KeyboardEvent: isComposing プロパティ

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

KeyboardEvent.isComposing は読み取り専用プロパティで、イベントが変換セッションの途中、すなわち compositionstart の後かつ compositionend の前に発行されたことを示す論理値を返します。

論理値です。

js
const kbdEvent = new KeyboardEvent("syntheticKey", false);
console.log(kbdEvent.isComposing); // false を返す

仕様書

Specification
UI Events
# dom-keyboardevent-iscomposing

ブラウザーの互換性

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desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
isComposing

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Full support
Full support

関連情報