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: /opt/alt/ruby34/share/gems/gems/csv-3.3.2/doc/csv/options/generating/

files >> //opt/alt/ruby34/share/gems/gems/csv-3.3.2/doc/csv/options/generating/write_headers.rdoc

 ====== Option +write_headers+

Specifies the boolean that determines whether a header row is included in the output;
ignored if there are no headers.

Default value:
  CSV::DEFAULT_OPTIONS.fetch(:write_headers) # => nil

Without +write_headers+:
  file_path = 't.csv'
  CSV.open(file_path,'w',
      :headers => ['Name','Value']
    ) do |csv|
      csv << ['foo', '0']
  end
  CSV.open(file_path) do |csv|
    csv.shift
  end # => ["foo", "0"]

With +write_headers+":
  CSV.open(file_path,'w',
      :write_headers => true,
      :headers => ['Name','Value']
    ) do |csv|
      csv << ['foo', '0']
  end
  CSV.open(file_path) do |csv|
    csv.shift
  end # => ["Name", "Value"]

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