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
var unit = event.deltaMode;Example
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. |
Obsolete | Initial definition. |
Browser compatibility
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