// by Dmitry Soshnikov <dmitry.soshnikov@gmail.ru>
// MIT Style License 

*Classification of classes:*

=============================================================================
                |     Dynamic                   |    Static
-----------------------------------------------------------------------------
                |                               |
                | Coffee, Python, Ruby,         |   SmallTalk, built-in
  First-class   | JavaScript (w/o sugar), etc.  |   classes of Python, etc.
                |                               |
-----------------------------------------------------------------------------
  Second-class  | PHP, etc.                     |   Java, C++, etc.
-----------------------------------------------------------------------------

P.S.:

A *first-class* value -- the value which may participate as normal date. E.g. can be created literally
at runtime, passed as an argument, or returned as a values.

2. A *second-class* value (or a *first-order* value) -- the value which is not the first-class value.

*Note*, a second-class values can be used partially as first-class values, e.g. passed as arguments
(an example -- pointers to functions in C/C++). So the most important difference of the first-class
value is the ability to be created at runtime and in particular cases be used as objects.
Regarding functions, "first-class-ness" is also related with static scope, i.e. the ability of
functions to be *closures*.