Vlad Burdukovsky’s Post

𝟓 𝐑𝐞𝐚𝐜𝐭 𝐇𝐨𝐨𝐤𝐬 𝐄𝐯𝐞𝐫𝐲 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐒𝐡𝐨𝐮𝐥𝐝 𝐔𝐧𝐝𝐞𝐫𝐬𝐭𝐚𝐧𝐝 (𝐰𝐢𝐭𝐡 𝐑𝐞𝐚𝐥 𝐔𝐬𝐞 𝐂𝐚𝐬𝐞𝐬) When I first started working with React, I’ll be honest Hooks completely confused me. I knew they were powerful, but useState, useEffect, useRef… all blurred together. It wasn’t until I spent a quiet weekend building a small task tracker app that everything finally clicked. Every problem I ran into had a Hook that solved it beautifully. Here’s what I learned 1. 𝐮𝐬𝐞𝐒𝐭𝐚𝐭𝐞() / 𝐮𝐬𝐞𝐑𝐞𝐝𝐮𝐜𝐞𝐫()-𝐌𝐚𝐧𝐚𝐠𝐞 𝐒𝐭𝐚𝐭𝐞 𝐄𝐚𝐬𝐢𝐥𝐲 - I used these to handle user input and update UI instantly. - Simple, clean, and no messy class-based state handling. 𝐑𝐞𝐚𝐥 𝐜𝐚𝐬𝐞 : Managing form fields or to-do items dynamically. 2. 𝐮𝐬𝐞𝐂𝐨𝐧𝐭𝐞𝐱𝐭()-𝐒𝐡𝐚𝐫𝐞 𝐃𝐚𝐭𝐚 𝐖𝐢𝐭𝐡𝐨𝐮𝐭 𝐏𝐫𝐨𝐩 𝐃𝐫𝐢𝐥𝐥𝐢𝐧𝐠 - I used to pass props across 3–4 components. - With useContext(), I shared theme and login state directly. 𝐑𝐞𝐚𝐥 𝐜𝐚𝐬𝐞 : App-wide authentication or theme management. 3. 𝐮𝐬𝐞𝐑𝐞𝐟()-𝐀𝐜𝐜𝐞𝐬𝐬 𝐃𝐎𝐌 𝐄𝐥𝐞𝐦𝐞𝐧𝐭𝐬 𝐃𝐢𝐫𝐞𝐜𝐭𝐥𝐲 - useRef() helped me focus input fields and measure element sizes without re-rendering. 𝐑𝐞𝐚𝐥 𝐜𝐚𝐬𝐞 : Managing focus in custom input components. 4. 𝐮𝐬𝐞𝐄𝐟𝐟𝐞𝐜𝐭()-𝐂𝐨𝐧𝐧𝐞𝐜𝐭 𝐰𝐢𝐭𝐡 𝐭𝐡𝐞 𝐎𝐮𝐭𝐬𝐢𝐝𝐞 𝐖𝐨𝐫𝐥𝐝 - Fetching APIs, adding event listeners, or updating the title bar this hook handles all side effects. 𝐑𝐞𝐚𝐥 𝐜𝐚𝐬𝐞 : Fetching data from APIs when a component mounts. 5. 𝐮𝐬𝐞𝐌𝐞𝐦𝐨() / 𝐮𝐬𝐞𝐂𝐚𝐥𝐥𝐛𝐚𝐜𝐤()-𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐞 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 - Once my app grew, I noticed re-renders slowing things down. - These two hooks became my secret performance weapons 𝐑𝐞𝐚𝐥 𝐜𝐚𝐬𝐞 : Caching computed values or memoizing functions in complex UIs. That small weekend project changed how I think about React. Hooks aren’t just features they’re a way to 𝐭𝐡𝐢𝐧𝐤 𝐦𝐨𝐫𝐞 𝐜𝐥𝐞𝐚𝐫𝐥𝐲 about your app’s logic and structure. If you’re learning React, don’t rush it. Build small. Break things. Learn by solving. Each Hook will make sense when it solves your real problem. #ReactJS #JavaScript #FrontendDevelopment #ReactHooks #WebDevelopment #CodingJourney #SoftwareEngineering

