Answer
React buffers out-of-order chunks and only hydrates them when boundary segments are complete.
Quick Answer
React assigns each Suspense boundary a unique ID in the HTML stream. When streaming HTML chunks arrive, React's client-side code matches each chunk to its boundary ID. If chunks arrive out of order, React buffers them. DOM insertion happens in the correct boundary order regardless of network delivery order.
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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