The WheelEvent() constructor returns a new WheelEvent object.
Note: If you construct a synthetic event using this constructor, that event will not be trusted, for security reasons. Only browser-generated WheelEvent objects are trusted and only trusted events trigger default actions.
js
new WheelEvent(type)
new WheelEvent(type, options)
type
A string with the name of the event. It is case-sensitive and browsers always set it to wheel.
options Optional
An object that, in addition of the properties defined in MouseEvent(), can have the following properties:
deltaX Optional
A floating number representing the horizontal scroll amount in the deltaMode unit. It defaults to 0.0.
deltaY Optional
A floating number representing the vertical scroll amount in the deltaMode unit. It defaults to 0.0.
deltaZ Optional
A floating number representing the scroll amount for the z-axis scroll amount in the deltaMode unit. It defaults to 0.0.
deltaMode Optional
An integer representing the unit of the delta values scroll amount. It defaults to 0x00. Permitted values are:
| Constant | Value | Description |
|---|---|---|
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. |
A new WheelEvent object.
| Specification |
|---|
| UI Events # dom-wheelevent-wheelevent |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
WheelEvent |
26 | 12 | 17 | No | 15 | 7 | 4.4 | 26 | 17 | 14 | 7 | 1.0 |
WheelEvent interface it belongs to.© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/WheelEvent/WheelEvent