🚀 Understanding React Context API – Simple Visual Guide React Context helps us avoid prop drilling and share data across deeply nested components with ease. This diagram shows the 3 core steps of using Context in React: 🔹 1. Create Context Use createContext() to define shared state or data. 🔹 2. Provide Context Wrap your component tree with Context.Provider and pass values. 🔹 3. Consume Context Access the data anywhere using the useContext() hook. 📌 Key takeaway: Any component inside the Provider tree can directly access shared data — no need to pass props level by level. #ReactJS #ContextAPI #WebDevelopment #FrontendDevelopment #JavaScript #ReactLearning #Programming
React Context API Simplified: 3 Easy Steps
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I spent hours reinventing the wheel. 🤦♂️ I was building a form with complex validation and conditional logic. I found myself repeating the same patterns in different components. It was messy and hard to maintain. I discovered the power of custom React hooks! 🎣 They allowed me to extract and reuse stateful logic. I created a hook called `useForm` that encapsulated all the form logic. Now, my components are cleaner and more maintainable. Here's how I did it: 💡 Key Takeaway: Custom hooks help you reuse stateful logic and keep your components clean and focused. ⚛️ Have you used custom hooks before? What was your experience? 👇 #JavaScript #Frontend #Programming #WebDev #Coding #React
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Today I learned about callback functions and constructor functions in JavaScript. Understanding how functions can be passed as arguments (like in DOM event handling) and how objects are created using constructor functions really improved my clarity on writing reusable code. Step by step, getting better 💡 #JavaScript #WebDevelopment #LearningInPublic #Frontend #DOM #Programming #JSBasics #DeveloperJourney
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🚀 React Hooks Mastery Series - Pattern #8 setTimeout and setInterval in React can cause memory leaks! Here's how to do timers properly with custom hooks. The problem: Forgetting to cleanup timers causes bugs that are hard to debug. The solution: Hooks that handle cleanup automatically. Use these for: ✅ Auto-save features ✅ Polling data updates ✅ Notification timeouts ✅ Animation delays I once spent 2 hours debugging why a component kept updating after unmounting. One missing cleanup. Never again. These hooks encapsulate the cleanup logic so you never forget. Set it and forget it—the right way! #ReactJS #JavaScript #WebDevelopment #FrontendDevelopment #ReactHooks #BestPractices #CleanCode #Programming #WebDev #MemoryLeaks
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👋 Hey LinkedIn fam! Today I learned the difference between Type and Interface in TypeScript, something every TS developer should understand! ⚙️ 🔹 Interface Used to describe the shape of an object Supports extension (inheritance) Best for object structures & class contracts 🔹 Type More powerful & flexible Can describe primitives, unions, tuples, functions, and objects Great when you need complex type compositions 📌 Simple rule: Use interface when modeling objects Use type when you need flexibility Loving how TypeScript improves code safety and developer confidence 🚀 #TypeScript #WebDevelopment #Frontend #LearningJourney #JavaScript #Programming
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🚫 Extra spaces can break your JavaScript code! Ever faced unexpected bugs because of hidden spaces in user input? The trim() method in JavaScript is a simple but powerful solution to clean strings by removing unwanted spaces from both ends. 💡 Perfect for: ✔ Form validation ✔ User input handling ✔ Real-world projects Small concepts. Big impact. Consistency > Complexity 🚀 #JavaScript #WebDevelopment #FrontendDevelopment #LearnJavaScript #CodingTips #JavaScriptBasics #Developers #Programming
