WheelEvent.deltaY
The WheelEvent.deltaY read-only property is a
double representing the vertical scroll amount in the
WheelEvent.deltaMode unit.
Syntax
var dY = event.deltaY;
Example
var syntheticEvent = new WheelEvent("syntheticWheel", {"deltaY": 4, "deltaMode": 0});
console.log(syntheticEvent.deltaY);
Specifications
| Specification |
|---|
| UI Events # dom-wheelevent-deltay |
Browser compatibility
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