Jouwel Elias’ Post

🚀 𝐒𝐭𝐨𝐩 𝐑𝐞-𝐫𝐞𝐧𝐝𝐞𝐫𝐢𝐧𝐠 𝐄𝐯𝐞𝐫𝐲𝐭𝐡𝐢𝐧𝐠: 𝐀 𝐑𝐞𝐚𝐥-𝐖𝐨𝐫𝐥𝐝 𝐂𝐚𝐬𝐞 𝐟𝐨𝐫 𝐮𝐬𝐞𝐂𝐚𝐥𝐥𝐛𝐚𝐜𝐤 & 𝐑𝐞𝐚𝐜𝐭.𝐦𝐞𝐦𝐨 Most devs skip 𝐮𝐬𝐞𝐂𝐚𝐥𝐥𝐛𝐚𝐜𝐤 and 𝐑𝐞𝐚𝐜𝐭.𝐦𝐞𝐦𝐨 - not because they don’t care about performance…but because they don’t realize where they actually make an impact. But here's a production scenario that changed my mind: 𝐓𝐡𝐞 𝐏𝐫𝐨𝐛𝐥𝐞𝐦: Imagine a dashboard with a data table showing 𝟏,𝟎𝟎𝟎+ 𝐫𝐨𝐰𝐬. Each row has an "Edit" button. Without optimization, every keystroke in a search filter re-renders ALL 𝟏,𝟎𝟎𝟎+ 𝐫𝐨𝐰𝐬 - even though only the filtered results changed. Every time searchTerm updates, handleEdit is recreated, forcing ALL 𝟏,𝟎𝟎𝟎+ 𝐫𝐨𝐰𝐬 UserRow components to re-render. ✅ 𝐓𝐇𝐄 𝐅𝐈𝐗: See the Snapshot 𝐓𝐡𝐞 𝐈𝐦𝐩𝐚𝐜𝐭: 𝐁𝐞𝐟𝐨𝐫𝐞: 1,000+ re-renders per keystroke = ~250ms lag 𝐀𝐟𝐭𝐞𝐫: Only visible rows re-render = <16ms (60fps) 𝐔𝐬𝐞𝐫 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞: Smooth, responsive filtering 𝐖𝐡𝐞𝐧 𝐭𝐨 𝐔𝐬𝐞 𝐢𝐧 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧: 𝐋𝐚𝐫𝐠𝐞 𝐋𝐢𝐬𝐭𝐬/𝐓𝐚𝐛𝐥𝐞𝐬 - Any component rendering 50+ items 𝐂𝐨𝐦𝐩𝐥𝐞𝐱 𝐂𝐡𝐢𝐥𝐝𝐫𝐞𝐧 - Components with expensive calculations or deep trees 𝐅𝐫𝐞𝐪𝐮𝐞𝐧𝐭 𝐏𝐚𝐫𝐞𝐧𝐭 𝐔𝐩𝐝𝐚𝐭𝐞𝐬 - Forms, filters, real-time data 𝐄𝐯𝐞𝐧𝐭 𝐇𝐚𝐧𝐝𝐥𝐞𝐫𝐬 𝐚𝐬 𝐏𝐫𝐨𝐩𝐬 - Especially with memo'd children So next time your React app feels sluggish, don’t just look at network calls. 👉 Check your re-renders. 👉 Add memoization where it matters. That’s the difference between “𝐢𝐭 𝐰𝐨𝐫𝐤𝐬” and “𝐢𝐭 𝐬𝐜𝐚𝐥𝐞𝐬.” 💪 #React #WebPerformance #JavaScript #Frontend #SoftwareEngineering

