move camera with player unity code example

Example 1: 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;

Example 2: how to code a move camera in unity

void Update()
 {
     if(Input.GetKey(KeyCode.RightArrow))
     {
         transform.Translate(new Vector3(speed * Time.deltaTime,0,0));
     }
     if(Input.GetKey(KeyCode.LeftArrow))
     {
         transform.Translate(new Vector3(-speed * Time.deltaTime,0,0));
     }
     if(Input.GetKey(KeyCode.DownArrow))
     {
         transform.Translate(new Vector3(0,-speed * Time.deltaTime,0));
     }
     if(Input.GetKey(KeyCode.UpArrow))
     {
         transform.Translate(new Vector3(0,speed * Time.deltaTime,0));
     }
 }