React Apps Load Instantly Without Server Requests

Server Components are not SSR. I know they sound the same. They're not. SSR renders your component on the server, then ships HTML + the JS needed to hydrate it on the client. The user gets interactivity after the JS downloads and runs. RSC renders your component on the server and ships the output — no component JS ever goes to the client. The user gets interactivity from sibling components that actually need it. Same word in the Next.js docs. Very different runtime behavior. If 80% of your App Router files start with "use client", you have a Pages Router app with extra steps. The bundle sizes should have dropped. If they didn't, this is why. We wrote a full breakdown of where they overlap, where they don't, and why it changes how you bundle. https://lnkd.in/dUitNcb6 #nextjs #reactjs #servercomponents #webperformance #javascript

In React, you can show or hide components based on conditions 3 ways to do it....  1. 𝗶𝗳/𝗲𝗹𝘀𝗲 if (isLoggedIn) return <Dashboard /> else return <Login /> 2. 𝗧𝗲𝗿𝗻𝗮𝗿𝘆 𝗼𝗽𝗲𝗿𝗮𝘁𝗼𝗿 {isLoggedIn ? <Dashboard /> : <Login />} 3. && 𝗼𝗽𝗲𝗿𝗮𝘁𝗼𝗿 {isLoggedIn && <Dashboard />} Use && when you only want to show something and have nothing to show otherwise. Use ternary operator when you have two options. This is how every login/logout, loading spinner, and error message works in a React app #reactjs #webdevelopment #javascript #MERN

React Server Components are changing how we build web apps. - They run on the server, so less JavaScript is sent to the browser. This makes apps faster and lighter. - They are now the default in Next.js. - But you need to understand server and client boundaries, and there are some limitations. - Still, it’s a big step towards better performance. What do you think about it? #React #NextJS #WebDevelopment #JavaScript

Most Next.js developers are still using Pages Router in 2026. Here's why that's a mistake. 🧵 When Next.js released the App Router I ignored it for months. "Too complex. Pages Router works fine." Then I built a production app with App Router... And I never went back. The real difference? Pages Router: ❌ No Server Components ❌ Slower data fetching ❌ Being phased out slowly App Router: ✅ Server Components by default ✅ Fetch data directly in components ✅ Built-in layouts ✅ The future of Next.js If you're starting a new project in 2026 there's only one right answer. App Router. Every time. Are you still on Pages Router? Tell me why 👇 #NextJS #ReactJS #WebDevelopment #FullStackDeveloper #TypeScript #JavaScript #Frontend #100DaysOfCode #BuildInPublic #LahoreTech

Most Next.js developers are still using Pages Router in 2026. Here's why that's a mistake. 🧵 When Next.js released the App Router I ignored it for months. "Too complex. Pages Router works fine." Then I built a production app with App Router... And I never went back. The real difference? Pages Router: ❌ No Server Components ❌ Slower data fetching ❌ Being phased out slowly App Router: ✅ Server Components by default ✅ Fetch data directly in components ✅ Built-in layouts ✅ The future of Next.js If you're starting a new project in 2026 there's only one right answer. App Router. Every time. Are you still on Pages Router? Tell me why 👇 #NextJS #ReactJS #WebDevelopment #FullStackDeveloper #TypeScript #JavaScript #Frontend #100DaysOfCode #BuildInPublic #LahoreTech

Day 19 #100DaysOfCode 💻 Today I learned Next.js basics 🚀 Next.js is a React framework that helps build fast, SEO-friendly web apps with features like file-based routing and server-side rendering. I explored: What is Next.js File-based routing Project structure // pages/index.js export default function Home() { return <h1>Hello Next.js 🚀</h1>; } Next.js feels powerful for building modern web apps efficiently. #NextJS #ReactJS #WebDevelopment #FrontendDeveloper #LearningInPublic #Akbiplob

Day 18 #100DaysOfCode 💻 Today I learned React Routing (React Router). React Router helps create multiple pages in a single-page application (SPA) without reloading the browser. It allows smooth navigation between components like Home, About, and Contact. Key idea: Use BrowserRouter, Routes, and Route to define paths and components. import { BrowserRouter, Routes, Route } from "react-router-dom"; import Home from "./Home"; import About from "./About"; function App() { return ( <BrowserRouter> <Routes> <Route path="/" element={<Home />} /> <Route path="/about" element={<About />} /> </Routes> </BrowserRouter> ); } This makes navigation faster and keeps the app dynamic and user-friendly. Small step forward in my React journey 🚀 #React #ReactRouter #WebDevelopment #JavaScript #FrontendDevelopment #Akbiplob

I just learned something that completely changed how I think about React apps. React Router. Before this, I didn't understand how single page applications actually navigate between pages without reloading the browser. It felt like magic. Now I get it. Here's what React Router taught me: ✅ A React app is ONE page — but can feel like many ✅ Routes control what component shows up at each URL ✅ No full page reload = faster, smoother user experience ✅ Nested routes let you build complex layouts cleanly ✅ useNavigate() and Link replace the traditional anchor tag Something as simple as navigating between a Home page and an About page suddenly made the whole concept of SPAs click for me. This is what I love about learning web development — every new concept makes the previous ones make more sense. One concept at a time. One day at a time. Are you learning React? What concept made things finally click for you? Let me know in the comments! #reactjs #reactrouter #webdevelopment #javascript #frontenddeveloper #100daysofcode #devjourney #programminghamlet

I thought every React component runs in the browser… Next.js proved me wrong. Day 5 of my 30-day Next.js deep dive. Today I explored Client vs Server Components—and this topic really made me pause and rethink how React apps actually work under the hood. This isn’t just a feature. It changes how you design your entire app. Key Learnings - Components in Next.js are Server Components by default - Server Components run on the server → better performance and smaller bundle size - Client Components are needed for interactivity (state, events, hooks) - "use client" explicitly marks a component for the browser - Mixing both correctly is key to building efficient apps At first, I was confused: “Why isn’t my component working with useState?” Then I realized—it was running on the server. That moment made something click: 👉 Not everything needs to be interactive 👉 And not everything should run in the browser This changed how I think about performance and architecture. I’m starting to think beyond just “making things work” and focusing more on how and where code runs. Because in real-world remote teams, performance and architecture decisions actually matter. For developers working with Next.js—how do you decide when to use a Client Component vs a Server Component? #NextJS #ReactJS #WebDevelopment #FullStackDeveloper #JavaScript #Performance #LearningInPublic #RemoteDeveloper

Most React devs are still making users wait for the server. 🙄 I was too. Until I found `useOptimistic` in React 19. **What changed:** → UI updates the moment user clicks → No spinner, no waiting, no freeze → If server fails - React auto rolls back to previous state → Zero extra code for error handling This is exactly how Instagram, X, and LinkedIn build their like buttons. The difference between a "good app" and a "feels native" app is this one pattern. `useOptimistic` ships with React 19. No extra install. If you're still on the old pattern - try this today. Drop a 🔥 if this was new to you! What pattern do you use for instant UI feedback? Let me know 👇 #React19 #ReactJS #useOptimistic #Frontend #WebDevelopment #JavaScript #FullStackDeveloper