Recursive free way to traverse through ALL the child game objects of a parent

Traverse.cs

    public static void Traverse(GameObject gameObject, Action<GameObject> action)
    {
        if (gameObject == null)
        {
            throw new ArgumentNullException("gameObject");
        }

        if (action == null)
        {
            throw new ArgumentNullException("action");
        }

        Stack<Transform> stack = new Stack<Transform>();
        stack.Push(gameObject.transform);

        while (stack.Count > 0)
        {
            Transform node = stack.Pop();

            action(node.gameObject);

            for (int i = 0; i < node.childCount; ++i)
            {
                stack.Push(node.GetChild(i));
            }
        }
    }