React2Shell Security Issue: Full-Stack React Devs Take Note

Any junior devs starting their first role should keep these points on their mind. Articles and videos on the internet can be misleading.

⚛️ Every ReactJS Developer Should Know These Core Principles! React isn’t just about hooks and components—it’s about thinking correctly. From component design to state management, from Virtual DOM to performance hacks, these principles decide whether your app scales or struggles. 📌 Inside the infographic: ✅ Core React principles ✅ Powerful developer hacks ❌ Common mistakes to avoid If you’re using React daily, this is a must-save post 🔖 Medium - https://lnkd.in/gGqrgWp7 Google Blogs - https://lnkd.in/gQwQ-yvv Personal Site - https://lnkd.in/g-gxfsMv Medium - https://lnkd.in/gGqrgWp7 #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #SoftwareEngineering #CleanCode #ProgrammingTips

Node.js Event Loop – 🚀 Node.js works on a single-threaded, non-blocking model to handle many users efficiently. 🔹 How it works: • Requests come in and are added to the Event Queue • The Event Loop picks tasks one by one • Non-blocking tasks (I/O like network, file read) are handled asynchronously • Blocking/heavy tasks are offloaded to the Thread Pool • Results return back to the Event Loop and then to the user 🔹 Why it’s powerful: • Handles thousands of requests with high performance • No waiting or freezing during I/O operations • Perfect for real-time apps, APIs, and scalable systems 📌 This is why Node.js is fast, efficient, and widely used in backend development. #NodeJS #EventLoop #JavaScript #BackendDevelopment #WebDevelopment #MERN #TechExplained

🚀 A Crucial React Router Gotcha Most Developers Don't Know 🚨 If you're building a React app with React Router, there's a common issue many developers don't realize, especially after deploying to platforms like Netlify, Vercel, etc. You test your app locally, and everything works fine. Clicking through nav menus? Everything loads perfectly. So you think: "Looks good to go!" But here's the catch ⚠️ Try manually refreshing a route like /about, /contact, or any deep link other than /… on the production site. 💥 You might get a 404 - Page Not Found error! Why? Because when you hit refresh, the request goes directly to the server, and by default, most static hosting services don’t know how to handle client-side routes. How to Fix It👇 𝗙𝗼𝗿 𝗡𝗲𝘁𝗹𝗶𝗳𝘆: Create a _redirects file in your public folder with this line: /* /index.html 200 𝗙𝗼𝗿 𝗩𝗲𝗿𝗰𝗲𝗹: Add a file with the name vercel.json inside your project root with the following code: { "rewrites": [ { "source": "/(.*)", "destination": "/" } ] } This tells the server to always serve index.html for any route that does not exist or the server is not able to render, letting React Router, which is code in the index.html do its job even after a refresh. So always do page refresh testing for routes other than / route after deployment. Local testing can be misleading because your dev server already handles routing. 𝗙𝗼𝗿 𝗺𝗼𝗿𝗲 𝘀𝘂𝗰𝗵 𝘂𝘀𝗲𝗳𝘂𝗹 𝗰𝗼𝗻𝘁𝗲𝗻𝘁, 𝗱𝗼𝗻'𝘁 𝗳𝗼𝗿𝗴𝗲𝘁 𝘁𝗼 𝗳𝗼𝗹𝗹𝗼𝘄 𝗺𝗲. 𝗣𝗦: Recording of yesterday's 3 hours webinar "𝗟𝗲𝗮𝗿𝗻 𝗧𝗼 𝗕𝘂𝗶𝗹𝗱 𝗔 𝗙𝘂𝗹𝗹𝘀𝘁𝗮𝗰𝗸 𝗛𝗼𝘁𝗲𝗹 𝗕𝗼𝗼𝗸𝗶𝗻𝗴 𝗔𝗽𝗽 𝗨𝘀𝗶𝗻𝗴 𝗟𝗼𝘃𝗮𝗯𝗹𝗲 𝗔𝗜 + 𝗖𝗹𝗮𝘂𝗱𝗲 𝗖𝗼𝗱𝗲" is uploaded and is available to watch. #javascript #reactjs #webdevelopment

Ever had this moment as a frontend engineer? 😅 You’re working across multiple apps and realize: App 1 already has the component you need App 2 now has a “slightly different” version of the same thing …and suddenly duplication becomes the default. I wrote a short Medium walkthrough on how Module Federation helps here: ✅ one app exposes a component ✅ another app loads it at runtime ✅ teams can ship independently without copy-paste or constantly republishing shared packages If you’re using Vite + React + TypeScript, I included a simple setup + example repo. https://lnkd.in/dkBEvA3V #frontend #reactjs #vite #typescript #modulefederation #webdevelopment #microfrontends

Imagine if you could see and truly understand what happens under the hood of React Server Components (RSC). You wouldn't just become a better React developer—you'd build better React apps. Well, imagine no more. This is now possible. Dan Abramov has created RSC Explorer, and I discovered it today. Honestly, it’s pure gold 💎. As Dan puts it: “...even people who actively build apps with React Server Components often don’t have an intuition for how they work under the hood.” This tool changes that by showing exactly how the magic happens. Dan, thank you so much for this. If you’re building and shipping React apps to production, I strongly recommend checking this out whenever you can. I genuinely believe it will help. P.S: Link in comments. #react #reactjs #javascript #frontend

If you are building a React app in 2026 without TypeScript, you are building legacy code. 🚩 I often get asked: "Should I use JavaScript or TypeScript?" The answer used to be "it depends." Now, the answer is "TypeScript." Here is the reality check: JavaScript is fun. It’s fast. It’s flexible. But it’s also the "Wild West." 🤠 TypeScript is your insurance policy. ✅ It catches 15% of bugs before you even run the app. ✅ It acts as "self-documentation" for your team. ✅ It makes refactoring large codebases actually possible without breaking everything. The Golden Rule: 👉 Learning React? Stick to JavaScript. Focus on the concepts first. 👉 Building a Product? Use TypeScript. Your future self (and your team) will thank you. Stop fighting the compiler. Start letting it help you. . . . . . . . . . . . . . . . #ReactJS #TypeScript #JavaScript #WebDevelopment #SoftwareEngineering #CodingBestPractices #TechTrends2026

Is your React app feeling slow? Here’s your measurement and optimization playbook. From using React 19.2's new Performance Tracks in DevTools to applying memoization, code splitting, and list virtualization, this guide covers it all. Essential read for React devs: https://lnkd.in/dFskPdTJ #ReactJS #WebDev #Frontend #JavaScript

Ever built an API and watched it crash because someone hit it 1000 times in a minute? 😅 Been there. Learned the hard way. That's when I discovered express-rate-limit. It's a simple middleware that says: "Hey, slow down buddy. Only 100 requests per 15 minutes." Just 5 lines of code: const limiter = rateLimit({ windowMs: 15 * 60 * 1000, max: 100 }); app.use(limiter); That's it. Your API is now protected. No more crashes. No more abuse. No more sleepless nights. Small things make big differences in backend development. What's one small package that saved your project? #nodejs #expressjs #webdevelopment #backend #javascript