Asynchronous JavaScript and Data Fetching Questions

Focus on designing robust client side data fetching and asynchronous flows. Topics include promises async await error handling request cancellation using AbortController retry and backoff strategies optimistic updates reconciliation and avoidance of race conditions and stale reads. Expect discussion of debouncing throttling pagination streaming chunked loading and approaches to integrate network state and offline considerations into the user interface. Candidates should cover testing strategies for network interactions and techniques to keep the UI consistent during concurrent requests and intermittent failures.