Q11. What is React hydration?
React hydration is used to add client-side JavaScript interactivity to pre-rendered static HTML generated by the server. It is used only for server-side rendering(SSR) to...
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Q12. How does useLayoutEffect work during server-side rendering (SSR)?
The `useLayoutEffect` hook does **not run on the server**, because there is no DOM. React issues a warning in server environments like Next.js if `useLayoutEffect` is use...
Q13. What is Streaming SSR and how does React 18+ improve it?
**Streaming SSR** sends HTML to the browser in chunks as it's generated, rather than waiting for the entire page. React 18+ dramatically improves this with Suspense integ...
Q14. What is `renderToPipeableStream` and how is it different from `renderToString`?
`renderToPipeableStream` is the React 18+ Node.js streaming SSR API from `react-dom/server`. It streams HTML in chunks, so users can see content earlier and React can coo...
Q15. What is CRA and its benefits?
**⚠️ OUTDATED:** Create React App (CRA) is no longer actively maintained and is not recommended for new projects as of 2024+. **Modern Alternatives:** Use **Vite** (for S...