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Optimistic UI: Making Apps Feel Faster (Even When They’re Not)
- Optimistic UI assumes that actions will succeed, updating the UI immediately.
- Optimistic UI works well when actions are likely to succeed and a fast response is important.
- Cache management is essential for maintaining consistency between what the user sees and the actual data stored on the server.
- Building an Optimistic UI typically involves steps like setting up local state and cache, triggering optimistic update, sending a request to server and confirming/reverting actions.
- Pros of Optimistic UI are Instant feedback, enhanced Core Web Vitals, and higher user engagement.
- Cons of Optimistic UI are higher error handling complexity, risk of inconsistent data, and increased testing requirements.
- Upcoming updates like React 19 will make it easier to manage complex asynchronous actions with improved performance and ease of use.
- Future updates to tools like React Query and Apollo Client will simplify cache management, optimistic updates, and error handling.
- Optimistic UI is a technique that makes apps feel more responsive by updating the UI before receiving a server response.
- With good cache management, an Optimistic UI can create a smooth user experience, improve Core Web Vitals, and can help build high-performance, user-friendly applications.
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