Option force_quotes

Specifies the boolean that determines whether each output field is to be double-quoted.

Default value:

CSV::DEFAULT_OPTIONS.fetch(:force_quotes) # => false

For examples in this section:

ary = ['foo', 0, nil]

Using the default, false:

str = CSV.generate_line(ary)
str # => "foo,0,\n"

Using true:

str = CSV.generate_line(ary, force_quotes: true)
str # => "\"foo\",\"0\",\"\"\n"