JSFiddle - React, Tailwind, and code Playground

JavaScript

var Main = function() {
	this.object1 = {};
  this.object1.prop = 5;
  
  var self = this;
  this.object2 = {};
  this.object2.write = function() {
    //вывести свойство prop объекта object1
    return self.object1.prop;
  }
}

var main = new Main();
console.log(main.object2.write());