React Performance Tips — From My Experience as a Developer After working with React and Next.js for over 3.5 years, one thing I’ve learned is — performance matters as much as functionality. Even a beautiful UI feels frustrating if it’s slow. Here are some practical React performance tips I’ve learned (and actually use) 1. Use React.memo wisely It prevents unnecessary re-renders by memoizing components — but don’t wrap everything! Use it where props rarely change. 2. Use useCallback & useMemo for expensive operations These hooks help cache functions or computed values, reducing unnecessary recalculations. 3. Lazy load components Split your bundle using React.lazy() or dynamic imports in Next.js — load components only when needed. 4. Avoid inline functions & objects Inline functions or objects inside JSX re-create on every render. Move them outside or memoize them. 5. Use virtualization for large lists For rendering big datasets, use libraries like react-window or react-virtualized — they only render visible items. 6. Optimize images & media In Next.js, the next/image component automatically handles lazy loading, resizing, and format optimization. 7. Keep state local where possible Global states (like Redux) re-render large parts of the app. Use component-level or context-based state when suitable. 8. Profile before optimizing Use React DevTools Profiler to identify actual bottlenecks — don’t optimize blindly. Remember: React is already fast — it’s our code that slows it down. Performance is about making smart decisions, not micro-optimizing everything. What’s your go-to React performance trick that made a big difference in your projects? #ReactJS #NextJS #WebPerformance #FrontendDevelopment #MERNStack #JavaScript #WebDevelopment #SoftwareEngineering #FullStackDeveloper

Over the weekend, I took a short break from my React Native lessons to learn more about the new features in #React19 and #Next.js16 and wow, both frameworks are setting the future standard for frontend development. 🔥 Here are a few highlights that stood out to me 👇 🧠 #React19 Highlights 1️⃣ Server Components   - Render parts of your app entirely on the server.   - Reduces client-side bundle sizes and speeds up page loads. 2️⃣ Actions   - A simpler way to handle forms and server-side mutations.   - Comes with new hooks like:    `useActionState`, `useFormStatus`, and `useOptimistic`. 3️⃣ View Transitions API   - Smoothly animate between page or element updates for better UX. 4️⃣ useEffectEvent   - Extract non-reactive logic from Effects for cleaner, reusable hooks. 5️⃣ <Activity /> Component   - Lets you render “background activity” while keeping state intact. 6️⃣ Automatic Batching   - Automatically batches state updates for better performance. 7️⃣ React Compiler Support   - Built-in automatic memoization to prevent unnecessary re-renders. ⚙️ #Next.js16 Highlights 1️⃣ App Router Enhancements   - Layout deduplication + incremental prefetching = faster navigation. 2️⃣ Turbopack as Default Bundler   - Now default in both dev and production, with crazy fast rebuilds. 3️⃣ File System Caching (beta)   - Faster startup through persistent caching between runs. 4️⃣ Improved Caching APIs   - New `updateTag()` and refined `revalidateTag()` for better control. 5️⃣ Build Adapters API (alpha)   - Customize build processes for specific platforms/environments. 6️⃣ Proxy (formerly Middleware)   - Lightweight edge redirects and rewrites made simpler. 7️⃣ Dynamic HTML Streaming   - Streams UI progressively from the server integrated with Suspense for blazing-fast first content. PS: I am currently building a mini app that implements some of these new features and I will be sharing it in a few days 👀 It’s an exciting time to be a frontend developer, React and Next are evolving fast but instead of just adding “new stuff,” these updates simplify complexity while keeping performance front and center. I’m genuinely excited for what’s ahead   Have you explored #React19 or #Next.js16 yet? What’s your favorite new feature? #React19 #Nextjs16 #Frontend #LearningInPublic #toyinBuilds #techiebaker

