JSFiddle - React, Tailwind, and code Playground

JavaScript

function Article (){
    this.created = new Date();
  //  Article.counter++;
    Article.last = this.created;
};
//Article.counter = 0;

Article.prototype.showStats = function(){
    
    return ( this.counter + " articles created. Last article " + this.last);
};
var art = new Article();


console.log(art.showStats()());