subscr.js

// user
const User = (age, name) => (msg) => {
	const state = [age, name];

	return msg(state)
}

const getAge = (arr) => arr[0];
const getName = (arr) => arr[1];
const getInfo = (arr) => `${arr[0]} ${arr[1]}`;

// logger
const Logger = (info) => (msg) => {
	return (payload) => msg(info, payload);
}

// bus
const Bus = (subscriptions) => (msg) => {
  return msg(subscriptions);
}
const subscribe = (subscriptions) => (type, func) => {
	return Bus([...subscriptions, [type, func]]);
}
const dispatch = (subscriptions) => (type, payload) => {
  const func = subscriptions.find(subscr => subscr[0] === type)[1]
  return func(payload);
}

const logger1 = Logger("Loggging age:")(console.log);
const logger2 = Logger("Loggging name:")(console.log);

let bus = Bus([]);
bus = bus(subscribe)("log1", logger1);
bus = bus(subscribe)("log2", logger2);


const vasya = User(20, "vasya")
bus(dispatch)("log1", vasya(getAge));
bus(dispatch)("log2", vasya(getName));