JSON data structure comparison

compare_json_structures.js

// traditional JSON hashmap
{
  "data": [
    {"batch_id": "abc",
     "records": [
       {"subject_id": "111", "features": [1,2,3,4]},
       {"subject_id": "222", "features": [1,2,3,4]},
       {"subject_id": "333", "features": [1,2,3,4]},
       {"subject_id": "444", "features": [1,2,3,4]},
       {"subject_id": "555", "features": [1,2,3,4]}
     ]
    }
  ]
}

// compare to demo app structure
{
  "batch_id": "abc",
  "subjects": ["111","222","333","444","555"],
  "features: [[1,2,3,4],[1,2,3,4],[1,2,3,4],[1,2,3,4]]
}