How to return the attribute value from an array in Ruby?-CodePudding

I have a function which returns me a Array Objects, and I want to return the ID in an array (as I can have many objects), of which each object has one. Here's what I have tried.

 iban_obj.map{ |id| id },
 iban_obj.select(&:id)

Here is my iban_obj:

    [{"url"=>"xxxx.json",
  "id"=>360081391060,
  "title"=>"Test Macro",
  "active"=>true,
  "updated_at"=>"2021-11-22T13:15:06Z",
  "created_at"=>"2021-11-19T16:52:00Z",
  "position"=>10002,
  "description"=>"{{ iban }} {{ phone_number }} {{ email }}",
  "actions"=>
   [{"field"=>"comment_value_html",
     "value"=>
  "restriction"=>nil}]

Desired Result:

id_array = [360081391060]

CodePudding user response：

id_array = iban_obj.map { |obj| obj['id'] }

When you call #map each whole object will be passed in. From there you have to just select the proper key like you would from any hash.

CodePudding user response：

You can use dig method too..

banking_customer.map{ |customer| customer.dig('id') }