𝗥𝗼𝘂𝗻𝗱 𝟭 – 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹
1️⃣ Explain event loop and how asynchronous tasks are executed in JavaScript.
2️⃣ Implement a custom hook in React that debounces input value.
3️⃣ Create a reusable dropdown component that supports search and multi-select.
4️⃣ How would you optimize React rendering performance in large lists (e.g., 10k+ rows)?
5️⃣ Explain the difference between controlled and uncontrolled components with examples.
𝗥𝗼𝘂𝗻𝗱 𝟮 – 𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 / 𝗗𝗲𝘀𝗶𝗴𝗻
1️⃣ How would you design a scalable React application for a dashboard with 100+ pages?
2️⃣ Explain how code splitting and lazy loading improve performance.
3️⃣ How do you handle API rate limits gracefully on the frontend?
4️⃣ What is hydration in Next.js and when can it cause UI mismatches?
5️⃣ How would you build a component library used by multiple teams?
6️⃣ Explain CSR, SSR, and SSG — when would you use each?
7️⃣ How would you design a frontend architecture that can handle 1M+ users daily?
𝗥𝗼𝘂𝗻𝗱 𝟯 – 𝗠𝗮𝗻𝗮𝗴𝗲𝗿𝗶𝗮𝗹 / 𝗕𝗲𝗵𝗮𝘃𝗶𝗼𝗿𝗮𝗹
1️⃣ Tell me about a time when a critical production bug broke the UI — how did you handle it?
2️⃣ How do you prioritize technical debt vs. new features?
3️⃣ Describe how you handle conflicts with designers or backend teams.
4️⃣ How do you communicate complex technical decisions to non-technical stakeholders?
