Optimistic UI: Assume Success for a Faster Feel
An optimistic UI assumes an action will succeed, updating the interface instantly instead of waiting for the server. This makes actions like liking a post or adding to a cart feel instant. The footgun is failing to revert the UI when the server reports an.
An optimistic UI assumes a server action will succeed, updating the interface instantly for better perceived performance. It decouples user feedback from the network round-trip, which often exceeds the 100ms where users perceive lag. It's ideal for low-risk actions like liking a post or adding to a cart. The footgun is not having a robust rollback strategy; you must revert the UI on failure to avoid showing a state that isn't real.
Read the original → simonhearne.com
- #frontend
- #ux
- #performance
- #ui-patterns
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