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PointerEvent.pointerId

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Summary

An identifier assigned to a pointer event that is unique from the identifiers of all active pointer events at the time. Authors cannot assume values convey any particular meaning other than an identifier for the pointer that is unique from all other active pointers.

This property is Read only .

Syntax

var id = pointerEvent.pointerId;

Return value

id
The pointer event's unique identifier number.

Example

This example illustrates the PointerEvent interface's pointerId property.

The following code snippet compares a previously saved pointer id with the identifier of the pointerdown event that was just fired.

var id;

target.addEventListener("pointerdown", function(ev) {
   // Compare previous id that was cached with this event's id
   // and handle accordingly
   if (id == ev.identifier) process_event(ev);
 }, false);

Specifications

Specification Status Comment
Pointer Events – Level 2
The definition of 'pointerId' in that specification.
Editor's Draft Non-stable version.
Pointer Events
The definition of 'pointerId' in that specification.
Recommendation Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support Not supported (Yes) [1] 10 Not supported Not supported
Feature Android Android Webview Chrome for Android Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile
Basic support Not supported Not supported Not supported Not supported Not supported 10 Not supported Not supported

[1] Implementation withdrawn. See bug 1166347.

Document Tags and Contributors

 Contributors to this page: rolfedh, AFBarstow
 Last updated by: rolfedh,