The EventTarget.addEventListener() method registers the specified listener on the EventTarget it's called on.
Dispatches an Event at the specified EventTarget, invoking the affected EventListeners in the appropriate order.
A DOMError containing the relevant error.
The event handler for the error event.
The event handler for the success event.
The state of the request.
Removes the event listener previously registered with EventTarget.addEventListener.
Returns the result of the request.
The source of the request, such as an Index or a ObjectStore.
The transaction for the request.