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====== Option +empty_value+ Specifies the object that is to be substituted for each field that has an empty \String. Default value: CSV::DEFAULT_OPTIONS.fetch(:empty_value) # => "" (empty string) With the default, <tt>""</tt>: CSV.parse_line('a,"",b,"",c') # => ["a", "", "b", "", "c"] With a different object: CSV.parse_line('a,"",b,"",c', empty_value: 'x') # => ["a", "x", "b", "x", "c"]