OO principles - The Open / Closed Principle

Dec. 22, 2015

Three Approaches to Achieve OCP

1. Parameters (Procedural Programming)
2. Inheritance / Template Method Pattern
3. Composition / Strategy Pattern

1. Parameters (Procedure Programming)
Allow client to control behavior specifics via a parameter
Combined with delegates/lambad, can be very powerful approach

2. Inheritance / Template Method Pattern
Child types override behavior of a base class (or interface)

3. Composition / Strategy Pattern
Client code depends on abstraction
Provides a "plug in" model
Implementations utilize inheritance; Client utilizes Composition

Read the blog:
http://code.tutsplus.com/tutorials/solid-part-2-the-openclosed-principle--net-36600
http://www.objectmentor.com/resources/articles/ocp.pdf
http://stackoverflow.com/questions/59016/the-open-closed-principle

A friend told me that he subscribes
https://www.pluralsight.com/

So, Julia subscribed code school first starting this Dec. 2015, and later pluralsight.com. Two schools are different.

Video watch:

https://www.youtube.com/watch?v=MvyG_ODng3w

Code School Live: JavaScript Best Practices Q&A

https://www.youtube.com/watch?v=k9xwJoprEMY

Principles of Object Oriented Design (2 - The Open-Closed Principle) 28 minutes 

https://www.youtube.com/watch?v=qP6MroshYvM&index=8&list=PLD4GnSXHpkQ2_eKG5fKzszXs5hYcEsft7

I Learned HTML and CSS, Now What?

http://blog.codeschool.io/2014/09/30/learned-html-css-now/

http://support.pluralsight.com/knowledgebase/articles/491274-what-s-offered-at-code-school-vs-pluralsight