Methods
A
D
Instance Public methods
as_json(options = nil)

Source: show 

# File activesupport/lib/active_support/json/encoding.rb, line 184
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 

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