Frontend Development Checklist: Key Concepts and Best Practices

Important Frontend Concepts Checklist- 1. Pagination 2. Infinite Scrollbar 3. Debouncing 4. Websocket 5. REST vs GraphQl APIs 6. Local Storage vs Cookies 7. Authentication vs Authorization 8. Redux 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. Testing- RTL, Jest, Playwright 25. Polyfills, Babel #javascript #javascriptdeveloper #reactjs #reactnative #vuejsdeveloper #angular #angulardeveloper

Important Frontend Concepts Checklist- 1. Pagination 2. Infinite Scrollbar 3. Debouncing 4. Websocket 5. REST vs GraphQl APIs 6. Local Storage vs Cookies 7. Authentication vs Authorization 8. Redux 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. Testing- RTL, Jest, Playwright 25. Polyfills, Babel Get ebook with (detailed 232 ques = 50+ Reactjs Frequent Ques & Answers, 45+ Reactjs scenario based questions, 90+ frequently asked interview questions and answers, 50+ Output based ques & ans, 25+ Coding Questions & ans) 𝐄𝐛𝐨𝐨𝐤 𝐋𝐢𝐧𝐤: https://lnkd.in/gJMmH-PF Interview Guidance: https://lnkd.in/gr9PCuxd Follow on Instagram : https://lnkd.in/g-iSTsRd #javascript #javascriptdeveloper #reactjs #reactnative #vuejsdeveloper #angular #angulardeveloper

Important Frontend Concepts Checklist- 1. Pagination 2. Infinite Scrollbar 3. Debouncing 4. Websocket 5. REST vs GraphQl APIs 6. Local Storage vs Cookies 7. Authentication vs Authorization 8. Redux 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. Testing- RTL, Jest, Playwright 25. Polyfills, Babel Get ebook with (detailed 232 ques = 50+ Reactjs Frequent Ques & Answers, 45+ Reactjs scenario based questions, 90+ frequently asked interview questions and answers, 50+ Output based ques & ans, 25+ Coding Questions & ans) 𝐄𝐛𝐨𝐨𝐤 𝐋𝐢𝐧𝐤: https://lnkd.in/gJMmH-PF Interview Guidance: https://lnkd.in/gr9PCuxd Follow on Instagram : https://lnkd.in/g-iSTsRd #javascript #javascriptdeveloper #reactjs #reactnative #vuejsdeveloper #angular #angulardeveloper

Important Frontend Concepts Checklist- 1. Pagination 2. Infinite Scrollbar 3. Debouncing 4. Websocket 5. REST vs GraphQl APIs 6. Local Storage vs Cookies 7. Authentication vs Authorization 8. Redux 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. Testing- RTL, Jest, Playwright 25. Polyfills, Babel Get ebook with (detailed 232 ques = 50+ Reactjs Frequent Ques & Answers, 45+ Reactjs scenario based questions, 90+ frequently asked interview questions and answers, 50+ Output based ques & ans, 25+ Coding Questions & ans) 𝐄𝐛𝐨𝐨𝐤 𝐋𝐢𝐧𝐤: https://lnkd.in/gJMmH-PF Interview Guidance: https://lnkd.in/gr9PCuxd Follow on Instagram : https://lnkd.in/g-iSTsRd hashtag #javascript #javascriptdeveloper #reactjs #reactnative #vuejsdeveloper #angular #angulardeveloper

Stop overcomplicating Micro-frontends architecture — when and how to split your frontend. I've reviewed hundreds of implementations. The best ones? Dead simple. The pattern: - Start with the boring solution - Measure actual bottlenecks - Only then add complexity Premature optimization is real, and it kills projects. What's the simplest solution you've shipped that just worked? #WebDevelopment #TypeScript #Frontend #JavaScript

🚀 𝗕𝘂𝗶𝗹𝘁 & 𝗣𝘂𝗯𝗹𝗶𝘀𝗵𝗲𝗱: 𝘂𝘀𝗲-𝘁𝗵𝗲𝗺𝗲-𝗺𝗼𝗱𝗲 🌗 𝘈 𝘭𝘪𝘨𝘩𝘵𝘸𝘦𝘪𝘨𝘩𝘵 𝘙𝘦𝘢𝘤𝘵 𝘩𝘰𝘰𝘬 𝘧𝘰𝘳 𝘥𝘢𝘳𝘬/𝘭𝘪𝘨𝘩𝘵 𝘮𝘰𝘥𝘦 Dark mode shouldn’t be complicated or overly opinionated. That’s why I built 𝘂𝘀𝗲-𝘁𝗵𝗲𝗺𝗲-𝗺𝗼𝗱𝗲, an open‑source React hook that focuses purely on 𝘁𝗵𝗲𝗺𝗲 𝘀𝘁𝗮𝘁𝗲 𝗺𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁, while giving developers full control over styling. ✅ 𝗪𝗵𝗮𝘁 𝗶𝘁 𝗵𝗮𝗻𝗱𝗹𝗲𝘀 𝗼𝘂𝘁 𝗼𝗳 𝘁𝗵𝗲 𝗯𝗼𝘅: • Light and dark theme switching • System preference detection (prefers-color-scheme) • Persistent theme using localStorage • Cross‑tab theme synchronization • SSR‑safe (works with Next.js) • Zero runtime dependencies You control the UI. The hook handles the logic. 🔗 𝗟𝗶𝘃𝗲 𝗗𝗲𝗺𝗼: https://lnkd.in/d2AprnYd 📝 𝗙𝘂𝗹𝗹 𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗯𝗹𝗼𝗴 𝗼𝗻 𝗗𝗘𝗩.𝘁𝗼: https://lnkd.in/d78gT_zB 📦 𝗻𝗽𝗺 𝗽𝗮𝗰𝗸𝗮𝗴𝗲: https://lnkd.in/dHF6iM7T This project was a great learning experience around: • npm publishing & versioning • token‑based npm security • documentation & demos • shipping production‑ready open source Feedback, suggestions, and contributions are always welcome 🚀 #React #JavaScript #Frontend #OpenSource #WebDevelopment #NPM #DarkMode #OSS

Debouncing vs Throttling — simple but powerful ⚡ I used to mix these up a lot. Here’s the easiest way to think about it: Debounce → waits until you stop Example: typing in a search bar → API call fires after you finish typing Throttle → runs at a fixed interval Example: scrolling → function runs every few ms, not constantly 👉 Debounce = fewer calls, better for inputs 👉 Throttle = smoother UI, better for continuous actions Small concept, but it makes a big difference in performance. #Frontend #JavaScript #WebPerformance

There was a time when frontend felt like wiring everything by hand… We’d grab elements with getElementById or querySelector, attach event listeners, managing callbacks, deal with closures, and manually clean things up. Focus an input on button click? Add an event listener, handle event propagation (capturing vs bubbling—using the third parameter when needed), and remember to remove it properly to avoid leaks. Events? Built-in with JSX Synthetic Events (onClick, onChange) We just use: ref.current?.focus() // directly access Web API method when needed #React #webdevelopement #javascript

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