How to handle the unmounting phase in React

🚀 Preventing Default Form Submission (React Development) This code demonstrates how to prevent the default form submission behavior in React. The `handleSubmit` function is called when the form is submitted. `event.preventDefault()` is called to prevent the browser from reloading the page. This allows the React component to handle the form submission logic. This is crucial for single-page applications where you want to handle form submissions without a full page refresh. 👉Download our app to access 10,000+ concise concepts, 60+ subjects and 4,000+ articles — explore now. 📱App : https://lnkd.in/gefySfsc 🌐 Visit our website for more resources. 🌐 Website : https://lnkd.in/guvceGZ3 👉 Learn smarter — 10,000+ concise concepts, 4,000+ articles, and 12,000+ topic-wise quiz questions, personalized by AI. Dive in now! 📱 Get the app: https://lnkd.in/gefySfsc 🌐 Explore more on our website. 🌐 Website : https://lnkd.in/guvceGZ3 #ReactJS #Frontend #WebDev #React #professional #career #development

🚀 The Mounting Phase of a React Component The mounting phase is the first phase of a React component's lifecycle, when it is being created and inserted into the DOM. The methods involved in this phase are: `constructor`, `static getDerivedStateFromProps`, `render`, and `componentDidMount`. The `constructor` is used for initializing state. `getDerivedStateFromProps` is called before rendering, both on the initial mount and on subsequent updates. `componentDidMount` is called after the component is inserted into the DOM. 👉Download our app to access 10,000+ concise concepts, 60+ subjects and 4,000+ articles — explore now. 📱App : https://lnkd.in/gefySfsc 🌐 Visit our website for more resources. 🌐 Website : https://lnkd.in/guvceGZ3 👉 Learn smarter — 10,000+ concise concepts, 4,000+ articles, and 12,000+ topic-wise quiz questions, personalized by AI. Dive in now! 📱 Get the app: https://lnkd.in/gefySfsc 🌐 Explore more on our website. 🌐 Website : https://lnkd.in/guvceGZ3 #ReactJS #Frontend #WebDev #React #professional #career #development

🚀 Rendering Lists with Array.map() (React Development) The `Array.map()` method is commonly used to iterate over an array and transform each element into a React component. Inside the `map` function, you create the JSX for each item in the list. Remember to add the `key` prop to the outermost element returned by the `map` function. The `key` prop should ideally be a unique identifier from your data (e.g., an ID from a database). 🌟 Smart learning > Hard working 🚀 Accelerate your tech journey — 10k+ bite-sized concepts, 4k+ deep-dive articles, 12k+ quizzes! 📱 Get the app: https://lnkd.in/gefySfsc 💻 Explore more: https://techielearn.in #ReactJS #Frontend #WebDev #React #professional #career #development

🚀 Typing Custom Hooks in React with TypeScript Custom hooks in React with TypeScript benefit greatly from type definitions. Defining the types of the arguments and the return value of the hook ensures that it's used correctly throughout the application. This enhances code reusability and reduces the risk of type-related errors. When designing custom hooks, consider the different scenarios in which they might be used and create flexible and well-typed interfaces. 💡 Sharpen your skills, expand your horizons! 🌟 Everything tech in one place — 10k concepts, 4k articles, 12k quizzes. Personalized by AI! 📲 Download the app: https://lnkd.in/gefySfsc 🔗 Check it out: https://techielearn.in #ReactJS #Frontend #WebDev #React #professional #career #development

🚀 React Hooks: useEffect The `useEffect` hook is used to perform side effects in functional components, such as fetching data, setting up subscriptions, or directly manipulating the DOM. It takes a function as an argument, which is executed after every render by default. You can also provide a dependency array as a second argument to control when the effect is executed. If the dependency array is empty, the effect will only run once after the initial render. `useEffect` replaces lifecycle methods like `componentDidMount`, `componentDidUpdate`, and `componentWillUnmount` in functional components. ⚡ Your career growth starts with daily learning! 🔥 Transform your learning — 10,000+ concepts, 4,000+ articles, 12,000+ questions. Smart. Fast. Personalized! 📲 Download the app: https://lnkd.in/gefySfsc 🌐 Website: https://techielearns.com #ReactJS #Frontend #WebDev #React #professional #career #development

🚀 Forms in React: Controlled Components In React, form elements are typically controlled components, meaning their value is controlled by React state. When the user enters data into a form element, the event handler updates the corresponding state variable. This ensures that React has complete control over the form's data. Controlled components make it easier to validate form input, handle form submissions, and manage the overall state of the form. ⚡ Transform your career with daily micro-learning! 🎯 Learn efficiently — 10k concise concepts + 4k articles + 12k quiz questions. AI-personalized learning! 📲 Download the app: https://lnkd.in/gefySfsc 💡 Discover more: https://techielearn.in #ReactJS #Frontend #WebDev #React #professional #career #development

🚀 Built ReVoice – a smart Text-to-Speech web app! While people traveling by car or bus can easily read or use note-taking apps, those on bikes, scooters, or in crowded public transport can’t. That’s why I built ReVoice — a hands-free tool that converts text or essays into natural speech, making learning and revision possible anytime, anywhere. 🎧 💻 Built using: React (Frontend) & Node.js (Backend) 🔊 Key Features: – Paragraph-wise playback – Adjustable speed control – Repeat count for each section – Clean, responsive UI 💭 Designed to help students and readers listen instead of read! 🧠 Tech Stack: React | Node.js | CSS | Web Speech API 🌐 Check it out on GitHub 👉 https://lnkd.in/g-3uDG6z #WebDevelopment #React #NodeJS #TTS #AI #StudentProjects #Frontend #Backend #LearningOnTheGo

