JSFiddle - React, Tailwind, and code Playground

JavaScript

function Bingo(name) {
    var self = this;
    this.myName = name;
    
    this.shout = function() {
        alert( getName.apply(this) );
    }
    
    function getName() {
      return this.myName;
    }
};
        
var boo = new Bingo('Ejik');

boo.shout();