how to make a gameobject face the mouse code example

Example: how to make a gameobject face the mouse

void Update () {         Vector3 mouseScreen = Input.mousePosition;         Vector3 mouse = Camera.main.ScreenToWorldPoint(mouseScreen);          transform.rotation = Quaternion.Euler(0, 0, Mathf.Atan2(mouse.y, mouse.x) * Mathf.Rad2Deg - 90); }