Implement javascript minimalist approach in Node.js

A simple example for javascript object-oriented programming.

Include:

• public / private variables or functions
• static variables or functions
• inheritance (not multiple, no interface)

Run:

node app.js

Inheritance:

• people
  • developer
    • frontend

ref:

• http://www.gabordemooij.com/articles/jsoop.html
• http://www.ruanyifeng.com/blog/2012/07/three_ways_to_define_a_javascript_class.html