𝐔𝐬𝐢𝐧𝐠 𝐁𝐫𝐨𝐚𝐝𝐜𝐚𝐬𝐭 𝐂𝐡𝐚𝐧𝐧𝐞𝐥 𝐀𝐏𝐈 𝐢𝐧 𝐑𝐞𝐚𝐜𝐭 𝐉𝐒 𝐟𝐨𝐫 𝐂𝐫𝐨𝐬𝐬-𝐭𝐚𝐛 𝐜𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧 If you need to sync state or user actions across multiple browser tabs, 𝐁𝐫𝐨𝐚𝐝𝐜𝐚𝐬𝐭 𝐂𝐡𝐚𝐧𝐧𝐞𝐥 API does it efficiently and without complex workarounds. 𝐄𝐱𝐚𝐦𝐩𝐥𝐞 𝐮𝐬𝐞 𝐜𝐚𝐬𝐞: A user logs out from one tab and you want all other open tabs to log out automatically. -------------------------------------------- // authChannel.js const channel = new BroadcastChannel('auth'); // Logout button click function export const sendLogout = () => channel.postMessage({ type: 'LOGOUT' }); export const listenLogout = (callback) => {  channel.onmessage = (event) => {   if (event.data.type === 'LOGOUT') callback();  }; }; useEffect(() => {  listenLogout(() => handleLogout()); }, []); -------------------------------------------- This automatically updates all open tabs in real time. No backend calls, no localStorage polling. The Broadcast Channel API is perfect for:  - Auth sync across tabs  - Multi-tab notifications  - Real-time preference or theme updates It’s a lightweight addition that makes your React apps feel more connected and responsive. Thanks to creators like Hitesh Choudhary, Akshay Saini 🚀, Piyush Agarwal, Web Dev Simplified and Codevolution for consistently sharing practical insights that help developers build smarter apps. #ReactJS #JavaScript #BroadcastChannel #WebDevelopment

🚀 React 19’s use() Hook — A Simpler Way to Handle Async Logic React 19 continues to push for cleaner, more declarative patterns — and the new use() hook is one of its biggest game-changers. For years, we’ve relied on a mix of useEffect + useState to fetch and manage data. It worked… but it often meant repetitive code, extra re-renders, and messy async handling. The new use() hook changes that. It lets React directly “await” data inside components. ⚙️ When data is loading, React automatically suspends rendering — no manual state or loading flags needed. 💡 Result: ✅ Cleaner components with less boilerplate ✅ More predictable rendering flow ✅ Built-in Suspense support ✅ Better performance with React Server Components This isn’t just syntactic sugar — it’s a big step toward truly declarative, async-friendly UI design. Have you tried use() yet? What are your thoughts on React’s direction with async logic? #React19 #ReactJS #Frontend #FullStack #WebDevelopment #JavaScript #CleanCode #SoftwareEngineering #ModernReact

💭 Ever wished window.confirm() could show your own custom modal? I did — and got tired of juggling modal states, callbacks, and context just to ask: “Are you sure?” So I built a small helper for myself… and figured others might find it useful too 👇 👉 @sghere/react-confirm A minimal, promise-based confirm utility for React — lightweight, zero-config, and works beautifully with your own UI. ✨ Features 🧩 Zero configuration — works out of the box ⚛️ Fully compatible with React 16+ and 18 💬 Promise-based API: await confirm({...}) 🧠 Type-safe with ConfirmOptions support 🎨 Tailwind-ready styling — easily themeable 🪶 Lightweight — under 5 KB gzipped 📦 Installation npm install @sghere/react-confirm # or yarn add @sghere/react-confirm # or bun add @sghere/react-confirm ⚠️ Requires react and react-dom as peer dependencies 🚀 Quick Start import { confirm } from "@sghere/react-confirm"; import "@sghere/react-confirm/dist/react-confirm.css"; <button onClick={() => { confirm({ heading: "Are you sure?", body: "This will be deleted", onConfirm: () => { alert("Deleted ✅"); }, }); }} > Delete Item </button> It’s a small utility — nothing fancy — but it’s made my workflow cleaner and faster. If you give it a try, I’d love your thoughts or suggestions to make it better 🙌 #React #OpenSource #Frontend #JavaScript #ReactJS #WebDev #DeveloperTools #DevCommunity

💥 What’s new in React 19 you should know If you're using React (or planning to), version 19 brings several powerful updates that make your code cleaner, faster, and more future-proof. 🔧 Key Highlights Actions & async transitions With React 19 you can now define “actions” with async logic and tie them into transitions automatically (rather than manually managing loading/error states). react.dev+2 FreeCodeCamp+2 const [error, submitAction, isPending] = useActionState(async formData => { const result = await updateSomething(formData); if (result.error) return result.error; return null; }, null); return <form action={submitAction}>…</form>; Passing ref as a prop & less boilerplate Functional components can now accept ref directly as a prop — less need for forwardRef. GeeksforGeeks+1 Improved support for metadata, stylesheets, async scripts React 19 adds built-in support for document metadata tags (title/meta/link), better stylesheet handling with proper precedence, and better placement of async scripts within the component tree. react.dev+1 Better error & hydration reporting When things go wrong (especially with server components / SSR), React 19 gives clearer error messages and avoids duplicate logs, improving developer experience. react.dev+1 Directives — use client & use server To help you delineate client vs server code in mixed environments (like with server-components), these directives provide clarity. Vercel ✅ Why this matters Write fewer boilerplate patterns: less overhead for common logic (forms, refs, metadata) Better performance and faster startup in many cases More clarity when mixing server + client components, or SSR + hydration Real improvements for maintainability, especially in large codebases 🧑💻 Next steps for you If you’re on React 18, review the official [Upgrade Guide]react.dev and plan your migration Try out a new feature: e.g., convert one of your forms to use useActionState Share this post with your team or network to spread the update #ReactJS #WebDevelopment #Frontend #React19 #JavaScript #DeveloperTips

