Object

TODO

• Everything in Ruby is an object—even methods, classes, and booleans
• In Ruby, everything is an object.
• Every bit of information and code can be given their own properties and actions.

5.times { print "We *love* Ruby -- it's outrageous!" }

• In many languages, numbers and other primitive types are not objects.
• Ruby follows the influence of the Smalltalk language by giving methods and instance variables to all of its types.
• This eases one’s use of Ruby, since rules applying to objects apply to all of Ruby.

Class is a object:

[99] pry(main)> class Animal

[99] pry(main)* end

=> nil

[100] pry(main)> Animal.is_a? Object

=> true

[101] pry(main)> Animal.ancestors

=> [Animal, Object, PP::ObjectMixin, Kernel, BasicObject]