Select filed from Array of Hashes in Ruby-CodePudding

So i have this Array of Hashes

{"id"=>50823, "code"=>"1PLAK", "name"=>"Eselente", "order"=>1}
{"id"=>74327, "code"=>"1MAGP", "name"=>"Mango", "order"=>2}
{"id"=>50366, "code"=>"1ANGC", "name"=>"Tabnie", "order"=>3}
{"id"=>76274, "code"=>"1FABD", "name"=>"Slamtab", "order"=>4}

And i want to select the field order (just one field at the same time) for comparing afterwards. What's the correct way to do it? Thanks!

CodePudding user response：

When you only want to extract the values of the orders then I would do this:

array = [
  {"id"=>50823, "code"=>"1PLAK", "name"=>"Eselente", "order"=>1},
  {"id"=>74327, "code"=>"1MAGP", "name"=>"Mango", "order"=>2},
  {"id"=>50366, "code"=>"1ANGC", "name"=>"Tabnie", "order"=>3},
  {"id"=>76274, "code"=>"1FABD", "name"=>"Slamtab", "order"=>4},
]
array.map { |hash| hash["order"] }
#=> [1, 2, 3, 4]

When you are only interested in the very first value (1 like you wrote in the comments above) then you can do:

array.first["order"] # or array[0]["order"]
#=> 1