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react-19
2 postsWhat Actually Crosses the React Server Component Boundary
A deep dive into which prop types survive React 19's Flight serializer across the client boundary, and two subtle traps that break builds despite passing review.
React 19 useOptimistic: Patterns and Pitfalls in Real Forms
React 19's useOptimistic shows results before server confirmation. Battle-tested patterns from a comment box, like button and settings form, plus three costly pitfalls.
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