react.dev/content/home/examples/a-stateful-component.md

---
title: A Stateful Component
order: 1
domid: timer-example
---

In addition to taking input data (accessed via `this.props`), a component can maintain internal state data (accessed via `this.state`). When a component's state data changes, the rendered markup will be updated by re-invoking `render()`.
Shift out examples content 7 years ago			`---`
			`title: A Stateful Component`
			`order: 1`
Clarify DOM container in homepage examples (#1526) 6 years ago			`domid: timer-example`
Shift out examples content 7 years ago			`---`

			In addition to taking input data (accessed via `this.props`), a component can maintain internal state data (accessed via `this.state`). When a component's state data changes, the rendered markup will be updated by re-invoking `render()`.