eventemitter3.d.ts

declare module 'eventemitter3' {
	namespace EventEmitter3 {
		type Listener<Data = any> = (...args: Data[]) => void;
		interface Event<Data = any> {
			fn: Listener<Data>;
			context: any;
			once: boolean;
		}
	}

	class EventEmitter3<Names extends string = string, Data = any> {
		static prefixed: string | boolean;
		_events: { [name: string]: EventEmitter3.Event<Data> | EventEmitter3.Event<Data>[] };
		_eventsCount: number;
		eventNames<Name extends Names>(): Name[];
		listeners<Name extends Names>(name: Name): EventEmitter3.Listener<Data>[];
		listenerCount<Name extends Names>(name: Name): number;
		emit<Name extends Names>(name: Name, ...args: Data[]): void;
		on<Name extends Names>(
			name: Name,
			listener: EventEmitter3.Listener<Data>,
			context?: any,
		): this;
		addListener<Name extends Names>(
			name: Name,
			listener: EventEmitter3.Listener<Data>,
			context?: any,
		): this;
		once<Name extends Names>(
			name: Name,
			listener: EventEmitter3.Listener<Data>,
			context?: any,
		): this;
		removeListener<Name extends Names>(
			name: Name,
			listener?: EventEmitter3.Listener<Data>,
			context?: any,
			once?: boolean,
		): this;
		off<Name extends Names>(
			name: Name,
			listener?: EventEmitter3.Listener<Data>,
			context?: any,
			once?: boolean,
		): this;
		removeAllListeners<Name extends Names>(name?: Name): this;
	}

	export = EventEmitter3;
}