Answer
React uses ref-counted wakeable objects and deduplicates promise listeners to prevent memory overhead.
Quick Answer
React deduplicates suspended Promises — if multiple components suspend on the same Promise, React only resolves it once. Resolved Promise results are cached in the fiber tree during the current render, then discarded when the render commits. React doesn't hold large Promise result buffers — it resolves, commits, and moves on.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