Your question is State Management in React. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
How do you manage state effectively in a large-scale React.js application?
Explain how you would separate local UI state, shared application state, server cache, and URL state. Discuss state ownership, update flows, performance, testing, persistence, and recovery from stale or failed data. Include how you would detect and mitigate excessive re-renders, inconsistent state, and training-serving concerns where client state influences ML-powered features.