Over the past few weeks, I’ve been exploring #Stencil.js, a powerful tool for building reusable, framework-agnostic Web Components. My focus has been on understanding how Stencil.js components can integrate across multiple ecosystems, including Node.js, React, Angular, and Vue.js. Stencil.js is not a new framework but it's a tool that allows developers to write standard web components that work natively in all modern browsers without extra dependencies. This means a single component library can be shared across various frontend frameworks, greatly improving reusability and reducing maintenance overhead. 🔧 During my exploration, I focused on: Component Development: Built several custom UI components (buttons, modals, and form controls) using Stencil.js with properties, events, and slots. Cross-Framework Integration: ➡️Integrated the same Stencil component into a React app via npm package import and JSX compatibility. ➡️Used it in Angular through module declarations. ➡️Embedded it in a Vue.js app directly as native web components. ➡️Exposed components for Node.js experimenting with server-side rendering setups for better performance. Build Optimization: Configured the Stencil build system to output both ES Modules and custom elements bundles for better framework interoperability. I realized that Stencil.js bridges the gap between frameworks, helping teams maintain a single component library that scales across projects — without rewriting the same UI multiple times. 🎯 Key takeaway: “Build once, use anywhere” isn’t just a theory with Stencil.js — it’s a practical, scalable approach to modern frontend development. #stencil #webcomponents #frontend #dev

10 React Tips Every Frontend Developer Should Know Take your React skills from good to great! Let’s make your components smarter, cleaner, and faster ⚡ ⚛️ 1. Use React.memo() wisely Avoid unnecessary re-renders by memoizing pure components. It’s a simple yet powerful way to improve performance — especially for large lists or heavy UIs. 🧩 2. Keep Components Small & Focused Each component should have one clear purpose. Small components = easy to maintain, test & reuse. ⚙️ 3. Avoid Anonymous Functions in JSX Writing functions directly inside JSX creates new references every render. Define them outside to avoid performance issues. 🪝 4. Use Custom Hooks for Reusable Logic When you find repeating logic across components, turn it into a custom hook. Example: useFetchData() or useDebounce() — clean & reusable! 🧠 5. TypeScript = Fewer Bugs Type safety saves time! Catch errors during development — not after deployment. 🧹 6. Clean Up Side Effects Properly Always return a cleanup function in useEffect. It keeps your app efficient and prevents memory leaks. 🧭 7. Learn the Power of Context API Stop passing props 5 levels deep. Use Context for global state like themes, user data, etc. 💾 8. Lazy Load Components Use React.lazy() and Suspense to split bundles. Your users will thank you for faster load times 🚀 🎯 9. Master Conditional Rendering Keep your UI logic clean — avoid deeply nested ternaries. Readable conditions make debugging painless. 📁 10. Organize Your Folder Structure Group files by feature, not by type. It scales better as your project grows. 🚀 Small Tips → Big Improvements! Consistency, clarity, and clean code always win in the long run. Which tip do you already use the most? 👇 #React #FrontendDevelopment #WebDevelopment #JavaScript #CodingTips #ReactJS

🚀 Thinking about using React.js for your next project? It's a front-end powerhouse, but it's wise to weigh its pros and cons before diving in. Here’s a quick breakdown: 🌟 **Top Advantages of React.js:** ✅ **Component-Based Architecture:** Build encapsulated, reusable components that manage their own state. This makes your code cleaner, more scalable, and easier to debug. ⚡ **High Performance with Virtual DOM:** React creates a virtual copy of the DOM. This allows it to efficiently update and render only the necessary components, leading to a significantly faster and smoother user experience. 🤝 **Massive Community & Ecosystem:** With a vast community and countless libraries (like Next.js, Redux, and Material UI), you have robust support and tools for any feature you need to build. 📈 **SEO-Friendly:** Thanks to Server-Side Rendering (SSR) and frameworks like Next.js, React applications can be easily crawled and indexed by search engines, boosting your visibility. 📱 **Versatile - Learn Once, Write Anywhere:** Your React skills aren't limited to the web. With React Native, you can build native mobile applications for iOS and Android using the same core principles. 🤔 **Key Limitations to Consider:** 📚 **Steep Learning Curve:** Concepts like JSX, state management, and hooks can be challenging for beginners. It requires a solid understanding of JavaScript first. 🏃♂️ **Rapid Pace of Development:** The React ecosystem is constantly evolving. While this means continuous improvement, it can be overwhelming to keep up with new versions, libraries, and best practices. 🧩 **It's a Library, Not a Full Framework:** React is focused on the UI layer. For a complete application, you'll need to integrate other libraries for routing, global state management, and more, which can add complexity. **The Verdict:** React.js is an incredibly powerful and flexible library for building modern user interfaces. However, the best choice always depends on your project's specific needs and your team's expertise. What are your experiences with React? Share your biggest pro or con in the comments! 👇 #ReactJS #JavaScript #WebDevelopment #Frontend #Programming #Developer #SoftwareDevelopment #Coding #UI #Tech #ReactDev #WebDev

