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read_with_new.rb

This Ruby code snippet demonstrates reading a CSV file (file.csv) and printing each header-value pair from each row. It uses the CSV library to parse the file, assuming the first row contains headers. The code iterates through each row and then through each header-value pair in that row, printing them to the console, followed by a newline after each row’s output.

Ruby code snippet

require 'csv'
#=> true

File.open("input/csv/file.csv", "r") do |f|
  csv = CSV.new(f, headers: true)
  csv.each do |line|
      line.each do |header, val|
          p [header, val]
      end
      puts
  end
end
["key", "key1"]
["value", "value1"]

["key", "key2"]
["value", "value2"]

["key", "key3"]
["value", "value3"]

#=> nil

Executed with Ruby 3.4.5.