Ruby: how to push to a hash inside an array on a CSV -

i m new ruby. have 2 csv files, m using 'csv' library. can arrays csvs dont know how push hash inside first csv.

i these 2 arrays csvs:

csv1 = [1,2,{3 => :a},4] csv2 = [5,6,{7 => :b},8] 

and want first csv file this:

[1,2,{3 => :a, 7 => :b},4] 

this 1 way.

arr1 = [1,2,{ 3 => 'a' },4] arr2 = [5,6,{ 7 => 'b' },8]  arr1.map |e|   case e   when hash e.merge(arr2.select { |e| e.is_a? hash }.first)   else e   end end   #=> [1, 2, {3=>"a", 7=>"b"}, 4]  

when

e #=> { 3 => 'a' }  h2 = arr2.select { |e| e.is_a? hash }.first   #=> [{ 7 => 'b' }].first   #    { 7 => 'b' } e.merge(arr2.select { |e| e.is_a? hash }.first) e.merge(h2)   #=> { 3 => 'a' }.merge({ 7 => 'b' })   #=> {3=>"a", 7=>"b"}