Assignment - Group people data based on their cities

Problem Statement: For the given array of people data, parse the data in to the form grouped by their cities. The output shall have count of the people,list of people for each city. (Please check sample output mentioned for reference) .

Sample Input

[
    {
      "_id": "5f322e9e0b033f228afd008a",
      "name": "Brown Lara",
      "gender": "male",
      "email": "brownlara@zolar.com",
      "phone": "+91 9411359806",
      "city": "Hyderabad"
    },
    {
      "_id": "5f322e9e90a973778cc279b2",
      "name": "Molina Barker",
      "gender": "male",
      "email": "molinabarker@zolar.com",
      "phone": "+91 8473520620",
      "city": "Bengaluru"
    },
    {
      "_id": "5f322e9ef93188370ee080e7",
      "name": "Loretta Mcintyre",
      "gender": "female",
      "email": "lorettamcintyre@zolar.com",
      "phone": "+91 1993560484",
      "city": "Hyderabad"
    },
    {
      "_id": "5f322e9e2c7c9b2c77a3ff73",
      "name": "Sherman Avila",
      "gender": "male",
      "email": "shermanavila@zolar.com",
      "phone": "+91 1825229684",
      "city": "Pune"
    },
    {
      "_id": "5f322e9e9a6b98a902c2b04d",
      "name": "Claire Molina",
      "gender": "female",
      "email": "clairemolina@zolar.com",
      "phone": "+91 3679340671",
      "city": "Bengaluru"
    }
  ]

Sample Output

[
    {
        "count": 2,
        "city": "Hyderabad",
        "people": [{"_id": "5f322e9e0b033f228afd008a", ...}, {"_id": "5f322e9ef93188370ee080e7", ...}]
    },
    {
        "count": 2,
        "city": "Bengaluru",
        "people": [{"_id": "5f322e9e90a973778cc279b2", ...}, {"_id": "5f322e9e9a6b98a902c2b04d", ...}],
    },
    {
        "count": 1,
        "city": "Pune",
        "people": [{"_id": "5f322e9e2c7c9b2c77a3ff73", ...}]
    }
  ]

Solution provided shall follow according to the guidelines.

unifystockx / code_compete

Assignment - Group people data based on their cities #8