Accessing Script on instated prefab

I have a C# script in unity which is instantiating a prefab. (This works fine).
Once This happens I need to access an array, stored on a script, on that prefab.

public static void roomBuilder(Vector3 loc)
	{
		if(roomcount < 20)
		{
			GameObject newRoom;
			int roomNum = (int)(Random.Range(0, staticRoomArray.Length));
			newRoom = Instantiate (staticRoomArray[0]) as GameObject;
			Component value = newRoom.GetComponent<Room_adder>();
			Debug.Log(value.doorArray[0]);
			newRoom.transform.position = (newRoom.transform.position) + loc;
		}
	}

This is the function Instantiating the prefab.

The instantiated prefab has a script with a “public GameObject doorArray;”.

Any thoughts on how to make this work?

Get access to the script of newRoom.

TheScript script = newRoom.GetComponent<TheScript>();

Then use this to access the public field.

script.doorArray