React 19 useOptimistic: Instant UI Without Lying to the Server
How to wire useOptimistic with Actions so toggles and comments feel native, roll back on failure, and stay consistent when two mutations overlap.
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Articles tagged React on The Augmented Dev.
6 articles
How to wire useOptimistic with Actions so toggles and comments feel native, roll back on failure, and stay consistent when two mutations overlap.
The hardest part of React Server Components isn't the syntax — it's knowing which kind of component you're writing and why. Here is the mental model that makes the boundary obvious.
The like button that responds before the server confirms feels instant. The trick is updating the UI first and reconciling later — and handling the rollback so you never mislead the user.
A search box that fires a request on every keystroke, a scroll handler running 60 times a second — these are debounce and throttle problems. The concepts are simple; React makes them subtly tricky.
A practical guide to the features that changed how we build React apps — Server Components, the new compiler, and the patterns that stuck.
A step-by-step guide to building a live-updating dashboard using Next.js API routes, Server-Sent Events, and Supabase Realtime — with reconnection handling and smooth UI transitions.