Unity_Utils/Extensions/GameObjectExtensions.cs

using UnityEngine;

public static class GameObjectExtensions
{
    public static int GetNumberOfComponents(this GameObject gameObject)
    {
        return gameObject.GetComponentsInChildren<Component>().Length - 1;
    }

    public static void Show(this GameObject gameObject)
    {
        gameObject.SetActive(true);
    }

    public static void Hide(this GameObject gameObject)
    {
        gameObject.SetActive(false);
    }
}