Answer
It returns a deferred version of a rapidly changing value, allowing heavy UI updates to lag behind typing.
Quick Answer
useDeferredValue accepts a value and returns a deferred (potentially stale) version of it. React renders the UI with the immediate value first, then re-renders with the deferred value when it has time. Useful for search inputs — the text field updates instantly, but the expensive filtered list updates slightly later without blocking input.
S
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