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  1. Hoge = nil
  2.  
  3. class << Hoge
  4.   def bar
  5.     'bar'
  6.   end
  7. end
  8.  
  9. puts Hoge.bar
Success #stdin #stdout 0s 28984KB
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stdin
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Standard input is empty
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bar
https://ideone.com/2VPs6w
language:
Ruby (ruby 2.5.5)
created:
6 years ago
visibility:
public

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