PointerEvent.pointerId

The pointerId read-only property of the PointerEvent interface is an identifier assigned to a given pointer event. The identifier is unique, being different from the identifiers of all other active pointer events. Since the value may be randomly generated, it is not guaranteed to convey any particular meaning.

Syntax

var id = pointerEvent.pointerId;

Return value

id
The pointer event's unique identifier number.

Example

The following code snippet compares a previously saved pointerId with the one of the pointerdown event that was just fired.

let id; // Let's assume that this is a previously saved pointerId

target.addEventListener('pointerdown', function(event) {
  // Compare previous event's ID that was cached
  // to current event's ID and handle accordingly
  if (id === event.pointerId) process_event(event);
}, false);

Specifications

Specification Status Comment
Pointer Events ā€“ Level 2
The definition of 'pointerId' in that specification.
Recommendation Non-stable version.
Pointer Events
The definition of 'pointerId' in that specification.
Obsolete Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
pointerIdChrome Full support 55Edge Full support 12Firefox 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 10Opera Full support 42Safari Full support 13WebView Android Full support 55Chrome Android Full support 55Firefox 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 42Safari iOS Full support 13Samsung Internet Android Full support 6.0

Legend

Full support Ā 
Full support
User must explicitly enable this feature.
User must explicitly enable this feature.