Options passed to the CustomEvent constructor.
CustomEvent
@:optionaloptionaldetail:Null<Any>
Custom data exposed as detail.
detail
@:optionaloptionalcomposed:Null<Bool>
Not used in Node.js. Default: false.
false
@:optionaloptionalcancelable:Null<Bool>
When true, preventDefault() can cancel the event. Default: false.
true
preventDefault()
@:optionaloptionalbubbles:Null<Bool>