WheelEvent.deltaMode
The WheelEvent.deltaMode
read-only property returns an unsigned long
representing the unit of the delta values scroll amount. 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. |
Syntax
JavaScript
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var <code>unit = event.deltaMode;</code>
Example
JavaScript
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var syntheticEvent = new WheelEvent("syntheticWheel", {"deltaX": 4, "deltaMode": 0}); console.log(syntheticEvent.deltaMode);
Specifications
Specification | Status | Comment |
---|---|---|
Document Object Model (DOM) Level 3 Events Specification The definition of 'WheelEvent.deltaMode' in that specification. |
Working Draft | Initial definition. |
Browser compatibility
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|---|
Basic support | 31 | (Yes) | 17.0 (17.0) | 9.0 | 18 | 7.0 |
Feature | Android | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|
Basic support | (Yes) | 17.0 (17.0) | ? | (Yes) | Not supported |
See also
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/wheelevent/deltamode