EventEmitter

class EventEmitter<T extends Record<string, any>> {

private callbacks;

protected emit<EventName extends StringKeyOf<T>>(event: EventName, ...args: CallbackType<T, EventName>): this;

protected removeAllListeners(): void;

off<EventName extends StringKeyOf<T>>(event: EventName, fn?: CallbackFunction<T, EventName>): this;

on<EventName extends StringKeyOf<T>>(event: EventName, fn: CallbackFunction<T, EventName>): this;

}

§Type Parameters

T extends Record<string, any>

callbacks

emit<EventName extends StringKeyOf<T>>(event: EventName, ...args: CallbackType<T, EventName>): this protected

removeAllListeners(): void protected

off<EventName extends StringKeyOf<T>>(event: EventName, fn?: CallbackFunction<T, EventName>): this

on<EventName extends StringKeyOf<T>>(event: EventName, fn: CallbackFunction<T, EventName>): this