seniorReact

What is hydration in React?

Updated Apr 23, 2026

Short answer

Hydration attaches event listeners to server-rendered HTML.

Deep explanation

React reuses HTML from SSR and binds it with client-side logic instead of re-rendering.

Unlock with a Pro subscription to view this section.

View pricing

Real-world example

No real-world example available yet.

Unlock with a Pro subscription to view this section.

Upgrade to Pro

Common mistakes

No common mistakes listed yet.

Unlock with a Pro subscription to view this section.

Upgrade to Pro

Follow-up questions

No follow-up questions available yet.

Unlock with a Pro subscription to view this section.

Upgrade to Pro

More React interview questions

View all →