Document Controlled vs Uncontrolled Component Design pattern

pursuant to this discussion https://twitter.com/dan_abramov/status/1001943857096003584

all react components can be:

• controlled (no internal state)
• uncontrolled (internal state)
• mixed (uncontrolled by default, unless some props are passed to make it controlled)

the current docs on controlled vs uncontrolled: https://reactjs.org/docs/uncontrolled-components.html focus entirely on forms, but this design pattern applies to -all- components. we should document this.

questions

1. What else should we say in the docs?
2. do we want to tell people that they can do "mixed control" or do we leave that for people to discover for themselves?
3. is this the same page as https://reactjs.org/docs/uncontrolled-components.html or is it a separate page?

既存の uncontrolled-components.html ドキュメントとリンク先のディスカッションから始めます。controlled, uncontrolled, and mixed component patterns をこのページに置くべきか、別のページに置くべきかを判断し、ドキュメントで提供すべきガイダンスを決定します。選択したドキュメントがフォーム以外のパターンも明確にカバーし、スコープに関する未解決の質問に答えられれば完了です。