WheelEvent：deltaY 属性
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.
WheelEvent.deltaY 只读属性是一个表示以 WheelEvent.deltaMode 为单位的垂直滚动量的 double 值。
值
数字。
示例
js
const syntheticEvent = new WheelEvent("syntheticWheel", {
deltaY: 4,
deltaMode: 0,
});
console.log(syntheticEvent.deltaY);
规范
| Specification |
|---|
| UI Events # dom-wheelevent-deltay |