Simple Javascript Prototype sample, used for quick copy/paste...

PrototypeBootstrap.js

// Simple Javascript Prototype sample, used for bootstrapping classes ;)
var App = function() { 
  
  // define a custom function 'Ping()'
  App.prototype.Ping = function () {
    console.log("Pong!");
  };
  
};

// OnDocumentReady()
$(function() {
  console.clear();

  var app = new App();
  app.Ping();
});