WheelEvent.deltaY

The WheelEvent.deltaY read-only property is a double representing the vertical scroll amount in the WheelEvent.deltaMode unit.

Value

A number.

Examples

const syntheticEvent = new WheelEvent("syntheticWheel", { "deltaY": 4, "deltaMode": 0 });

console.log(syntheticEvent.deltaY);

Specifications

Specification
UI Events
# dom-wheelevent-deltay

Browser compatibility

BCD tables only load in the browser

See also