WheelEvent() | Web API

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WheelEvent() constructor returns a newly created WheelEvent 对象。

var wheelEvent = new WheelEvent(typeArg, wheelEventInit);

typeArg

是


									DOMString

表示事件的名称。

wheelEventInit 可选

是


								WheelEventInit

字典，拥有以下字段：

"deltaX" , optional and defaulting to 0.0 ，是 double representing the horizontal scroll amount in the deltaMode unit.
"deltaY" , optional and defaulting to 0.0 ，是 double representing the vertical scroll amount in the deltaMode unit.
"deltaZ" , optional and defaulting to 0.0 ，是 double representing the scroll amount for the z-axis in the deltaMode unit.


										"deltaMode"

, optional and defaulting to

，是


										unsigned long

representing the unit of the delta values scroll amount. Permitted values are:

常量	值	描述
`DOM_DELTA_PIXEL`	`0x00`	The delta values are specified in pixels.
`DOM_DELTA_LINE`	`0x01`	The delta values are specified in lines.
`DOM_DELTA_PAGE`	`0x02`	The delta values are specified in pages.

WheelEventInit 字典还接受字段来自 MouseEventInit , UIEventInit and EventInit 字典。

规范	状态	注释
DOM (文档对象模型) 3 级事件规范 The definition of 'WheelEvent()' in that specification.	过时	初始定义

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`WheelEvent()` 构造函数	Chrome Yes	Edge ≤18	Firefox 17	IE No	Opera Yes	Safari 6.1	WebView Android Yes	Chrome Android Yes	Firefox Android 17	Opera Android Yes	Safari iOS No	Samsung Internet Android Yes