JensThanx

function MyClass( paramA ){
   propertyR = "this property is read-only";
   
   this.getPropertyR = function(){
      return propertyR;
   };
   
   function privateMethod() {
      return "privateMethod() is a private method";
   }

JensThanx

function MyClass( paramA ) {
   // public member
   this.member = paramA;
   
   // private member, only accessible from the inside
   value1 = 3;
   
   // very private member, only accessible from private and priviliged actors
   var value2 = 6;