class FalseClass

def as_json(options = nil) #:nodoc:

:nodoc: 
def as_json(options = nil) #:nodoc:
  self
end

def blank?

Returns:
  • (true) - 
def blank?
  true
end

def duplicable?

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

+false+ is not duplicable: 
def duplicable?
  false
end

def to_param

Returns +self+. 
def to_param
  self
end