index.md

title	short-title	slug	page-type	browser-compat
WheelEvent: deltaX property	deltaX	Web/API/WheelEvent/deltaX	web-api-instance-property	api.WheelEvent.deltaX

{{APIRef("UI Events")}}

The WheelEvent.deltaX read-only property is a double representing the horizontal scroll amount in the {{domxref("WheelEvent.deltaMode")}} unit.

Value

A number.

Examples

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

console.log(syntheticEvent.deltaX);

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• {{domxref("Element/wheel_event","wheel")}}
• {{domxref("WheelEvent")}}