CSV::Table#headers

table.headers → array_of_headers

# File tmp/rubies/ruby-3.3.0/lib/csv/table.rb, line 360
def headers
  if @table.empty?
    @headers.dup
  else
    @table.first.headers
  end
end

Returns a new Array containing the String headers for the table.

If the table is not empty, returns the headers from the first row:

Example

rows = [
  CSV::Row.new(['Foo', 'Bar'], []),
  CSV::Row.new(['FOO', 'BAR'], []),
  CSV::Row.new(['foo', 'bar'], []),
]
table  = CSV::Table.new(rows)
table.headers # => ["Foo", "Bar"]
table.delete(0)
table.headers # => ["FOO", "BAR"]
table.delete(0)
table.headers # => ["foo", "bar"]

If the table is empty, returns a copy of the headers in the table itself:

Example

table.delete(0)
table.headers # => ["Foo", "Bar"]

See also #each #inspect #dig #push also in 3.2 · 3.1 · 3.0

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