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WheelEvent: deltaMode プロパティ - Web API | MDN
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このページはコミュニティーの尽力で英語から翻訳されました。MDN Web Docs コミュニティーについてもっと知り、仲間になるにはこちらから。
WheelEvent: deltaMode 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 2015年7月.
WheelEvent.deltaMode は読み取り専用のプロパティで、デルタ値のスクロール量の単位を表す unsigned long を返します。
取りうる値は次の通りです。
| 定数 | 値 | 説明 |
|---|---|---|
DOM_DELTA_PIXEL |
0x00 |
デルタ値はピクセル数で指定されます。 |
DOM_DELTA_LINE |
0x01 |
デルタ値は行数で指定されます。 |
DOM_DELTA_PAGE |
0x02 |
デルタ値はページ数で指定されます。 |
値
unsigned long です。
例
js
const syntheticEvent = new WheelEvent("syntheticWheel", {
deltaX: 4,
deltaMode: 0,
});
console.log(syntheticEvent.deltaMode);
仕様書
| Specification |
|---|
| UI Events # dom-wheelevent-deltamode |
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