struct Records {

let title: String
let source: String
var length: String
let recordUrl: String
let username: String

init(dictionary: [String: Any]) {
    self.title = dictionary["title"] as? String ?? ""
    self.source = dictionary["source"] as? String ?? ""
    self.length = dictionary["length"] as? String ?? ""
    self.recordUrl = dictionary["recordUrl"] as? String ?? ""
    self.username = dictionary["username"] as? String ?? ""
}
}

var records = [Records]()

func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
   guard let uid = Auth.auth().currentUser?.uid else { return }
    if (editingStyle == .delete) {
        records.remove(at: indexPath.item)
        tableView.deleteRows(at: [indexPath], with: .fade)
       Database.database().reference().child("users").child(uid).child("records").removeValue()
    }
    }