Class XRLayerAbstract

The addEventListener() method of the EventTarget interface sets up a function that will be called whenever the specified event is delivered to the target.

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The dispatchEvent() method of the EventTarget sends an Event to the object, (synchronously) invoking the affected event listeners in the appropriate order.

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The removeEventListener() method of the EventTarget interface removes an event listener previously registered with EventTarget.addEventListener() from the target.

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