I have an array of books aka struct Book in the Top100Model below. I also have an array of books aka struct Data as well in the ISBNModel below. Both arrays have the same number of books and have a common property isbn13 which is a string holding a number. Id like to create a third array or merge the arrays so that it contains all the properties from Book in the Top100Model but add another two properties to the Top100Model or third which copies the ‘subjects’ and ‘synopsis’ properties from the ISBNModel to this array based on the matching isbn13 values.

Top100Model below

struct Top100Model: Decodable {
  let results: Result

  private enum CodingKeys: String, CodingKey {
    case results
  }
}

struct Result: Decodable {
  let listsb: [ListB]

  private enum CodingKeys: String, CodingKey {
      case listsb = "lists"
  }
}

struct ListB: Codable {
  let books: [Book]
}

struct Book: Codable, Identifiable {
  let id = UUID()
  let author: String
  let description: String
  let isbn13: String
  let rank: Int
  let title: String
}

ISBNModel Below

struct ISBNModel: Codable {
  let total: Int
  let requested: Int
  let data: [Data]

}

struct Data: Codable {
  let synopsis: String
  let subjects: [String]
  let isbn13: String