React Simplifies Frontend Development

Day-12 DOM Manipulation Veltrix IT Solutions Built a complete Authentication UI using HTML, CSS, and JavaScript Implemented DOM manipulation for dynamic UI switching, form validation, and real-time user interaction. Used class toggling, event handling, and console debugging to control frontend behavior efficiently. Tested responsiveness and functionality to ensure a smooth user experience across different states (Login/Register). Github: https://lnkd.in/dYxSvt2m #WebDevelopment #JavaScript #DOM #Frontend #LearningJourney

From fragmentation to scale — JavaScript monorepos are reshaping how frontend teams build and grow. Our latest blog explores how monorepos help teams reduce complexity, improve collaboration, and streamline CI/CD pipelines — all while keeping performance under control. 👉 Read the full article here: https://bit.ly/4strT3R. #growin #knowtogrow #ITteam #techblog #javascript #monorepo

Built a few small projects focused on event handling in JavaScript. Worked with: • event bubbling and capturing • keyboard input display • mouse hover interactions • form submit handling • file upload button behavior • live character counter Most of these were simple individually, but together they gave a clearer understanding of how events actually flow and how the UI responds to user actions. This was less about writing logic, and more about handling interaction properly. #javascript #webdevelopment #frontend #events

Built a Task Pop-up feature using JavaScript to enhance user interaction and improve task management. This helped me understand dynamic DOM manipulation and event handling in real-world scenarios. Continuing to explore and build more interactive web features 🚀 #JavaScript #WebDevelopment #Frontend #LearningJourney

Important Frontend Concepts Checklist- 1. Pagination 2. Infinite Scrollbar 3. Debouncing 4. Websocket 5. REST vs GraphQI APIs 6. Local Storage vs Cookies 7. Authentication vs Authorization 8. Redux ( Or any other state management library) 9. Lazy Loading 10. Code Splitting 11. Bundle Size Optimization 12. Tree Shaking 13. Memoization (useMemo, useCallback) 14. Caching (Client + Server) 15. CSR vs SSR vs SSG vs ISR 16. Core Web Vitals (LCP, INP, CLS) 17. Cross Browser Compatibility 18. Optimistic UI Updates 19. Suspense (React) 20. Image Optimization (WebP, AVIF) 21. Accessibility (a11y) 22. Webpack 23. Micro-Frontend Architecture 24. Unit Testing 25. Polyfills, Babel #ReactDeveloper #FrontEnd #FrontEndDeveloper #Javascript #Angular #AngularDeveloper #react #Typescript

Props vs State ⚔️ 🔹 Props 📥 ✔ Passed from parent component ✔ Read-only (immutable) ✔ Used for communication 🔹 State 📦 ✔ Managed inside component ✔ Can be updated ✔ Controls dynamic behavior 🔹 Key Difference 🧠 📥 Props = External Data 📦 State = Internal Data 🔹 When to Use? 👉 Props → Send data between components 👉 State → Handle user interaction & changes #ReactJS #PropsVsState #FrontendDev #JavaScript

Day- 13 Validation Veltrix IT Solutions Built a complete Auth UI using HTML, CSS & JavaScript with real DOM manipulation 🔐 Implemented two types of validation: ✔️ Registration: open for everyone with proper email format validation ✔️ Login: restricted to a specific Gmail & password If incorrect credentials or invalid email syntax are entered, it instantly shows error feedback on the UI. Focused on clean UI, responsive design, and real-time validation using JavaScript. Github: https://lnkd.in/deafbSq6 #WebDevelopment #JavaScript #Frontend #DOM #Projects

What actually happens inside React when you call setState? It starts with a single JavaScript object called a Fiber. I broke down how the Fiber tree is wired, how React walks through it, and what drives the whole render loop. No magic, just pointers and a while loop. Read more: https://lnkd.in/dFBiQQNz #React #Fiber #rendering #reconciliation #JavaScript #WebDev #SoftwareEngineering #BuildInPublic

I thought useRef was only for accessing DOM… 😅 But I was wrong. 💡 For a long time, I used useRef like this: const inputRef = useRef(); 👉 Focus input, access DOM — that’s it. ⚠️ Then I faced a problem: I needed to store a value 👉 without causing re-render Using useState was triggering re-renders ❌ 💡 Then I discovered: useRef can store mutable values 👉 without re-rendering the component 🧠 Example: const countRef = useRef(0); countRef.current++; 👉 Value updates 👉 But component doesn’t re-render ✅ Result: • Better performance • No unnecessary re-renders • More control over values 🔥 What I learned: useRef is not just for DOM 👉 it’s for persisting values across renders #ReactJS #FrontendDeveloper #JavaScript #ReactInterview #CodingTips #WebDevelopment

Built a Snake Game using Vanilla JavaScript 🐍 Focused not just on functionality, but on writing clean and structured code: • Modular architecture (separation of concerns) • Game state management & smooth loop • High score persistence using localStorage • Start / Restart game flow This project helped me understand how even simple apps can be designed with scalability in mind. Would love feedback and suggestions 🙌 #javascript #webdevelopment #frontend #buildinpublic https://lnkd.in/gYhiMs6d