Optimistic UI keeps web apps fast and responsive by instantly updating the UI upon user actions without waiting for server confirmation. This technique enhances user experience by reducing perceived latency and providing instant feedback. SWR (Stale-While-Revalidate) is introduced as a React hook library that balances performance and freshness while fetching data, supporting features like caching and pagination. The post details setting up a task app with and without Optimistic UI, covering CRUD operations, implementing delays to simulate real-world scenarios, and handling tasks with SWR for better user engagement.
Table of contents
What We'll Cover:What is Optimistic UI?Why Does Optimistic UI Matter?Other Benefits of Optimistic UIIntroducing SWR: Stale-While-RevalidateHow to Set Up the EnvironmentHow to Build the Task App UIDrawbacks of Optimistic UIIdeal Use Cases for Optimistic UIConclusionSort: