Answer
React performs selective hydration, prioritizing interactive components, visible elements, and network-ready content.
Quick Answer
React 18 uses selective hydration: components inside Suspense boundaries are hydrated on demand. If the user interacts with a not-yet-hydrated component, React prioritizes hydrating that boundary immediately, even if other boundaries were registered first. User interaction signals high priority.
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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