Baseline Widely available
The WheelEvent.deltaZ
read-only property is a double
representing the scroll amount along the z-axis, in the WheelEvent.deltaMode
unit.
You must check the deltaMode
property to determine the unit of the deltaZ
value. Do not assume that the deltaZ
value is specified in pixels. Some browsers, for compatibility reasons, may return different units for the deltaZ
value depending on whether deltaMode
has been accessed, to accommodate for websites not explicitly checking the deltaMode
property.
A number.
Examplesconst syntheticEvent = new WheelEvent("syntheticWheel", {
deltaZ: 4,
deltaMode: 0,
});
console.log(syntheticEvent.deltaZ);
Specifications Browser compatibility See also
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