Created
September 29, 2013 14:44
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class MyClass | |
@@number_of_objects = 0 | |
def self.how_many_objects? | |
@@number_of_objects | |
end | |
def initialize | |
@@number_of_objects = @@number_of_objects.next # 'number_of_objects' asscesible to object instances of the class. (i.e. initialize is an instance method..) | |
end | |
def foo | |
end | |
end | |
class BetterMyClass < MyClass | |
def bar | |
end | |
end | |
a = MyClass.new | |
b = BetterMyClass.new | |
p MyClass.how_many_objects? #=> 2 | |
p BetterMyClass.how_many_objects? #=> 2 |
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