@stringsync/vexml/dist/esm/events/topic.d.ts

MusicXML to Vexflow

import { EventListener, AnyEventMap } from './types';
export type Subscription<T extends AnyEventMap, N extends keyof T> = {
    id: number;
    name: N;
    listener: EventListener<T[N]>;
};
/** Class that tracks pubsub subscribers. */
export declare class Topic<T extends AnyEventMap> {
    private id;
    private subscriptions;
    hasSubscribers<N extends keyof T>(name: N): boolean;
    publish<N extends keyof T>(name: N, payload: T[N]): void;
    subscribe<N extends keyof T>(name: N, listener: EventListener<T[N]>): number;
    unsubscribe(id: number): Subscription<T, keyof T> | null;
    unsubscribeAll(): void;
}