How do I remove a GameObject var?

I've tried to understand this question, but am struggling....

If you want to have a variable in your script, but hide it in the Inspector, declare it as a private variable :

 private var Product : GameObject;

Now how do I remove that game object from that spot? Also, how do I add one to it? do you want to store more than one object in an array? I have no idea what you are asking, sorry.

do u want to add a gameObject via script or by the inspector? i dont get it

I thought it might sound confusing. I want fo change objects out of the inspector. I want to take a gameobject variable and change the gameobjects in it. Like lets say product1 is in var object : gameobject. I want to put product2 in place of product1

 var product1 : GameObject;
 var product2 : GameObject;
 
 function SwapObjects()
 {
     var swapper : GameObject = product1;
     product1 = product2;
     product2 = swapper;
 }

Is this what you meant? So if you call SwapObjects(); whatever is in product 1 and 2 will be swapped.

EDIT : EmptyObjects() gives null values for product1 & 2

 var product1 : GameObject;
 var product2 : GameObject;
 
 function SwapObjects()
 {
     var swapper : GameObject = product1;
     product1 = product2;
     product2 = swapper;
 }
 
 function EmptyObjects()
 {
     product1 = null;
     product2 = null;
 }

I thought it through, and what I was thinking wont work. Sorry!