Preventing Default Form Submission in React

🚀 The Unmounting Phase of a React Component The unmounting phase is the final phase of a React component's lifecycle, when it is being removed from the DOM. The only method involved in this phase is `componentWillUnmount`. This method is used to perform any necessary cleanup, such as invalidating timers or canceling network requests. Failing to clean up resources can lead to memory leaks or other unexpected behavior. 👉 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://techielearn.in #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

🚀 State in React Components State represents the internal data of a React component that can change over time. When the state of a component changes, React re-renders the component to reflect the updated data. State is typically managed within a component using the `useState` hook in functional components or the `this.state` and `this.setState` methods in class components. Proper state management is crucial for building interactive and dynamic user interfaces in React applications. Understanding how and when to update the state is essential for efficient rendering and optimal performance. 📚 Learn something new every day — your future self will thank you! ✨ Tech mastery made simple — 10,000+ concepts, 4,000+ articles, 12,000+ quizzes. Powered by AI! 📲 Download the app: https://lnkd.in/gefySfsc 🌐 Learn more: https://techielearn.in #ReactJS #Frontend #WebDev #React #professional #career #development

🚀 𝐅𝐫𝐨𝐦 𝐂𝐮𝐫𝐢𝐨𝐬𝐢𝐭𝐲 𝐭𝐨 𝐂𝐨𝐝𝐞: 𝐌𝐲 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐉𝐨𝐮𝐫𝐧𝐞𝐲 𝐒𝐨 𝐅𝐚𝐫 When I first started learning web development, I had no idea how deep this world goes. From building static pages to managing state, handling APIs, and creating real-time chat apps, the process has been both challenging and rewarding. Today, I’m proud to say I’ve built projects I once thought were too advanced, including a 1:1 chat application with socket connections, responsive product list apps, and a learning management platform. Each project taught me something new: 🔹 𝘙𝘦𝘢𝘤𝘵.𝘫𝘴 for dynamic interfaces 🔹 𝘛𝘺𝘱𝘦𝘚𝘤𝘳𝘪𝘱𝘵 for clean and reliable code 🔹 𝘊𝘰𝘯𝘵𝘦𝘹𝘵 𝘈𝘗𝘐 for managing state efficiently 🔹 𝘕𝘰𝘥𝘦.𝘫𝘴 and 𝘔𝘰𝘯𝘨𝘰𝘋𝘉 for exploring the backend side I’m still learning every single day, and my goal is simple: 𝐛𝐮𝐢𝐥𝐝 𝐛𝐞𝐭𝐭𝐞𝐫, 𝐜𝐥𝐞𝐚𝐧𝐞𝐫, 𝐚𝐧𝐝 𝐦𝐨𝐫𝐞 𝐢𝐦𝐩𝐚𝐜𝐭𝐟𝐮𝐥 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬. If you’re a developer too, never underestimate how far small daily progress can take you. 💻✨ #react #frontenddevelopment #webdev #javascript #developerjourney #learning

🚀 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

𝗦𝘂𝗽𝗲𝗿𝗰𝗵𝗮𝗿𝗴𝗲 𝗬𝗼𝘂𝗿 𝗥𝗲𝗮𝗰𝘁 𝗔𝗽𝗽𝘀 𝘄𝗶𝘁𝗵 𝗼𝗻𝗤𝘂𝗲𝗿𝘆𝗦𝘁𝗮𝗿𝘁𝗲𝗱 𝗶𝗻 𝗥𝗧𝗞 𝗤𝘂𝗲𝗿𝘆 If you’re using𝗥𝗲𝗱𝘂𝘅 𝗧𝗼𝗼𝗹𝗸𝗶𝘁 𝗤𝘂𝗲𝗿𝘆 (𝗥𝗧𝗞 𝗤𝘂𝗲𝗿𝘆) in React, you might already know how easy it is to fetch data. But did you know you can 𝗿𝘂𝗻 𝗰𝗼𝗱𝗲 𝗮𝘀 𝘀𝗼𝗼𝗻 𝗮𝘀 𝗮 𝗾𝘂𝗲𝗿𝘆 𝘀𝘁𝗮𝗿𝘁𝘀 using onQueryStarted? This is a game-changer for: 🔹𝗢𝗽𝘁𝗶𝗺𝗶𝘀𝘁𝗶𝗰 𝗨𝗜 𝘂𝗽𝗱𝗮𝘁𝗲𝘀 🔹𝗚𝗹𝗼𝗯𝗮𝗹 𝘀𝘁𝗮𝘁𝗲 𝗺𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 🔹𝗟𝗼𝗴𝗴𝗶𝗻𝗴 & 𝗲𝗿𝗿𝗼𝗿 𝗵𝗮𝗻𝗱𝗹𝗶𝗻𝗴 ✅ 𝗪𝗵𝘆 𝗨𝘀𝗲 onQueryStarted? 🔹Gives 𝗶𝗻𝘀𝘁𝗮𝗻𝘁 𝗨𝗜 𝗳𝗲𝗲𝗱𝗯𝗮𝗰𝗸 to users 🔹Makes your apps feel 𝗳𝗮𝘀𝘁 𝗮𝗻𝗱 𝗿𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝘃𝗲 🔹Allows 𝗿𝗼𝗹𝗹𝗯𝗮𝗰𝗸 𝗼𝗻 𝗲𝗿𝗿𝗼𝗿𝘀 🔹Centralizes logic for queries and mutations 💡 𝗣𝗿𝗼 𝗧𝗶𝗽: Combine this with 𝗥𝗲𝗮𝗰𝘁 𝗤𝘂𝗲𝗿𝘆 𝗼𝗿 𝗥𝗧𝗞 𝗤𝘂𝗲𝗿𝘆 𝗰𝗮𝗰𝗵𝗶𝗻𝗴 for production-ready, scalable frontend apps. #ReactJS #ReduxToolkit #Axios #RTKQuery #FrontendDevelopment #WebDevelopment #CleanCode #JavaScript #ProTips

🚀 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

“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

🚀 Just Launched My Advanced Text Utility App (React.js)! Hi everyone! I’m excited to share my latest project — an Advanced Text Utility Application built with React.js, designed to make text editing easier, faster, and smarter! This app allows users to format, clean, and extract text with just a few clicks — all inside a smooth & modern interface. ✅ ✨ Key Features ✅ Convert to Uppercase / Lowercase ✅ Copy Text instantly ✅ Clear Text ✅ Remove Extra Spaces ✅ Extract Text from Images (OCR) ✅ Save text to .txt file ✅ Real-time Word & Character Count ✅ Live Preview ✅ Beautiful Animations ✅ Day/Night Mode Toggle Just enter text — or upload an image — and the app handles the rest! 🛠️ Tech Stack 🔹 React.js 🔹 JavaScript 🔹 Bootstrap This project helped me explore: https://lnkd.in/dJxgXcxA ✔ React components & hooks ✔ OCR text extraction ✔ File handling ✔ Dark mode UI ✔ Dynamic animations 💬 I’d love your feedback! If you’d like to try it out or want the source code, just DM me. #React #JavaScript #Frontend #Developer #webdevelopment #UI #Coding #ReactProjects #OCR #DarkMode #Innovation

💥 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