About Symbols | Koans 

* Symbols as strings are not RubyContants 
  i.e :"yo yo" does not include?(RubyConstant)

* Symbols can be built using interpolation

* A Ruby constant is like a variable, except that 
  its value is supposed to remain constant for the
  duration of the program.

* In object-oriented and functional programming, 
  an immutable object is an object whose state 
  cannot be modified after it is created.

[#54145589]
Merge pull request #8 from nhic0tine/54145589_about_symbols

About Symbols | Koans 

[Delivers #54145589]
About Regular Expressions

* Regular expression are ways to create patters in
  order to modify or identify a string

[#54145593]
Merge pull request #9 from nhic0tine/54145593_about_regular_expressions

About Regular Expressions

[Delivers #54145593]
About Methods

* Sides not commented in code 
* Explicit - return 
* Method arguments, parameters

[#54145597]
Merge pull request #10 from nhic0tine/54145597_about_methods

About Methods

[Delivers #54145597]
About Keyword Arguments 

* defining your arguments using
  symbols 
* your argument array needs to be
  symbols or the method will fail 
  and default to argument error
  of 0 to 1 (the optional 
  argument) 


[#54145601]