Add a temporary variable to an array

So I'm trying to add a temporary variable inside a function to an array. This variable is of a custom made class.

Unfortunately I can't seem to get it to work. The array increases size but when I "call" for the variable it always comes out emtpy unless I declare it outside the function..

Here is the current code where I add the variable:

 var pickUpAction : PlayerActions;
 function PickUp (selectedObject : Transform){
     GoTo(selectedObject);    
 
     //Add a pickUpAction
 //    var pickUpAction : PlayerAction; //this is where I wanted to have the variable so it disappears after being added.
         pickUpAction.interaction = PickUpAction;
         pickUpAction.selectedObject = selectedObject;
     globalActions.Add(pickUpAction);
 }

And here is the example of a function that later on uses it:

 function DoAction (){
     currentAction = (globalActions[0] as PlayerAction);
     
     currentAction.interaction ();
     globalActions.RemoveAt(0);
 }

and this is the class of the variable:

 class PlayerAction {
     var interaction : function():void;
     var selectedObject : Transform;
     var selectedDestination : Transform;
     var selectedPosition : Vector3;
 };

I'm quite new to programming so sorry if I'm missing the obvious! Any help very appreciated.