Kamil Dzieniszewski’s Post

🔧 This Week in Front End Tools: Vite+ & Rolldown The front end tooling ecosystem is consolidating around performance and developer experience. Here are two major tool announcements reshaping how developers build modern web applications 👇 ⚡ Vite+ announced as the unified JavaScript toolchain VoidZero unveiled Vite+ at ViteConf, a comprehensive drop-in upgrade to Vite that bundles everything developers need into one CLI: -vite lint: Oxlint linting, 100× faster than ESLint -vite fmt: Prettier-compatible code formatting -vite test: Vitest testing framework built-in -vite lib: Library bundling with blazing-fast DTS generation -vite run: Monorepo task running with intelligent caching, zero configuration The entire suite is Rust-powered, works seamlessly with React, Vue, Svelte, and other frameworks, and eliminates the complexity of managing separate tools and their compatibility. 🚀 Framer migrates to Rolldown bundler Framer became one of the first major companies to adopt Rolldown in production, achieving faster build times and improved code optimization. The Rust-powered bundler maintains full Rollup API compatibility while delivering massive performance gains through multi-threaded parallelization and Oxc-based parsing. This production deployment demonstrates Rolldown’s maturity, while Vite integration remains experimental but is rapidly stabilizing. 💬 Which of these tools are you planning to adopt? Share your thoughts below or explore more insights from GreatFrontEnd! https://lnkd.in/gXkXWkfi #Frontend #WebDevelopment #JavaScript #Vite #Rolldown #GreatFrontEnd

You’ve built the frontend. Backend works too. Here are 15 common mistakes full-stack devs make, and how to avoid them. 1. Frontend Pitfalls – Ignoring responsive design – Rendering too many DOM elements at once – Not testing across different browsers Fix: – Use Flexbox/Grid – Virtualize long lists – Test with tools like BrowserStack 2. Backend Blunders – Poorly structured database models – Weak or no authentication – No error handling or logging Fix: – Normalize your schema – Use hashed passwords (bcrypt) – Add logs and return clear error messages 3. API & Integration Issues – Returning sensitive data – No API rate limiting – Hardcoded API keys in code Fix: – Use DTOs or serializers – Add rate limiting with libraries like express-rate-limit – Store secrets in environment variables 4. DevOps & Deployment Mistakes – Hardcoded URLs or credentials – No logging in production – Unoptimized JavaScript and CSS bundles Fix: – Use .env for configs – Implement logging tools like Sentry – Optimize build with tools like Webpack or Vite 5. Team & Workflow Mistakes – No documentation – Skipping user testing – Ignoring code reviews Fix: – Document APIs with Swagger – Collect feedback with MVPs – Collaborate using Git best practices Being a full-stack developer means balancing multiple layers of a product. Mistakes happen, but awareness is key. Start small, test often, secure everything, and prioritize communication. #TechSkills #codingtips #fullstackdeveloper #backenddevelopers #frontenddeveloper

Choosing the right state management tool in React can be a game-changer for your application's architecture and performance. Let's break down the big three: `useState`, Redux, and the Context API. 🔹 **`useState` Hook** The simplest and most direct way to manage state. - **Best for:** Local component state, like UI toggles, form inputs, or simple counters. - **When to use:** When the state is not needed by other components. It's built-in, lightweight, and your first choice for component-level state management. 🔹 **Context API** Designed to solve the "prop drilling" problem, where you pass props through multiple layers of components. - **Best for:** Sharing global data that doesn't change frequently. - **When to use:** For application-wide data like theme information, user authentication status, or language settings. It keeps your component tree clean and readable. 🔹 **Redux** A powerful and predictable state container for large-scale applications. - **Best for:** Complex, frequently updated global state that is shared across many components. - **When to use:** When you need a single source of truth, predictable state mutations, and powerful debugging tools (like Redux DevTools). It's ideal for applications where multiple components need to interact with and modify the same state. --- **Quick Guide:** 👉 **`useState`:** For simple, isolated component state. 👉 **Context API:** To avoid prop drilling with low-frequency updates. 👉 **Redux:** For complex, large-scale global state. What's your go-to for state management in your React projects? Share your experience below! 👇 #ReactJS #JavaScript #StateManagement #WebDevelopment #FrontendDevelopment #Redux #ContextAPI #ReactHooks #Programming #Coding #Developer #SoftwareEngineering #Tech #DeveloperCommunity

