JSFiddle - React, Tailwind, and code Playground

JavaScript

var A=(function(){

  function Person(name){
    this.name=name;
  }
  
  var m=function(){
    return"Hello "+this.name;
  };

  Person.prototype.getGreeting=m;

  return Person;
})();
        
var somePerson = new A('world');
console.log(somePerson.getGreeting());