Class EventEmitter<T>

Lightweight event broadcaster.

While this class' primary use in the library is for sending log events to registered listeners, it is defined to be generic, and can technically emit any type of value.

Feel free to use this for non-logging things since javascript has no built-in observer pattern...

Type Parameters

T

Hierarchy

EventEmitter

Index

Constructors

Accessors

Methods

addListener emit hasListener removeAllListeners removeListener

Constructors

constructor

new EventEmitter<T>(): EventEmitter<T>
Type Parameters
- T
Returns EventEmitter<T>

Accessors

listenerCount

get listenerCount(): number
Returns number
- Defined in core/event-emitter.ts:21

Methods

addListener

addListener<R>(listener: EventEmitterDelegate<R>): EventEmitter<T>
Type Parameters
- R = T
Parameters
- listener: EventEmitterDelegate<R>
Returns EventEmitter<T>
- Defined in core/event-emitter.ts:34

emit

emit<R>(value: R): EventEmitter<T>
Type Parameters
- R = T
Parameters
- value: R
Returns EventEmitter<T>
- Defined in core/event-emitter.ts:25

hasListener

hasListener<R>(listener: EventEmitterDelegate<R>): boolean
Type Parameters
- R = T
Parameters
- listener: EventEmitterDelegate<R>
Returns boolean
- Defined in core/event-emitter.ts:30

removeAllListeners

removeAllListeners(): EventEmitter<T>
Returns EventEmitter<T>
- Defined in core/event-emitter.ts:46

removeListener

removeListener<R>(listener: EventEmitterDelegate<R>): EventEmitter<T>
Type Parameters
- R = T
Parameters
- listener: EventEmitterDelegate<R>
Returns EventEmitter<T>
- Defined in core/event-emitter.ts:40

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