"Mastering useEffectEvent: A React 19.2 Game Changer"

useEffect running on mount when you don't want it to? useUpdateEffect solves this - it works like useEffect but skips the first render. Great for form validation, API calls, and analytics tracking. This deep dive covers two implementation approaches with real-world examples and performance tips. Check it out: https://lnkd.in/gez3ChgT #React #JavaScript #WebDev

🚀 Ever wondered how JavaScript “remembers” things even after a function finishes running? That’s the magic of Closures ✨ In simple terms: 👉 A closure gives you access to an outer function’s scope from an inner function, even after the outer function has returned. 📦 Think of it like a backpack 🎒 The inner function carries the outer function’s variables wherever it goes! Each time you call add(), it remembers the value of count that’s a closure in action 🔥 💡 Real-world uses: • Data privacy (like private variables) • Maintaining state • Event handlers & callbacks Closures aren’t just theory they’re what make JS powerful and flexible. #JavaScript #WebDevelopment #CodingTips #Frontend #Closures #DeveloperLearning

Thales Domingues Tip 👇 Finally, ⚛️ React has provided a way to access the latest props and states in effects (useEffect/useLayoutEffect) without causing re-renders. The useEffectEvent hook will help achieve this. The hook helps extract non-reactive logic from useEffect webhooks. Non-reactive logic refers to when we don't want to perform any action. The useEffectEvent hook wraps a callback function and returns an Effect Event function, and whenever it gets called, the function has access to the latest props and state. So, it won't trigger a re-render, unlike in the case of dependency arrays. But it's not the replacement of the dependency array, as that is usually required to trigger effects. You should try it in your workflow as per the use cases. #react #javascript #frontend #hooks

React's New <Activity> Component 🔥: Say Goodbye to Lost State! Are you still using the && operator or display: none to hide components? That's the old way! The <Activity> component is a massive step up from traditional Conditional Rendering. When you set it to mode="hidden", here's what happens: 💾 It preserves the component's State and DOM structure (State Preserved). 🧹 It cleans up Side Effects like useEffect, ensuring no background performance drain (Effects Cleaned Up). 🚀 It's perfect for Fast Navigation and Instant State Restoration in complex UIs like Tabbed Interfaces, Carousels, or Wizard Forms. Check out the comparison image to see the difference between the old method (where state is lost) and the new Activity component! What are your thoughts on this new concept? Are you planning to use the <Activity> component in your next project? Let me know in the comments! #React #React19 #ActivityComponent #Frontend #WebDevelopment #JavaScript #PerformanceOptimization #StateManagement #NewReactFeatures #Code #Programming

Most React bugs are not logic problems. They are invisible re-renders draining performance and creating jank 🔄 Re-renders are triggered when props or state change, when context values update, or when parent components refresh. Without measuring, you ship slow UIs and never see the real cost. Start with visibility: count renders, inspect flame graphs, and log why a component updated. Then remove wasted work by stabilizing references, memoizing pure components, and lifting only the state that must change. Keep your tree predictable. Small practices like using keys correctly, avoiding new inline objects in JSX, and splitting heavy components pay back quickly. Action plan today: instrument one screen, identify the noisiest component, and cut a render path. Your users feel the difference immediately. ⚡ #ReactJS #Performance #FrontendDevelopment #WebDev #JavaScript

Built a fun little Score Keeper using JavaScript and Bulma! This project helped me dive deeper into DOM manipulation, event handling, and clean UI design. Here’s a short demo, always satisfying to see code come to life! ⚡ #Coding #JavaScript #WebDev #Bulma #ProjectShowcase

🌟 Day 13 — Event Bubbling & Capturing in JavaScript Today I explored how events travel through the DOM — a key concept for writing clean, efficient, and bug-free JavaScript code. 🔹 Event Capturing (Top → Bottom): The event starts from the window → document → parent → child. Use addEventListener(event, handler, true) to catch it during the capture phase. 🔹 Event Bubbling (Bottom → Top): The event starts at the target element and bubbles up to its ancestors. This is the default phase for most events — use addEventListener(event, handler, false) or skip the third parameter. 🔹 Bonus Tip: Use event.stopPropagation() to stop the event from moving further — but use it wisely! 🧠 Key Takeaway: Understanding event flow helps you: - Prevent duplicate triggers - Simplify dynamic UI handling with event delegation #JavaScript #WebDevelopment #DOM #CodingJourney #mern #LearningEveryday

