Adds a new handler for the type
event. Any given listener
is added only once per type
and per capture
option value.
If the once
option is true, the listener
is removed after the next time a type
event is dispatched.
The capture
option is not used by Node.js in any functional way other than tracking registered event listeners per the EventTarget
specification.
Specifically, the capture
option is used as part of the key when registering a listener
.
Any individual listener
may be added once with capture = false
, and once with capture = true
.
Optional
options: boolean | AddEventListenerOptionsDispatches a synthetic event event to target and returns true if either event's cancelable attribute value is false or its preventDefault() method was not invoked, and false otherwise.
Removes the event listener in target's event listener list with the same type, callback, and options.
Optional
options: boolean | EventListenerOptions
EventTarget is a DOM interface implemented by objects that can receive events and may have listeners for them.