⚛️ React 19 — What’s Actually New (and Useful) After playing around with React 19, it’s clear this release focuses less on adding shiny APIs and more on simplifying the full‑stack developer experience. Here’s what stands out 👇 1️⃣ Server Components – Real SSR without hacks You can now render async components directly on the server — no client bundles needed. Faster loads, better SEO. // Users.server.jsx export default async function Users() { const res = await fetch("https://lnkd.in/g2xx7ggw"); const users = await res.json(); return users.map(u => <p key={u.id}>{u.name}</p>); } 2️⃣ Actions API – Form handling made elegant Server and client code finally blend naturally. "use server"; export async function saveUser(data) { await db.user.create(data); return { success: true }; } "use client"; import { saveUser } from "./actions"; <form action={saveUser}><button>Save</button></form> 3️⃣ useOptimistic – Instant UI feedback for async ops Your UI stays snappy while waiting for responses. const [todos, addTodo] = useOptimistic([], (t, n) => [...t, n]); function handleAdd(name) { addTodo({ name, sending: true }); } 4️⃣ React Compiler – Goodbye, memo hell React 19’s experimental compiler optimizes components automatically, so you don’t need `useMemo`, `useCallback`, or `React.memo` spam anymore. 5️⃣ Ref as Prop – No more `forwardRef()` circus You can now pass refs directly between components, keeping your code modular and readable. Overall: React 19 feels like a maturity release — less mental overhead, smoother SSR, and smarter performance out of the box. If you’ve migrated already — what’s your favorite upgrade so far? #React19 #WebDevelopment #JavaScript #Frontend #MERNStack

🚀 𝗟𝗲𝘃𝗲𝗹 𝗨𝗽 𝗬𝗼𝘂𝗿 𝗥𝗲𝗮𝗰𝘁 𝗖𝗼𝗺𝗽𝗼𝗻𝗲𝗻𝘁𝘀 𝘄𝗶𝘁𝗵 𝗛𝗶𝗴𝗵𝗲𝗿-𝗢𝗿𝗱𝗲𝗿 𝗖𝗼𝗺𝗽𝗼𝗻𝗲𝗻𝘁𝘀 (𝗛𝗢𝗖𝘀)! 🚀 Ever catch yourself writing the same logic across multiple React components?  That’s where 𝗛𝗶𝗴𝗵𝗲𝗿-𝗢𝗿𝗱𝗲𝗿 𝗖𝗼𝗺𝗽𝗼𝗻𝗲𝗻𝘁𝘀 (𝗛𝗢𝗖𝘀) come in. HOCs are one of React’s most powerful patterns for 𝗿𝗲𝘂𝘀𝗶𝗻𝗴 𝗰𝗼𝗺𝗽𝗼𝗻𝗲𝗻𝘁 𝗹𝗼𝗴𝗶𝗰 and keeping your codebase clean and maintainable. 🔍 𝗪𝗵𝗮𝘁 𝗶𝘀 𝗮 𝗛𝗢𝗖? A 𝗛𝗶𝗴𝗵𝗲𝗿-𝗢𝗿𝗱𝗲𝗿 𝗖𝗼𝗺𝗽𝗼𝗻𝗲𝗻𝘁 is simply a function that takes a component and returns a new one with extra props or behavior.  It’s like a 𝗱𝗲𝗰𝗼𝗿𝗮𝘁𝗼𝗿 for your components, wrapping them to add new capabilities without changing their core. 💡 𝗪𝗵𝘆 𝗨𝘀𝗲 𝗛𝗢𝗖𝘀? ✅ 𝗖𝗼𝗱𝗲 𝗥𝗲𝘂𝘀𝗮𝗯𝗶𝗹𝗶𝘁𝘆 Extract shared logic like authentication, data fetching, or logging so you don’t repeat code everywhere. ✅ 𝗦𝗲𝗽𝗮𝗿𝗮𝘁𝗶𝗼𝗻 𝗼𝗳 𝗖𝗼𝗻𝗰𝗲𝗿𝗻𝘀 Let your components focus on rendering UI while HOCs handle business logic behind the scenes. ✅ 𝗣𝗿𝗼𝗽𝘀 𝗠𝗮𝗻𝗶𝗽𝘂𝗹𝗮𝘁𝗶𝗼𝗻 Easily inject or modify props to make your components more flexible and dynamic. Even though 𝗵𝗼𝗼𝗸𝘀 like 𝘶𝘴𝘦𝘊𝘰𝘯𝘵𝘦𝘹𝘵 and 𝗰𝘂𝘀𝘁𝗼𝗺 𝗵𝗼𝗼𝗸𝘀 are the go-to solution in modern React, HOCs still shine in large-scale applications and class component architectures.  They’re especially useful when you want to extend functionality across multiple components without rewriting logic. Have you used HOCs in your projects?  Or do you prefer other patterns like Render Props or Custom Hooks? 💬 Comment 𝗛𝗢𝗖 below and share your favorite use case or pattern that helps you write smarter React components! #React #ReactJS #HigherOrderComponents #FrontendDevelopment #SoftwareArchitecture #DesignPatterns #JavaScript #WebDevelopment #DeveloperCommunity #TechTalk