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𝗨𝗻𝗱𝗲𝗿𝘀𝘁𝗮𝗻𝗱𝗶𝗻𝗴 𝗘𝘃𝗲𝗻𝘁 𝗣𝗿𝗼𝗽𝗮𝗴𝗮𝘁𝗶𝗼𝗻 𝗶𝗻 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁- Ever clicked a button inside a card and wondered what actually happens behind the scenes? That is event propagation at work. 𝗘𝘃𝗲𝗻𝘁 𝗽𝗿𝗼𝗽𝗮𝗴𝗮𝘁𝗶𝗼𝗻 describes how a single event travels through the DOM hierarchy. 𝗥𝗲𝗮𝗹-𝗪𝗼𝗿𝗹𝗱 𝗘𝘅𝗮𝗺𝗽𝗹𝗲: Imagine a parent card component containing multiple child buttons. When you click a button: • The button receives the event first • The event then moves to the parent card • It continues upward through the DOM 𝐓𝐡𝐢𝐬 𝐦𝐨𝐯𝐞𝐦𝐞𝐧𝐭 𝐨𝐟 𝐞𝐯𝐞𝐧𝐭𝐬 𝐢𝐬 𝐩𝐫𝐨𝐩𝐚𝐠𝐚𝐭𝐢𝐨𝐧. 𝗧𝗵𝗲𝗿𝗲 𝗮𝗿𝗲 𝟯 𝗽𝗵𝗮𝘀𝗲𝘀: 1. 𝗖𝗮𝗽𝘁𝘂𝗿𝗶𝗻𝗴 𝗣𝗵𝗮𝘀𝗲 (Top --> Down): The event travels from the root element toward the target. 2. 𝗧𝗮𝗿𝗴𝗲𝘁 𝗣𝗵𝗮𝘀𝗲: The event reaches the exact element that was clicked. 3. 𝗕𝘂𝗯𝗯𝗹𝗶𝗻𝗴 𝗣𝗵𝗮𝘀𝗲 (Bottom --> Up): The event bubbles back up to the root. Use 𝐞𝐯𝐞𝐧𝐭.𝐬𝐭𝐨𝐩𝐏𝐫𝐨𝐩𝐚𝐠𝐚𝐭𝐢𝐨𝐧() to prevent parent handlers from executing. #JavaScript #FrontendDevelopment #ReactJS #WebDevelopment #Programming #TechLearning #SoftwareEngineering #SystemDesign #DOM #FrontendInterview
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JavaScript Array Functions – map() vs filter() 🔍 One of the most common confusions for JavaScript learners is understanding the difference between map() and filter(). In this post, I’ve explained: 1. map() → transforms each element in an array 2. filter() → selects elements based on a condition Both return new arrays, but they are used for different purposes in real-world applications. 📌 This is Day 3 of my JavaScript Array Functions series. More concepts coming next 👨💻🚀 #JavaScript #JS #WebDevelopment #FrontendDeveloper #BackendDeveloper #FullStackDeveloper #LearnJavaScript #Programming #Coding #DeveloperCommunity #TechContent #100DaysOfCode
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🚀Day 78 of Cohort2.0 Today's class was about More on React with Sarthak Sharma at Sheryians Coding School In This session, we put Context API into action by building real features on top of it. This asssion focused on sharing state across components, triggering updates, and handling side effects cleanly. we saw how Context behaves under real usage, where it holds up, and where It starts to crack. 🚨 A task was given to build a products page usnig context API where all the data is centralized and shared among all the components. #responsiveness #responsivedesig #css #scss #html #Cohort2 #webdevelopment #Javascript #react #DOM #frontend
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One JavaScript concept that finally clicked for me was closures. Not the textbook definition. The practical part. A function remembers the variables around it, even after that outer function is done running. So state can live quietly where you don’t see it, but it’s still there. At first this felt like magic. Then it felt dangerous. Now it feels useful. Most bugs I’ve had with closures weren’t because JS was weird. They were because I forgot what my code was holding onto. #JavaScript #Coding #Programming
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Days 12-13: Array mastery + Next.js prep. DSA Progress: Solid array revision before advanced binary search: Remove Duplicates from Sorted Array (Easy, Two Pointers) Rotate Array by 1 (Medium, Two Pointers) Rotate Array by D (Medium, Two Pointers) Move Zeros to End (Easy, Two Pointers) Linear Search (Basic) Find Union of Sorted Arrays (Medium) Missing Number Two pointers clicking—foundation rock solid. Dev Update: No hands-on coding. Watched Next.js intro videos to plan series start after backend completion. 2-Day Reflection: 7 array problems = bulletproof basics. Next.js research sets up future sprint. Days 12-13 crew—drop your progress! 👇 Tomorrow: Advanced binary search + Next.js kickoff. #100DaysOfCode #DSA #Arrays #TwoPointers #WebDevelopment #NextJS #CodingLife #SoftwareEngineering #TechTwitter #Programming #JavaScript #FullStackDeveloper #CodeNewbie #DeveloperCommunity #LearnToCode #TechCareer #BuildInPublic
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