Track GameObject's rotation

I need a simple script that will track the current rotation of a GameObject.

function Update(){
rotationValue = transform.rotation;
}

The end.

should the variable rotationValue be vector3? i am getting a error can’t convert quaternion to vector3

If you want to see the rotation as a Quaternion:

using UnityEngine;

public class Example : MonoBehaviour {

    public Quaternion rotationValue = Quaternion.identity;

    void Update(){
        rotationValue = transform.rotation;
    }
}

If you want to see the rotation as a Vector3:

using UnityEngine;

public class Example : MonoBehaviour {

    public Vector3 rotationValue = Vector3.zero;

    void Update(){
        rotationValue = transform.eulerAngles;
    }
}

These are both in C# btw.