how to get camera to follow player unity code example

Example 1: camera follow

public Transform player;

    public Vector3 offset;

    void LateUpdate()
    {
        transform.position = player.position + offset;
    }

Example 2: camera follow player unity smooth

// CAMERA FOLLOW PLAYER - IN FIXEDUPDATE

Vector3.SmoothDamp(cam.position, transform.position + cameraOffset, ref cameraVelocity, CameraFollowSmoothTime);
cam.position = cam.position + cameraVelocity * Time.deltaTime;