Need help converting Javascript to C#

 var Target : Transform;
 var lookAtDistance = 25.0;
 var attackRange = 15.0;
 var moveSpeed = 5.0;
 var Damping = 6.0;
 private var spawnPos : Vector3;
 private var spawnRot : Quaternion;
 public Transform[] patrolPoints;
 
 function Start ()
 {
     spawnPos = transform.position;
     spawnRot = transform.rotation;
 }
 
 function Update ()
 {
     Distance = Vector3.Distance(Target.position, transform.position);
     
     if (Distance < lookAtDistance)
     {
         renderer.material.color = Color.yellow;
         lookAt();
     }
     
     if (Distance > lookAtDistance)
     {
         renderer.material.color = Color.green;
         patrol();
     }
     
     if (Distance < attackRange)
     {
         renderer.material.color = Color.red;
         attack ();
     }
 }
 
 function lookAt ()
 {
     var rotation = Quaternion.LookRotation(Target.position - transform.position);
     transform.rotation = Quaternion.Slerp(transform.rotation, rotation, Time.deltaTime * Damping);
 }
 
 function attack ()
 {
     transform.Translate(Vector3.forward * moveSpeed * Time.deltaTime);
 }
 
 function patrol ()
 {
     transform.position = spawnPos;
     transform.rotation = spawnRot;
 }

Hi i was wondering how much of this code would i have to change to make it into C#. i need this code in C# for technical reasons with my game, but it would be greatly appreciated if anyone could point me in the right direction. i tried to go lone walk but had trouble making my variable work in C#, sorry im a complete noob at C# so any help would be greatly appreciated. thanks.