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  1. class Foo
  2.   def self.test
  3.     p :test
  4.   end
  5. end
  6.  
  7. a = []
  8.  
  9. Foo.define_singleton_method(:test){ a << :foo }
  10. Foo.test
  11. Foo.test
  12.  
  13. p a
Success #stdin #stdout 0s 4716KB
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stdin
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Standard input is empty
stdout
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[:foo, :foo]
https://ideone.com/bgs81
language:
Ruby (ruby 2.5.5)
created:
12 years ago
visibility:
secret

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