ModulePattern.js

var myNamespace = (function () {
  
  var myPrivateVar, myPrivateMethod;
  
  //Private counter variable
  myPrivateVar = 0;
  
  //Private function which logs any arguments
  myPrivateMethod = function( foo ) {
    console.log( foo );
  };
  
  return {
    
    //Public variable
    myPublicVar: "foo",
    
    //Public function utilizing privates
    myPublicFunction: function( bar ) {
      
      //Increment private counter
      myPrivateVar++;
      
      //call our private methos using bar
      myPrivateMethod( bar );
    }
  };
})();