“My React app was fast... until it wasn’t.” A few months ago, I built a dashboard that looked great — until users started complaining: “The page freezes when I type.” “Filters are slow.” That’s when I realized — I wasn’t writing slow code, I was writing unoptimized code. Here’s what I learned about React optimization the hard way 👇 1️⃣ useMemo & useCallback — My performance saviors One of my components was recalculating an expensive array filter on every keystroke. A simple useMemo around it reduced renders from 30+ to just 1. Lesson? Don’t let React “rethink” what it already knows. 2️⃣ React.memo — The silent hero My “UserCard” component kept re-rendering even when data didn’t change. I wrapped it with React.memo — boom, 60% faster UI updates. Sometimes the best optimization is just not doing extra work. 3️⃣ Lazy Loading — Don’t serve the whole buffet at once 🍽️ Why load the entire app when a user just opened the homepage? Code splitting with React.lazy() made my initial load time 40% faster. 4️⃣ List Virtualization — Rendering smartly, not heavily I had 5,000+ rows in a table. After using react-window, it only rendered what’s visible on screen. Feels like magic — but it’s just smart engineering. 5️⃣ Small things matter too Inline functions, unstable keys, too many re-renders — these small mistakes add up like compound interest (but in a bad way 😅). At the end of the day, optimization isn’t about “making React faster.” It’s about making your user’s experience smoother. If you’re learning React like me — focus not just on “how to build”, but also on “how to make it feel effortless”. I share practical React learnings, interview insights & real project experiences here. If that’s your vibe, hit follow — let’s grow together as smarter devs 👨💻💬 #ReactJS #WebDevelopment #Frontend #Performance #JavaScript #Optimization #LearningJourney #ReactHooks

💥 𝗜𝘀 𝗬𝗼𝘂𝗿 𝗥𝗲𝗮𝗰𝘁 𝗔𝗽𝗽 𝗦𝗹𝗼𝘄? 𝗛𝗲𝗿𝗲’𝘀 𝗛𝗼𝘄 𝘁𝗼 𝗠𝗮𝗸𝗲 𝗜𝘁 𝗕𝗹𝗮𝘇𝗶𝗻𝗴 𝗙𝗮𝘀𝘁! 🚀 ⚛️ 𝗠𝗮𝗸𝗲 𝗬𝗼𝘂𝗿 𝗥𝗲𝗮𝗰𝘁 𝗔𝗽𝗽 𝗙𝗹𝘆 🚀 Even the best React apps slow down sometimes. But you can fix it with these 5 pro-level tweaks 👇 🔁 𝗖𝘂𝘁 𝗥𝗲-𝗿𝗲𝗻𝗱𝗲𝗿𝘀 Use React.memo, useCallback, useMemo — your new BFFs for smoother UI. 📃 𝗩𝗶𝗿𝘁𝘂𝗮𝗹𝗶𝘇𝗲 𝗟𝗶𝘀𝘁𝘀 Why render 1000 items when only 10 are visible? Use react-window. 🛑 𝗟𝗮𝘇𝘆 𝗟𝗼𝗮𝗱 𝗙𝗧𝗪 React.lazy + Suspense = less JS on first load, faster app. 🎯 𝗨𝘀𝗲 𝗖𝗼𝗻𝘁𝗲𝘅𝘁 𝗦𝗺𝗮𝗿𝘁𝗹𝘆 Don’t put fast-changing data in Context — it’ll slow everything. 🔍 𝗠𝗲𝗮𝘀𝘂𝗿𝗲, 𝗗𝗼𝗻’𝘁 𝗚𝘂𝗲𝘀𝘀 React DevTools > Hunches. Always profile before optimising. 💡 𝑇𝑖𝑛𝑦 𝑡𝑤𝑒𝑎𝑘𝑠 = 𝑚𝑎𝑠𝑠𝑖𝑣𝑒 𝑝𝑒𝑟𝑓𝑜𝑟𝑚𝑎𝑛𝑐𝑒 𝑤𝑖𝑛𝑠. What’s your secret React performance tip? ⚙️ credit - Chetan Khulage #React #MERN #WebDev #Frontend #Coding #Performance #JavaScript #TechInterview #Developers

Most devs on LinkedIn are looking for hacks They want shortcuts to "build faster" so they copy from YouTube or AI But after building scalable React apps for ~3 years Here's the truth: Copying won't teach you how to structure your React components. ‎ ‎Here's the 7 step process I use to structure my code (and make it modular): ‎ ‎1. Break down the UI into components. ‎↳ Each piece should have a clear, single job. ‎ ‎2. Separate logic from UI. ‎↳ UI renders, hooks hold logic, stores hold state. ‎3. Design components with props ‎↳ Keep components flexible with props ‎ ‎4. Manage state efficiently. ‎↳ Avoid prop drilling → use Zustand, Redux Toolkit ‎ 5. Build for scalability. ↳ Think of your components as building blocks for the entire system, not one page. 6. Keep your files organized and consistent. ↳ A clear folder structure makes your code easy to find and update. ‎ 7. Document your patterns. ↳ A few notes or a simple README saves you a whole LOT upfront. ‎This is "Thinking in React." 📌 Once your code has structure, everything else flows easily Now tell me... Which one of these (1-7) made you rethink how you build apps? 👀 --- Read this far? Thank you. Leave a comment with your thoughts or repost if this was useful ♻️ ‎ ‎P.S. Do you think modular code speeds up development?