hydration

noun

Hydration is the process of connecting server-rendered HTML with client-side code and application state to make a page interactive.

After hydration, a user can apply a product filter without refreshing the page.

A server can send HTML to the browser before JavaScript is ready. During hydration, a framework uses JavaScript to connect the existing page to the application so elements such as buttons can respond to interaction.

The Qwik documentation describes hydration as restoring information such as event listeners, the component tree and application state. Qwik uses Glossary · In briefresumabilityResumability is the approach Qwik uses to resume an application in the browser from information saved during server rendering, without replaying all application logic.Read more⁠ instead: the browser resumes the application from information saved during server rendering.