JSFiddle - React, Tailwind, and code Playground

JavaScript

var $ = {}; // some global

var Master = 
    {
        property: 'Property',
        
        Func: function()
        {
            console.log('I am Func inside Master');
        },
        
        PassToGlobal: function()
        {
            $.master = this;
        }
    };

Master.PassToGlobal();

var Slave =
    {
        Master: $.master,
        
        ShowFunc: function()
        {
            console.log(JSON.stringify(this.Master.Func));
            this.Master.Func();
        }
    }

Slave.ShowFunc();