PointerEvent: pointerId property
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.
Value
A number.
Examples
The following code snippet compares a previously saved pointerId
with the
one of the pointerdown
event that was just fired.
js
let id; // Let's assume that this is a previously saved pointerId
target.addEventListener(
"pointerdown",
(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 |
---|
Pointer Events # dom-pointerevent-pointerid |
Browser compatibility
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