React 19: How Combining useOptimistic and useActionState Can Break Your Reset Button

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React 19 introduced the useOptimistic hook to enable instant UI updates before a server response is confirmed, automatically rolling back changes if a request fails without manual state management. Developer and writer explored combining useOptimistic with useActionState in a single form, aiming to handle both optimistic rendering and server-driven state transitions together. The integration worked smoothly for posting and confirming data, but exposed a subtle bug where the form's reset button stopped functioning as expected. The author traced the issue to how the two hooks interact around pending transitions and form state resets, sharing the mistakes openly to help other developers avoid the same pitfalls. The article is the second in a series, following an earlier piece on useActionState, and links to a full useOptimistic tutorial covering the complete API and edge cases.

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DeepMind Splits Robot Brain and Body With Three-Model Gemini Robotics 2 Suite

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

Your Phone Probably Isn't Listening — But It Doesn't Need To

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