如何使用swift中的textfield对两个数组进行排序并将其添加到第三个数组中

import UIKit

class ViewController: UIViewController {
    
    var array1 = [1, 3, 5, 7, 9]
    var array2 = [2, 4, 6, 8, 10]
    var sortedArray = [Int]()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let textField = UITextField(frame: CGRect(x: 50, y: 50, width: 200, height: 30))
        textField.borderStyle = .roundedRect
        textField.placeholder = "Enter a number"
        textField.addTarget(self, action: #selector(textFieldDidChange(_:)), for: .editingChanged)
        view.addSubview(textField)
    }
    
    @objc func textFieldDidChange(_ textField: UITextField) {
        if let number = Int(textField.text ?? "") {
            sortedArray = mergeAndSortArrays(array1, array2)
            sortedArray.append(number)
            print(sortedArray)
        }
    }
    
    func mergeAndSortArrays(_ array1: [Int], _ array2: [Int]) -> [Int] {
        var mergedArray = array1 + array2
        mergedArray.sort()
        return mergedArray
    }
}