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Spell: Class Extension
# ======================
# Spell: Class Extension
# ======================
# Define class methods by mixing a module into a class’s singleton class
# (a special case of Object Extension - http://gist.github.com/534667).
class C; end
module M
def my_method
'a class method'
end
end
class << C
include M
end
C.my_method # => "a class method"
# For more information: http://www.pragprog.com/titles/ppmetr/metaprogramming-ruby
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