s post, I’ve explained what the Virtual DOM is and why React uses it. You’ll understand: - What the Virtual DOM actually represents - How React compares changes (diffing) - Why updates become faster and more efficient - How it improves performance and user experience This concept often feels confusing at first, but once it clicks, a lot of React internals start making sense. 👇 Was Virtual DOM confusing for you when you started with React? #Day897 #learningoftheday #900daysofcodingchallenge #FrontendDevelopment #WebDevelopment #JavaScript #React #CodingCommunity #VirtualDOM
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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
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🔐 React Password Generator This is a simple React project, but it uses very useful concepts. The project helped me understand how React manages state, updates the UI, and works with real-world features like copy-to-clipboard. Concepts used: -React Hooks (useState) -Controlled inputs -Event handling -Random number generation -Clipboard API 📂 GitHub Repo: https://lnkd.in/gu3fdw_f #ReactJS #FrontendDevelopment #JavaScript #LearningByDoing #WebDevelopment
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Your API can be fast. Your UI can still feel slow. Why? Unnecessary re-renders No memoization No lazy loading Heavy initial bundle React performance is NOT magic. It’s discipline. #w3school #ReactJS #FrontendPerformance #WebOptimization #MERNStack #ReactHooks #JavaScript
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