Create EventEmitter of a healthy mind

[tshemsedinov]

type Listener = (...args: unknown[]) => void;
type EventName = string | symbol;

export class EventEmitter {
  emit(eventName: EventName, ...args: unknown[]): Promise<void>;
  on(eventName: EventName, listener: Listener): void;
  once(eventName: EventName, listener: Listener): void;
  off(eventName: EventName, listener?: Listener): void;
  toPromise(eventName: EventName): Promise<unknown>;
  toIterator(eventName: EventName): Iterator<unknown>;
  clear(eventName?: EventName): void;
  listeners(eventName?: EventName): Listener[];
  listenerCount(eventName?: EventName): number;
  eventNames(): EventName[];
}

[GoodLuckMister]

Hi ! Could I complete this issue ?

[tshemsedinov]

Yes, this is just a draft, it might be useful, but it needs some work, maybe the contracts are not convenient, maybe the implementation can be optimized, more tests, use cases, docs, etc.

[tshemsedinov]

@GoodLuckMister You can do that