If you're preparing for senior React interviews especially ones focused on architecture and UI patterns, I’ve put together 5 advanced questions that go way beyond hooks and props.
These aren’t theoretical questions.
Each one includes real-world scenarios, trade-offs, demos, and full code walkthroughs — all available on IOCombats.
Here are 5 advanced UI-pattern-focused React interview questions you can prepare yourself with:
How would you implement a calendar component with event scheduling in React? - IO Combats
Design a full-featured calendar with day/week/month views, event creation, drag-to-resize, recurring events, and conflict detection.
iocombats.com
How would you build a collaborative whiteboard in React? - IO Combats
Design a real-time collaborative whiteboard using canvas, WebSockets/WebRTC, CRDT syncing, undo/redo, and multi-user presence.
iocombats.com
How would you design a modal manager system in React? - IO Combats
Create a global modal manager with stacking, portal rendering, focus trapping, ESC handling, and dynamic modal types.
iocombats.com
How would you design a virtualized list for 100K+ items in React? - IO Combats
Design a high-performance virtualized list capable of rendering 100k+ rows with minimal DOM nodes, supporting variable heights, infinite scroll, and windowing strategies.
iocombats.com
How would you design a drag-and-drop Kanban board in React? - IO Combats
Design a Kanban board with drag-and-drop between columns, persistence, optimistic UI updates, and accessibility considerations.
iocombats.com
🚀 Want more?
I’m dropping new advanced React questions every week — complete with diagrams, code, and real production-level scenarios.
Check them out, practice them, and level up your UI engineering skills.
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