Luca Mezzalira's Microfrontends Best Practices

A well-organized frontend folder structure makes your project easier to understand and manage. By separating things like components, pages, APIs, and utilities, you create a clear system where every file has its place. This helps you and your team quickly find what you need without confusion. It also improves development speed and code quality. Reusable components, custom hooks and centralized services reduce repetition and make your code cleaner. When everything is structured properly debugging becomes faster and adding new features feels more efficient. In the long run a good folder structure helps your project grow smoothly. It supports better teamwork, easier onboarding for new developers, and keeps your codebase scalable and maintainable as the application evolves. #FrontendDevelopment #WebDevelopment #ReactJS #JavaScript #CleanCode #SoftwareArchitecture #CodingBestPractices #DeveloperLife #ScalableApps

💻 How Frontend and Backend Should Actually Communicate In many projects, frontend and backend integration becomes messy because APIs are not clearly structured. A few simple practices make this much smoother: 📡 Use clear and predictable API endpoints 📦 Send consistent response formats ⚠ Handle errors properly from the backend 🔑 Use proper status codes for responses When communication between frontend and backend is clean, development becomes much faster and easier. Good applications are not just about writing features — they’re about making systems work together smoothly. 👇 Check the carousel for a simple breakdown. #WebDevelopment #FrontendDevelopment #BackendDevelopment #APIDesign #JavaScript #SoftwareEngineering

💡 JavaScript Tip: Stop writing defensive code the hard way. Before optional chaining (?.), we used to write: const city = user && user.address && user.address.city; Now, it's as clean as: const city = user?.address?.city; If any part of the chain is null or undefined, it simply returns undefined — no errors, no verbose conditions. This is especially powerful when working with API responses where nested data isn't always guaranteed. Small syntax. Big impact on readability and reliability. ♻️ Repost if this helped someone on your network. #JavaScript #WebDevelopment #CleanCode #Frontend #CodingTips

Boost Your Productivity with These 3 VS Code Extensions As a developer, having the right tools can make a huge difference. Here are 3 VS Code extensions I use daily to stay efficient and write clean code: ⚡ Live Server Instantly launches your project on localhost with auto-reload — perfect for quick frontend development with Vanilla JS. 🔍 GitLens Supercharges Git inside VS Code. Track changes, view commit history, and understand who modified what — all without leaving your editor. 🎨 Prettier Automatically formats your code on save, keeping everything clean, consistent, and easy to read. 💡 Simple setup, powerful workflow: Code → Save → Auto format → Auto reload → Track changes Sometimes, you don’t need heavy frameworks — just the right tools. #VSCode #WebDevelopment #JavaScript #DeveloperTools #Productivity #CodingLife

Hello everyone, today while working on API integration for a project, I realized something very important. It’s only when you work on real-world projects that your thinking is truly tested. Getting data from the backend is one thing, but how you integrate and present that data to the user depends entirely on your own logic and approach. You have to evolve the solution while keeping the user experience in mind. These are the moments where real learning happens. Building these logics not only stays with you for the long term but also makes it much easier to tackle complex problems in the future. That’s the beauty of the process! Keep learning, keep building. #webdevelopment #javascript #backend #frontend #learningbydoing #apiintegration #fullstack #codingjourney #logicbuilding #softwareengineering

#One_real_production_lesson_frontend_dev_taught_me: We had a bug in production where an API was getting called twice. At first, it looked like a backend issue. But the backend logs were clean. So I started digging into the frontend 👇 The culprit? 👉 React 18 Strict Mode. In development, React intentionally runs components twice to detect side effects. But our code wasn’t written with that in mind. Here’s what we had: ❌ API call inside "useEffect" without proper safeguards ❌ No cleanup / idempotent logic ❌ Assumption: "useEffect runs only once" Result: Duplicate API calls → inconsistent data → confused users. --- ✅ Fix: - Made API calls idempotent - Added proper checks before firing requests - Avoided unnecessary side effects inside "useEffect" --- 💡 Lesson: Writing code that works is easy. Writing code that works in real-world scenarios is the real skill. React doesn’t cause bugs. Our assumptions do. --- Since then, I always ask: 👉 “What happens if this runs twice?” 👉 “Is this safe in concurrent rendering?” --- Still learning something new every day 🚀 #FrontendDevelopment #ReactJS #JavaScript #CleanCode #WebDevelopment #Debugging

🧠 Dev Tip #2 – Lightweight Global State Instead of using heavy state libraries, I often use Zustand for global state. Why I like it: ✔ Minimal boilerplate ✔ Simple API ✔ Works great with React and Next.js Example use cases in my projects: • Auth state • Call state • Shared UI state across dashboards Simple and powerful. Sometimes the best tool is the simplest one. #reactjs #zustand #javascript #frontenddeveloper #webdevelopment

I hate React memoization. Not because memoization is bad. Because developers keep using it to solve problems they have not even identified. useMemo on cheap calculations. useCallback on everything that moves. memo wrapped around components that still rerender anyway. No profiling. No bottleneck. No real reason. Just extra complexity in the name of “performance.” Most of the time, the real issue is not that React needs more memoization. It is that the component tree, state boundaries, or data flow were designed badly in the first place. At this point, memoization is not performance work. It is perfume on architecture problems. #react #frontend #javascript #performance #webdevelopment

It is possible to install the package https://lnkd.in/dHtbjDK3 specifically to avoid having to manually add dozens, if not hundreds, of memoizations, which would otherwise burden the developer and reduce code readability. - Hook soup: components with many custom hooks - it is able to manage and optimize even in these cases. In general, it is important that the code follows the Rules of React in order to work properly. It is available and optimized for version 19, but it can also be used with versions 17 and 18, provided that an additional polyfill plugin is installed: react-compiler-runtime. Although supported, the React team states that the compiler works best with React 19, since it includes native optimizations that the external runtime has to emulate. Additionally, it is possible to install react-scan to visually identify automatically memoized components, marked with a ✨ icon.