A Unity UI Button performing another buttons with click on it

MasterButton.cs

using UnityEngine;
using UnityEngine.UI;

public class MasterButton : MonoBehaviour
{
    public Button primaryButton;
    public Button[] targetButtons;

    void Start()
    {
        primaryButton.onClick.AddListener( () => {

            foreach (var button in targetButtons)
            {
                button.onClick.Invoke();
            }

        });
    }
}