Answer
Only selected components are hydrated, reducing JavaScript execution and improving performance.
Quick Answer
Partial hydration means only interactive parts of the page are hydrated — static content stays as plain HTML with no JavaScript attached. This reduces the client-side JS work needed to make the page interactive. React 18's selective hydration (in Suspense boundaries) is a form of partial hydration — interactive islands are hydrated on demand.
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.
Want to bookmark, take notes, or join discussions?
Sign in to access all features and personalize your learning experience.
Source: SugharaIQ