React.Component – React

These docs are old and won’t be updated. Go to react.dev for the new React docs. These new documentation pages teach modern React: React.Component This page contains a detailed API reference for the React component class definition. It assumes you’re familiar with fundamental React concepts, such as Components and Props, as well as State and Lifecycle. If you’re not, read them first. Overview Reac

[kitokitoki]

render() の仕様

[tanalab2]

componentのライフサイクル

[kent-where-the-light-is]

“Mounting # These methods are called when an instance of a component is being created and inserted into the DOM: constructor() componentWillMount() render() componentDidMount() Updating # An update can be caused by changes to props or state. These methods are called when a component is being re-re

[berlysia]

Reactと他のライブラリ（例はjQuery）の共存例。更新させないコンポーネントを作ってその配下を管理させる分には問題ない

[xrekkusu]

黒魔術 - DOM Event Listeners in a Component | React :

[ttskch]

なるほど

[xoyip]

componentDidUpdate

[otiai10]

“setState() will always trigger a re-render unless conditional rendering logic is implemented in shouldComponentUpdate().”

[umai_bow]

setStateがトリガーか