JSFiddle - React, Tailwind, and code Playground

JavaScript

function Constructor() {
	this.value = 1;
  this.showThis = function(val) {
    document.write(val);
    document.write(this);
  }
}
const constr = new Constructor()

//Constructor.showThis('класс')
constr.showThis('объект <br/>');

function Constructor2() {
	this.value = 1;
}

Constructor2.showThis = function(val) {
    document.write(val);
    document.write(this);
  }

Constructor2.showThis('<br/>класс<br/>')

function showThis() {
document.write('<br/>функция<br/>');
document.write(this);
}
showThis()