Q45: What are Optimistic UI Updates in React applications?
Optimistic updates immediately update local UI state to show expected successful operation results before receiving server confirmation. If the network request fails, local state rolls back to previous values.
Key Takeaways
- Provides instant user feedback by updating UI assuming server operations succeed.
- Requires state rollback mechanisms when background network operations fail.
Knowledge Check
What must an application perform if an optimistically updated network request fails?