Solid Principles

The SOLID principals are five basic principles of object oriented programming and design. These principles help engineers write maintainable code. We are going to take a... »

Duck Typing

Duck typing is an object oriented design technique that lets us determine an object by using its properties and its methods. We are not concerned with... »

Creating a DSL

Rake, RSpec, and ActiveRecord are all examples of a Domain Specific Language(DSL). There are Internal DSLs, which was will explore first, and then External DSLs, which... »