files/en-us/web/api/pointerevent/pressure/index.md
{{ APIRef("Pointer Events") }}
The pressure read-only property of the
{{domxref("PointerEvent")}} interface indicates the normalized pressure of the pointer
input.
The normalized pressure of the pointer input in the range of 0 to 1, inclusive, where 0 and 1 represent the minimum and maximum pressure the hardware is capable of detecting, respectively. For hardware that does not support pressure, such as a mouse, the value is 0.5 when the pointer is active buttons state and 0 otherwise.
In this snippet, when a {{domxref("Element/pointerdown_event", "pointerdown")}} event is fired, different functions
are called depending on the value of the event's pressure property.
someElement.addEventListener("pointerdown", (event) => {
if (event.pressure === 0) {
// No pressure
process_no_pressure(event);
} else if (event.pressure === 1) {
// Maximum pressure
process_max_pressure(event);
} else {
// Default
processPressure(event);
}
});
{{Specifications}}
{{Compat}}