Unity3D: Best way to add listener programmatically for Button onClick

MyButton.cs

using UnityEngine;

public class MyButton {
	
	public Button[] buttons;
	
	private void Start() {
		for (int i = 0; i < buttons.Length; i++) {
			Button button = buttons[i];
			var index = i;
			button.onClick.RemoveAllListeners();
			button.onClick.AddListener(() => OnClick(index));
		}
	}
	
	private void OnClick(int index) {
		Debug.Log("You click button at index: " + index);
	}

}

that' s so useful 👍

Thanks :)