Example of the Prototypal 'Class' Pattern in JavaScript

prototypal-class.js

var Example = function() {
  var example = Object.create(exampleMethods);
  example.extraProp1 = "Example Property Value";
  return example;
};

var exampleMethods = {
  exampleGet: function() {
    return this.extraProp1;
  },
  exampleSet: function(value) {
    this.extraProp1 = value;
  }
};