A super dumb pub sub implementation

DumbPubSubStub.ts

    export interface PubSubCallback
    {
        (args?: any, topic?: any) : void;
    }

    interface PubSubTopicMap
    {
        [topic : string]: PubSubCallback[];
    }    
    
    class DumbPubSubStub
    {
        public static debugging: boolean = true;

        private static map : PubSubTopicMap = {};

        public static Publish(topic: any, args?: any)
        {
            if (DumbPubSubStub.debugging)
            {
                console.info(`publish: ${topic} -> `, args);
            }

            if (DumbPubSubStub.map[topic])
            {
                DumbPubSubStub.map[topic].forEach(callback => callback(args || {}, topic));
            }
        }

        public static Unsubscribe(topic: any, func: PubSubCallback): void
        {
            if (DumbPubSubStub.debugging)
            {
                console.info(`unsubscribe: ${topic}`);
                console.trace();
            }

            DumbPubSubStub.map[topic].splice(DumbPubSubStub.map[topic].indexOf(func), 1);
        }

        public static Subscribe(topic: any, callback: PubSubCallback)
        {
            if (DumbPubSubStub.debugging)
            {
                console.info(`subscribe: ${topic}`);
                console.trace();
            }

            DumbPubSubStub.map[topic] = DumbPubSubStub.map[topic] || [];

            DumbPubSubStub.map[topic].push(callback);
        }

    }