Translate React 17 RC blog #349
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smikitky
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Aug 21, 2020
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| React has been doing event delegation automatically since its first release. When a DOM event fires on the document, React figures out which component to call, and then the React event "bubbles" upwards through your components. But behind the scenes, the native event has already bubbled up to the `document` level, where React installs its event handlers. | ||
| React は最初のリリース時点からこのようなイベントデリゲーションを自動的に行っていました。ドキュメントで DOM イベントが発生すると、React はどのコンポーネントを呼び出すべきか判定し、React のイベントがあなたのコンポーネントツリー内を上側に向かって「バブリング」していきます。しかしその裏側では、この時点でネイティブのイベントが既に `document` のレベルにバブリングし終わっているのであり、そこに React はイベントハンドラを仕込んでいるのです。 |
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イベントをバブリングさせることを「コンポーネントをコールする」とは普通言わないと思うので、"which component to call" をどうするか困っています。文脈的には「イベントの発生源となったコンポーネントを判定し」とか「どのコンポーネントが関連するか特定し」などとすればしっくり来ますが…。
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今のままでも言いたいことは理解出来るので、このままでもいいかなと思いました。
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koba04
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Aug 21, 2020
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Co-authored-by: Toru Kobayashi <koba0004@gmail.com>
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