Methods
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D
Instance Public methods
as_json(options = nil)

Source: show | on GitHub 

     # File activesupport/lib/active_support/json/encoding.rb, line 181
181:   def as_json(options = nil) to_s end
duplicable?()

Symbols are not duplicable: 

  :my_symbol.duplicable? # => false
  :my_symbol.dup         # => TypeError: can't dup Symbol

Source: show | on GitHub 

    # File activesupport/lib/active_support/core_ext/object/duplicable.rb, line 68
68:   def duplicable?
69:     false
70:   end