Should I use local functions inside storyboard?

Getting Started Newbie Questions
#1

If I create a function inside the createScene and I don’t declare it as local will it be removed when the scene gets removed? What if I do declare it as local?

#2

Nevermind read this and realized the error of my ways.

http://www.coronalabs.com/blog/2013/05/28/tutorial-goodbye-globals/

#3

Nevermind read this and realized the error of my ways.

http://www.coronalabs.com/blog/2013/05/28/tutorial-goodbye-globals/