Javascript OOP

js-oop.js

(function () {
  this.OOP = function(options){
    this.constructor.staticVariable++;
    this.constructor.staticMethod();

    var privateVariable = Math.random();
    function privateMethod() {
      console.log('privateMethod:');
      console.log(privateVariable);
      console.log(privateMethodStub());
      console.log(this.publicVariableInternal);
      console.log(this.publicMethodInternalStub());
      console.log(this);
    }
    function privateMethodStub() {
      console.log('publicMethodInternalStub');
    }

    this.publicVariableInternal = Math.random();
    this.publicMethodInternal = function () {
      console.log('publicVariableInternal:');
      console.log(privateVariable);
      console.log(privateMethod.call(this));
      console.log(this.publicVariableInternal);
      console.log(this.publicMethodInternalStub());
      console.log(this);
    }
    this.publicMethodInternalStub = function() {
      console.log('publicMethodInternalStub');
    }

    console.log('Options:');
    console.log(options);
    console.log(this);
  }

  OOP.prototype.publicMethodExternal = function () {
    console.log('publicMethodExternal:');
    console.log(this);
//    console.log(privateVariable);
//    console.log(privateMethod());
    console.log(this.publicVariableExternal);
    console.log(this.publicVariableInternal);
    console.log(this);
  }
  OOP.prototype.publicVariableExternal = Math.random();

  OOP.staticVariable = 0;
  OOP.staticMethod = function () {
    console.log('staticMethod:');
    console.log(this.staticVariable);
    console.log(this.staticMethodStub());
    console.log(this);
  }
  OOP.staticMethodStub = function () {
    console.log('staticMethodStub:');
  }
}).call(this);

oop = new OOP({test: 1});
oop.publicMethodInternal();
oop.publicMethodExternal();

console.log(OOP.staticMethod());
console.log(OOP.staticVariable);