Evented

Methods mixed in to other classes for event capabilities.

Extended by

listens(type: string): boolean

Returns a true if this instance of Evented or any forwardeed instances of Evented have a listener for the specified type.

Parameter	Type	Description
`type`	`string`	The event type

boolean

true if there is at least one registered listener for specified event type, false otherwise

off(type: string, listener: Listener): Evented

Removes a previously registered event listener.

Parameter	Type	Description
`type`	`string`	The event type to remove listeners for.
`listener`	`Listener`	The listener function to remove.

on(type: string, listener: Listener): Subscription

Adds a listener to a specified event type.

Parameter	Type	Description
`type`	`string`	The event type to add a listen for.
`listener`	`Listener`	The function to be called when the event is fired. The listener function is called with the data object passed to `fire`, extended with `target` and `type` properties.

once(type: string, listener?: Listener): Promise<any> | Evented

Adds a listener that will be called only once to a specified event type.

The listener will be called first time the event fires after the listener is registered.

Parameter	Type	Description
`type`	`string`	The event type to listen for.
`listener`?	`Listener`	The function to be called when the event is fired the first time.

Promise<any> | Evented

this or a promise if a listener is not provided

setEventedParent(parent?: Evented, data?: any): Evented

Bubble all events fired by this instance of Evented to this parent instance of Evented.

Parameter	Type
`parent`?	`Evented`
`data`?	`any`