💥 The Day a 500-Line React Component Nearly Broke Our Sprint A few months ago, our team was struggling. Velocity was dropping. Reviews took ages. Tiny UI tweaks risked breaking entire features. The culprit? A 500-line React component trying to do everything. It fetched data Validated forms Handled state Managed API calls Controlled modals and loaders It was a monster. So, we decided to break it apart. One week later, that single component had become 7 smaller ones — each with a single responsibility. And the result? ➡️ Team velocity jumped 35% the very next sprint. ➡️ Fewer bugs. ➡️ Cleaner reviews. ➡️ Happier developers. That’s when the Single Responsibility Principle (SRP) stopped being theory and became a superpower. 🧩 Here’s what we changed: 1. Identify mixed responsibilities If your component description needs “and” multiple times — it’s doing too much. 2. Extract pure UI components Keep them dumb. Just render based on props. No effects. No state. 3. Create container components These handle logic, data fetching, and state — then pass data to UI components. 4. Move logic into custom hooks Reusable API calls, validation, and animations live here. 5. Use composition over configuration Instead of 10 conditionals, compose smaller, focused components. The outcome? ✅ Easier to test ✅ Faster to debug ✅ Simpler to maintain ✅ Way more reusable This one principle has saved hundreds of dev hours — and turned “spaghetti” components into elegant, modular systems. 🔥 Here’s the question: What’s your most effective principle for keeping React codebases clean and scalable? #reactjs #frontenddev #cleancode #webdevelopment #softwaredevelopment #codequality #javascripttips #programming #componentdesign #reacthooks

🪝 Custom Hooks, Power, but with Discipline At some point, every React dev writes a custom hook. It starts with a simple useFetch or useForm, and before you know it, you’re managing your own mini framework. 😅 Over time, I’ve learned that creating custom hooks is less about code reuse and more about clarity. Here’s what I’ve found works best 👇 💡 When Custom Hooks Make Sense ✅ You want to extract repeated logic used across components. ✅ You’re handling complex state or side effects that clutter UI components. ✅ You need a clear abstraction layer between logic and presentation. ⚠️ When They Don’t 🚫 You’re creating a hook to “make it look cleaner.” 🚫 The hook ends up being used only once, and makes debugging harder. 🚫 You’re wrapping libraries (like React Query or Zustand) for no real reason. A good rule of thumb: “If your hook makes code simpler for the next person, keep it. If it hides clarity, rethink it.” What’s the most useful custom hook you’ve written recently? 👇 #ReactJS #TypeScript #FrontendDevelopment #CleanCode #SoftwareEngineering #ReactHooks #WebDev #VipinYadav

My Top 10 VS Code Extensions for Boosting Productivity 💻 As a Frontend Developer, I spend most of my time inside VS Code and having the right extensions makes a huge difference in speed, code quality, and overall workflow. Here are my Top 10 Productivity Extensions that I personally use and highly recommend → Live Server – Instantly preview your projects in the browser. → ESLint – Keeps your code clean and consistent. → GitLens – Supercharges Git right inside VS Code. → Better Comments – Write more meaningful, color-coded comments. → Prettier – Automatically format your code for perfect readability. → GitHub Copilot – Your AI pair programmer → Auto Rename Tag – Rename paired HTML tags automatically. → Path Intellisense – Autocomplete file paths quickly and accurately. → Qodo Gen – Generate boilerplate code faster than ever. → Night Owl Theme – A beautiful dark theme for night coding These extensions have significantly improved my development workflow — from writing cleaner code to saving hours of manual work. If you found this helpful, save this post and try adding a few of these to your setup! -- Tahfeez Mizan #FrontendDevelopment #VSCode #Productivity #SoftwareDevelopment #WebDevelopment #CodingTools #TypeScript #DeveloperLife #JavaScript #SoftwareEngineer #ReactJS #NextJS #Productivity #DevTools #CodeEditor #DeveloperProductivity #AutomationTools #CodingSetup #ProgrammingWorkflow #TechStack #DeveloperExperience

