JSFiddle - React, Tailwind, and code Playground

JavaScript

function Person() {}

 Person.prototype.sayHello = function () {
     alert("Hello");
 };
 Person.prototype.name = "Name";

 console.log(Person.prototype) //1st console.log

 Person.prototype.surname = "Surname";

 console.log(Person.prototype); //2nd console.log