Component
lastmod 2026-11-10created 2026-04-033 edits
A Component is a piece of a user interface or software split into an independently reusable unit. In web frontends it refers to a bundle of markup, styles, and behavior responsible for one part of the screen, and it is the basic building block of frameworks such as React and Vue. This page collects related concepts such as the browser-standard Web Component, framework-specific components, and controlled and uncontrolled components.