Every 5 years, React forces us to relearn everything. 2013: Class components are the future 2019: Actually, functions are the future 2025: Half your team still doesn't get why Here's the thing about paradigm shifts in tech: They don't happen because the old way was wrong. They happen because we finally understood the problem better. React's lifecycle methods weren't broken. They just modeled the wrong thing. What we thought we were modeling: "A component's journey through mount → update → unmount" What we were actually building: "Synchronized state across time" That mismatch created years of duplicate logic, memory leaks, and infinite update loops. The Old Paradigm (Class Components): componentDidMount() → Do thing componentDidUpdate() → Check if props changed, do thing again componentWillUnmount() → Undo thing The New Paradigm (React Hooks): useEffect(() => { do thing; return undo thing }, [when thing depends on this]) Same behavior. Completely different thinking. Why this matters in 2025: → Companies are spending $500K+ migrating class components to functional components → Frontend developers who understand both paradigms are 2x more valuable → Next.js and React Server Components don't work with class lifecycles The ecosystem is choosing for you. What this means for your career: If you learned React before 2019 → You have context others don't. Use it. If you learned React after 2019 → Learn why hooks exist, not just how to use them. The developers who thrive during paradigm shifts aren't the ones who pick a side. They're the ones who understand why the shift happened. So here's my question: When you're debugging a useEffect hook at 2 AM, do you understand WHY it works the way it does? Or are you just copying patterns from Stack Overflow? What's harder for you: learning the new syntax, or unlearning the old mental model? #ReactJS #ReactHooks #WebDevelopment #JavaScript #FrontendDevelopment #SoftwareEngineering #Programming #ReactDeveloper #WebDev #CodingLife #DeveloperCommunity #TechCareer

Why Backend is Easier Than Frontend 😂 Let me drop a little truth bomb: Backend is easier than frontend. I know, I know... sounds controversial, but hear me out. Backend is all about logic. You build APIs, handle databases, and make sure the business logic is sound. And when it works, it just works no surprises. You don't have to worry about how it looks on Chrome, Firefox, Safari, or whatever else people are using to browse the internet like it's the Wild West. On the flip side, frontend is basically like trying to make the perfect sandwich... except the bread keeps changing shape, the lettuce has a different color on every bite, and sometimes the whole thing just falls apart because someone sneezed on their phone screen. CSS? Don't even get me started. It's like that one friend who says "I'll be ready in 5 minutes" and shows up 30 minutes later looking completely different than expected. And don't even mention the dark mode vs light mode battle. Can we just get one consistent theme for once?! Then there's the testing. In the backend world, unit tests are nice and tidy, like a well-organized desk. In frontend, testing feels like you're cleaning your room by throwing everything into a closet and hoping the door doesn't break. Now, don't get me wrong, frontend devs are absolute wizards, and I have the utmost respect. But when it comes to keeping your sanity intact, backend just feels like a calmer ride. Anyone else in the backend camp? Or am I just being dramatic? 😂 I post this as a joke so please dont be serious I know the complexity of backend 😅 #BackendDev #FrontendVsBackend #DevLife #TechHumor #WebDevelopment #JavaScript #CSSStruggles #FullStackDeveloper #CleanCode #CodingJourney #UnitTests #WebDev

Why Backend is Easier Than Frontend 😂 Let me drop a little truth bomb: Backend is easier than frontend. I know, I know... sounds controversial, but hear me out. Backend is all about logic. You build APIs, handle databases, and make sure the business logic is sound. And when it works, it just works no surprises. You don't have to worry about how it looks on Chrome, Firefox, Safari, or whatever else people are using to browse the internet like it's the Wild West. On the flip side, frontend is basically like trying to make the perfect sandwich... except the bread keeps changing shape, the lettuce has a different color on every bite, and sometimes the whole thing just falls apart because someone sneezed on their phone screen. CSS? Don't even get me started. It's like that one friend who says "I'll be ready in 5 minutes" and shows up 30 minutes later looking completely different than expected. And don't even mention the dark mode vs light mode battle. Can we just get one consistent theme for once?! Then there's the testing. In the backend world, unit tests are nice and tidy, like a well-organized desk. In frontend, testing feels like you're cleaning your room by throwing everything into a closet and hoping the door doesn't break. Now, don't get me wrong, frontend devs are absolute wizards, and I have the utmost respect. But when it comes to keeping your sanity intact, backend just feels like a calmer ride. Anyone else in the backend camp? Or am I just being dramatic? 😂 I post this as a joke so please dont be serious I know the complexity of backend 😅 #BackendDev #FrontendVsBackend #DevLife #TechHumor #WebDevelopment #JavaScript #CSSStruggles #FullStackDeveloper #CleanCode #CodingJourney #UnitTests #WebDev