Grouping block arguments example

grouping_block_arguments_example

pscs = {
   ["Brno", "Hradecká"] => [61200,62100],
   ["Brno", "Merhautova"] => [61300,61400],
   ["Brno", "Nezamyslova"] => [61500,63600],
}

pscs.each do |(city, street), street_pscs|
  puts "#{street} in #{city} has following PSCs: #{street_pscs.join(", ")}"
end

# Output:
# Hradecká in Brno has following PSCs: 61200, 62100
# Nezamyslova in Brno has following PSCs: 61500, 63600
# Merhautova in Brno has following PSCs: 61300, 61400