Destroying Component

private static void buffer()

    {

        gMenue = GameObject.Find("InterfaceBuffer").AddComponent<Menue>().GetComponent<Menue>();

    }

    private static void clearBuffer()

    {

        Destroy(gMenue);

    }

I got this code (snippet from a class), and I just want to know, whether this only destroys the "Menue" component of the GameObject tagged as "InterfaceBuffer".

Thank you very much.

Yup, just the component itself

If you want to destroy the gameobject and everything on it, you'd want to destroy gMenue.gameObject

One small thing - AddComponent already returns a reference to your script, no need for the GetComponent too