🚀 Everyone knows that the dependency array in React’s useEffect runs the effect only once if it’s empty ([]). But have you ever wondered how and why it behaves this way? Let’s dive deeper into useEffect — what it does, how React tracks dependencies behind the scenes, and best practices for smooth React apps. 👇 🔍 What is useEffect? A React Hook that runs side effects like fetching data or setting up event listeners after rendering. It replaces lifecycle methods from class components with a single, elegant API. 🧩 Dependency Array: The Control Center No array: Runs after every render — can cause inefficiency or infinite loops. Empty array []: Runs once, after the first render (mount). With dependencies [dep1, dep2]: Runs after mount and whenever any dependency changes. ⚙️ What Happens Behind the Scenes? React stores the previous list of dependencies and shallowly compares each item with the current list on every render. "Shallow comparison" means React checks if the reference or primitive values are the same, not deeply nested properties. If any dependency has changed or it’s the first render: React runs your cleanup function (if you have one) from the last effect. Then it runs your effect callback with the latest values. If none have changed, React skips running the effect, optimizing performance. 💡 In React 18’s development mode, effects with empty dependency arrays run twice intentionally to detect side effect bugs early — but this doesn’t happen in production. ⌛ Why This Matters: Declaring dependencies correctly ensures your effects run only when needed. Forgetting dependencies can lead to stale data bugs, while over-including can cause excessive renders. ✅ Pro Tips: Always include all variables your effect uses in the dependency array to avoid bugs from stale closures. Memoize functions/objects with useCallback or useMemo since new function/object references cause effect re-runs. Use cleanup functions rigorously to prevent memory leaks and unwanted side effects. 📊 Flowchart Recap: Render ➡️ Compare dependencies ➡️ Cleanup previous effect ➡️ Run new effect #ReactJS #JavaScript #FrontendDevelopment #WebDev #ReactHooks #useEffect #CleanCode #React18 #DeveloperLife #CodingTips #SoftwareEngineering #Programming

Is your React knowledge stuck in 2020? React is still the king of frontend development in 2025, but the "what" and "how" of building high-performance apps have changed dramatically. It's no longer just about useState and useEffect. The skills that define a top-tier React developer today are all about scalability and performance. Here are 3 concepts every modern React developer must master: 1. Beyond Basic Hooks ➡️ Custom Hooks Knowing useState is day 1. True proficiency is knowing when not to clutter your components with complex logic. If you find yourself writing the same useEffect logic in multiple places (e.g., for data fetching, debouncing, or tracking window size), it's time to extract it into a Custom Hook. This is the single best way to write clean, reusable, and testable component logic. 2. Strategic State Management (The useContext Trap) useContext is fantastic for static, global data like a theme or user authentication. The trap is using it for dynamic, high-frequency state. This can trigger performance-killing re-renders across your entire app. For scalable state, you need the right tool for the job. Zustand: My go-to for most projects. It's incredibly simple, fast, and scalable with almost zero boilerplate. Redux Toolkit: Still the powerhouse for complex, enterprise-grade apps where predictable state and powerful dev tools are non-negotiable. 3. The Server-First Mindset (RSC) The biggest shift in the ecosystem is React Server Components (RSC), championed by frameworks like Next.js. The new default is to build components that run on the server. They can access your database directly and send zero client-side JavaScript. You then explicitly opt-in to interactivity with the "use client" directive. Understanding this hybrid model is no longer optional—it's the key to building lightning-fast, modern web applications. What's the one React concept or tool that "clicked" and completely changed how you build apps? #ReactJS #Frontend #WebDevelopment #JavaScript #ReactHooks #StateManagement #RSC #NextJS #SoftwareEngineering #Performance

