Web/API/PointerEvent/pressure

The pressure read-only property of the PointerEvent interface indicates the normalized pressure of the pointer input.

Syntax

var pressure = pointerEvent.pressure;

Return value

pressure: 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.

Example

In this snippet, when a pointerdown event is fired, different functions are called depending on the value of the event's pressure property.

someElement.addEventListener('pointerdown', function(event) {
  if (event.pressure == 0) {
    // No pressure
    process_no_pressure(event);
  } else if (event.pressure == 1) {
    // Maximum pressure
    process_max_pressure(event);
  } else {
    // Default
    process_pressure(event);
  }
}, false);

Specifications

Specification	Status	Comment
Pointer Events – Level 2The definition of 'pressure' in that specification.	Recommendation	Non-stable version.
Pointer EventsThe definition of 'pressure' in that specification.	Obsolete	Initial definition.

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`pressure`	Chrome Full support 55	Edge Full support 12	Firefox Full support 59 Full support 59 Full support 41 Disabled' Disabled' From version 41: this feature is behind the `dom.w3c_pointer_events.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config.	IE Full support 11 Full support 11 Partial support 10 Notes' Notes' Returns 0 instead of 0.5 on hardware that doesn't support pressure.	Opera Full support 42	Safari Full support 13	WebView Android Full support 55	Chrome Android Full support 55	Firefox Android Full support 41 Disabled' Full support 41 Disabled' Disabled' From version 41: this feature is behind the `dom.w3c_pointer_events.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config.	Opera Android Full support 42	Safari iOS Full support 13	Samsung Internet Android Full support 6.0

Legend

Full support: Full support
See implementation notes.': See implementation notes.
User must explicitly enable this feature.': User must explicitly enable this feature.