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instance method

CSV::Row#has_key?

row.has_key?(header)

# File tmp/rubies/ruby-3.0.5/lib/csv/row.rb, line 200
def has_key?(header)
  !!@row.assoc(header)
end

Returns true if there is a field with the given header, false otherwise.

See also #fields #header? #field_row? #header_row? also in 3.3 · 3.2 · 3.1