🤔𝐍𝐞𝐬𝐭𝐉𝐒 𝐯𝐬 𝐍𝐞𝐱𝐭.𝐣𝐬 — 𝐖𝐡𝐲 𝐭𝐡𝐞 𝐜𝐨𝐧𝐟𝐮𝐬𝐢𝐨𝐧? A few days ago, someone on my team asked me:  🗣️“𝘚𝘩𝘰𝘶𝘭𝘥 𝘸𝘦 𝘣𝘶𝘪𝘭𝘥 𝘰𝘶𝘳 𝘯𝘦𝘸 𝘣𝘢𝘤𝘬𝘦𝘯𝘥 𝘪𝘯 𝘕𝘦𝘹𝘵.𝘫𝘴?” “Nest” and “Next”… sounds like a typo, right? 😅 That’s when I realized how often even experienced developers mix them up. So here’s a simple way to remember: 🚀 𝐍𝐞𝐱𝐭.𝐣𝐬 → Frontend framework 🏗️ 𝐍𝐞𝐬𝐭𝐉𝐒 → Backend framework But let’s unpack that a bit 👇 𝐍𝐞𝐱𝐭.𝐣𝐬 is built on 𝐑𝐞𝐚𝐜𝐭 - it helps you build fast, SEO-friendly web apps using features like SSR (Server Side Rendering), static site generation, and routing. 👉 Think of it as the 𝐟𝐚𝐜𝐞 of your app —> what users see and interact with. 𝐍𝐞𝐬𝐭𝐉𝐒 is built on 𝐍𝐨𝐝𝐞.𝐣𝐬 — it’s used to structure and organize your backend using decorators, dependency injection, and TypeScript. 👉 Think of it as the 𝐛𝐫𝐚𝐢𝐧 of your app —> where logic, APIs, and data management happen. And then there’s 𝐍𝐮𝐱𝐭.𝐣𝐬… 🤪🤪 Every tech stack has that one cousin who shows up at reunions and says: “Hey, I’m like Next.js — but for Vue. 😎 ” That’s 𝐍𝐮𝐱𝐭.𝐣𝐬. • Same idea: SSR, SSG, routing, API integration. • Just lives in the 𝐕𝐮𝐞 𝐞𝐜𝐨𝐬𝐲𝐬𝐭𝐞𝐦 instead of React. 💅 𝐍𝐮𝐱𝐭.𝐣𝐬 → Frontend (Vue) —> the stylish cousin who loves reactivity. So, if you’re building a full-stack app, you might actually use both: 🧠 𝐍𝐞𝐬𝐭𝐉𝐒 for the 𝐀𝐏𝐈 layer 🎨 𝐍𝐞𝐱𝐭.𝐣𝐬 for the 𝐔𝐈 layer 😎 𝐍𝐮𝐱𝐭.𝐣𝐬 builds the 𝐕𝐮𝐞-𝐭𝐢𝐟𝐮𝐥 experience. “Tried them all? Tell me -- are you Team Nest, Team Next, or Team Nuxt 😅” #WebDevelopment #Nextjs #Nestjs #Nuxtjs #FullStack #JavaScript #React #Nodejs #TypeScript #Vue

🚀 React vs. Angular vs. Vue — The #Frontend Showdown! When it comes to building modern web apps, the three titans — React, Angular, and Vue — often spark heated debates. Let’s break them down ⚛️ React: The Flexible Powerhouse Type: UI Library — gives you the “engine,” you build the car. Language: JavaScript (TypeScript optional). Data Flow: One-Way (predictable, but needs more setup for complex state). Structure: Very flexible — you choose your routing, state, and tools. Best For: Dynamic, component-driven UIs and single-page apps. 🏰 Angular: The Complete Fortress Type: Full-fledged Framework — comes with everything built-in. Language: TypeScript (mandatory). Data Flow: Two-Way Binding — automatic sync between UI & logic. Structure: Highly opinionated — great for consistency and large teams. Best For: Enterprise-level, complex applications where scalability matters. 🌱 Vue: The Elegant Middle Ground Type: Progressive Framework — combines simplicity with flexibility. Language: JavaScript (TypeScript supported). Data Flow: Mostly One-Way, but Two-Way available via v-model. Structure: Balanced — easy to start, yet powerful for scaling. Best For: Startups, prototypes, or projects needing fast delivery and clean syntax. 🧠 Quick Analogy #Angular is a pre-built mansion — everything’s ready, just move in. #React is a customizable engine — you design your own ride. #Vue is a cozy smart home — simple, elegant, and easy to expand. 💬 Which one powers your favorite frontend project — and why? #FrontendDevelopment #WebDevelopment #JavaScript #Coding #SoftwareDevelopment #LearnToCode #Programming #TechLearning #CodeForBeginners