Is there a module to create reactive methods?

Question

Node.js

We need the following module. The input is an object method and a callback. The method code is analyzed, browsers are hung on the properties used in the method, when any of these properties change, the value of the method is recalculated and the result is passed to the callback.
Example:

class People {
  constructor() {
    this.firstName = 'noname';
    this.lastName = 'Man';
  }

  name() {
    return this.firstName + ' ' + this.lastName;
  }

  hello() {
    return `Hello, ${this.name()}!`;
  }
}

const people = new People();

//вешаем обозреватель на hello
pseudo_observable(people, 'hello', (value) => console.log(value));

people.firstName = 'Cool';
//console.log => Hello, Cool Man!

Answer 1

https://www.npmjs.com/package/rxjs I think it will help you.

Answer 2

Why do React and Redux immediately come to my mind?

Answer 3

There are links to reactive libs with an explanation of the difference: https://habrahabr.ru/post/317360/