Retrieve JSON Object and populate array Swift

Question

I have a json object of this structure:

[
    {
        "id": 1,
        "seat_no": 6
    },
    {
        "id": 2,
        "seat_no": 27
    }
]

The main challenge is that I need to get the seat_no and add that to an int array which I will be using later on:

func getReserved() -> [Int] {
  var reservedSeatsJSON : JSON = JSON()
  var seats = Int()
  var reservedSeats = [Int]()

  for item in reservedSeatsJSON.array! {
     seats = item["seat_no"].int!
     reservedSeats.append(seats)
     self.reservedSeatsLabel.text = "Reserved(\(reservedSeatsJSON.array!.count))"
  }
  return reservedSeats      
}              

Each time I run this, the reservedSeats returns empty. The main idea here is that I need to populate an int array in a for loop and return the populated array outside the for loop

Answer 1

First check is reservedSeatsJSON json contains actual JSON?

if it contains actual JSON then do as like below. short and simple way.

func getReserved() -> [Int] {
     var reservedSeatsJSON : JSON = JSON()
     self.reservedSeatsLabel.text = "Reserved(\(reservedSeatsJSON.array.count))" 

     return reservedSeatsJSON.arrayValue.map { $0["seat_no"].intValue }
}