ndoejs, function, object

• 
  Properties of an object are looked up from two places:
  1. the object itself (Obj.foo), and
  2. if the property does not exist, on the prototype of the object (Obj.prototype.foo).

• 
  New objects are created using a constructor, which is a regular function invoked using new
• 
  The new constructor call (e.g. new Foo()):
  1. creates a new object,
  2. sets the prototype of that object to Foo.prototype and
  3. passes that as this to the constructor.