WheelEvent：deltaMode 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 2015年7月.

WheelEvent.deltaMode 只读属性返回 unsigned long，表示滚动量的 delta 值的单位。允许的值为：

值

unsigned long。

const syntheticEvent = new WheelEvent("syntheticWheel", {
  deltaX: 4,
  deltaMode: 0,
});

console.log(syntheticEvent.deltaMode);

Specification
UI Events # dom-wheelevent-deltamode

This page was last modified on 2024年6月24日 by MDN contributors.