Great explanation! In Angular, we often handle similar logic through services or directives, but it’s really interesting to see how React uses HOCs to achieve the same level of reusability and separation of concerns.

Next.js Folder Structure | The Foundation of a Scalable Project A clean and well-structured folder setup is the secret behind every maintainable and scalable Next.js application. It not only improves readability but also keeps your workflow efficient and organized as your project grows. Here’s an example of a well-organized Next.js project structure 👇 ⚙️ Key Directories :) 📁 /app – The core of your Next.js 13+ application. • Houses route-based folders like /auth, /dashboard, /profile, /contact, etc. • Each folder can have its own page.tsx, layout, and subroutes. 📦 /components – Reusable UI and layout components. 🧭 /layout – For global sections like Header, Footer, and Sidebar. 🎨 /ui – Smaller reusable parts such as buttons, modals, forms, etc. 📂 Feature-specific folders (e.g., /auth, /dashboard) – For isolated components and logic per feature. 🧠 /hooks – Custom React hooks to manage reusable logic (e.g., useAuth, useCart, useFetch). 🧩 /lib – Utility and configuration files (e.g., database connections, helpers, constants). 🔗 /services – API or business logic layers to keep data fetching and logic cleanly separated. 🧱 /store – Centralized state management (using Redux, Zustand, or your preferred library). 📑 /types & /constants – TypeScript interfaces and reusable constants for type safety and consistency. 🎨 /styles – Global or modular CSS (Tailwind, SCSS, or a custom styling system). ✨ Best Practices: 🔹 Group related files by feature rather than by file type. 🔹 Keep components modular and reusable. 🔹 Use clear naming conventions for consistency. 🔹 Maintain separation between UI, logic, and data layers. 🔹 Refactor early to avoid chaos later. #Nextjs #Reactjs #WebDevelopment #FrontendDevelopment #JavaScript #TypeScript #CleanCode #ProjectStructure #WebDev #CodingBestPractices #ScalableApps #SoftwareEngineering #FullStackDevelopment

 React 19’s use() Hook — Simplifying Async Logic in Modern React React 19 continues to push for cleaner, more declarative patterns — and the new use() hook is one of its most impactful additions. For years, we’ve relied on a combination of useEffect and useState to fetch and manage data. It worked, but often came with repetitive code, multiple re-renders, and less predictable data flow. The use() hook changes that. It allows React to directly “await” data inside components. When data is being fetched, React automatically suspends rendering until it’s ready — no manual state handling or loading checks needed. The result is a simpler and more intuitive developer experience: ✅ Cleaner components with minimal boilerplate ✅ More predictable rendering flow ✅ Seamless integration with React Server Components ✅ Better performance through built-in Suspense handling React 19’s use() hook represents more than just syntactic sugar — it’s a foundational step toward truly declarative and asynchronous UI design. #React19 #ReactJS #Frontend #FullStack #WebDevelopment #JavaScript #CleanCode #SoftwareEngineering #ModernReact