No-Library (pure JS), HTML, CSS, JavaScript
jQuery 1.8.3, HTML, CSS, JavaScript
jQuery 1.9.1, HTML, CSS, JavaScript
"is a" relationship ex: an apple is a fruit, an employee is a person, and a piano is an instrument.
IIFE
To prevent pollution of the global namespace, create an empty object and assign it to a variable. you can then add members to it.
How to use getter to access private functions.
Defining a method prototype