𝗪𝗵𝗮𝘁'𝘀 𝗻𝗲𝘄 𝗶𝗻 𝗥𝗲𝗮𝗰𝘁 𝟭𝟵? The 𝘂𝘀𝗲𝗔𝗰𝘁𝗶𝗼𝗻𝗦𝘁𝗮𝘁𝗲 hook! This hook is a game-changer for managing form actions and state in functional components. It simplifies the process of handling form submissions, validations, and state updates. 𝗪𝗵𝘆 𝘂𝘀𝗲 𝗶𝘁? • Streamlines form handling by combining state management and actions in one place. • Reduces boilerplate code for form submissions and validations. • Enhances readability and maintainability of your form components. 𝗛𝗼𝘄 𝘁𝗼 𝘂𝘀𝗲 𝗶𝘁? → Import the hook from 'react': 𝗶𝗺𝗽𝗼𝗿𝘁 { 𝘂𝘀𝗲𝗔𝗰𝘁𝗶𝗼𝗻𝗦𝘁𝗮𝘁𝗲 } 𝗳𝗿𝗼𝗺 '𝗿𝗲𝗮𝗰𝘁' → Initialize the hook with default state and actions: 𝗰𝗼𝗻𝘀𝘁 [𝘀𝘁𝗮𝘁𝗲, 𝗮𝗰𝘁𝗶𝗼𝗻𝘀] = 𝘂𝘀𝗲𝗔𝗰𝘁𝗶𝗼𝗻𝗦𝘁𝗮𝘁𝗲({ 𝗱𝗲𝗳𝗮𝘂𝗹𝘁𝗦𝘁𝗮𝘁𝗲: 𝗶𝗻𝗶𝘁𝗶𝗮𝗹𝗦𝘁𝗮𝘁𝗲 }) → Use 𝘀𝘁𝗮𝘁𝗲 to manage form state and 𝗮𝗰𝘁𝗶𝗼𝗻𝘀 to handle form actions. 𝗘𝘅𝗮𝗺𝗽𝗹𝗲: 𝗰𝗼𝗻𝘀𝘁 [𝗳𝗼𝗿𝗺𝗦𝘁𝗮𝘁𝗲, 𝗳𝗼𝗿𝗺𝗔𝗰𝘁𝗶𝗼𝗻𝘀] = 𝘂𝘀𝗲𝗔𝗰𝘁𝗶𝗼𝗻𝗦𝘁𝗮𝘁𝗲({ 𝗱𝗲𝗳𝗮𝘂𝗹𝘁𝗦𝘁𝗮𝘁𝗲: { 𝗻𝗮𝗺𝗲: '', 𝗲𝗺𝗮𝗶𝗹: '' }, 𝗮𝗰𝘁𝗶𝗼𝗻𝘀: { 𝘀𝗲𝘁𝗡𝗮𝗺𝗲: (𝗻𝗮𝗺𝗲) => { 𝗳𝗼𝗿𝗺𝗦𝘁𝗮𝘁𝗲.𝗻𝗮𝗺𝗲 = 𝗻𝗮𝗺𝗲 }, 𝘀𝘂𝗯𝗺𝗶𝘁: () => { 𝗮𝗹𝗲𝗿𝘁('𝗙𝗼𝗿𝗺 𝘀𝘂𝗯𝗺𝗶𝘁𝘁𝗲𝗱!') } } }) 𝗦𝗮𝘃𝗲 𝘁𝗶𝗺𝗲, 𝗿𝗲𝗱𝘂𝗰𝗲 𝗯𝗼𝗶𝗹𝗲𝗿𝗽𝗹𝗮𝘁𝗲, 𝗮𝗻𝗱 𝗶𝗺𝗽𝗿𝗼𝘃𝗲 𝘂𝘀𝗲𝗿 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲! #React19 #ReactHooks #FormHandling #JavaScript #WebDevelopment #TechTips #CodingCommunity

Keyboard Events in JavaScript Keyboard events make web pages more interactive by detecting when users press or release keys. These events help in creating shortcuts, form controls, and smooth navigation experiences. ✨The three main keyboard events are: 🔹keydown – triggered when a key is pressed. 🔹keypress – triggered while the key is held down (mostly for character keys). 🔹keyup – triggered when the key is released. #JavaScript #WebDevelopment #Coding #WebDesign #FrontendDevelopment #Stemup

𝐄𝐱𝐩𝐥𝐨𝐫𝐢𝐧𝐠 𝐮𝐬𝐞𝐑𝐞𝐟 — 𝐑𝐞𝐚𝐜𝐭’𝐬 𝐒𝐞𝐜𝐫𝐞𝐭 𝐌𝐞𝐦𝐨𝐫𝐲 𝐇𝐨𝐨𝐤! When you want to directly access a DOM element or store a value that doesn’t trigger re-renders, the useRef hook is your best friend! 💡 Unlike useState, updating a ref won’t cause the component to re-render — making it perfect for tracking values, timers, or DOM nodes. 𝐇𝐨𝐰 𝐢𝐭 𝐰𝐨𝐫𝐤𝐬: 👉 useRef(null) creates a reference object. 👉 ref={inputRef} connects it to the input element. 👉 inputRef.current gives you direct access to the DOM element. 👉 Perfect for focusing, scrolling, or tracking mutable values! ✨ 𝐂𝐨𝐦𝐦𝐨𝐧 𝐮𝐬𝐞𝐬 𝐨𝐟 𝐮𝐬𝐞𝐑𝐞𝐟: ✅ Accessing or modifying DOM elements directly ✅ Storing previous state values ✅ Managing intervals or timers ✅ Avoiding unnecessary re-renders ❓ Question for you: Have you ever used useRef in your projects? What was your use case — DOM access, timers, or something creative? #ReactJS #ReactHooks #useRef #WebDevelopment #FrontendDevelopment #JavaScript #Coding #Programming #DeveloperLife #LearningEveryday