is it possible to splice an array of gameobject?

this code throws an error saying there is no splice method for array of GO , is this true or my error and are there any other method like this that cant be done on certain types of arrays ?

var inventory : GameObject[];
var hold : GameObject;
function Start()
{var spl = inventory.splice(1,2,hold);
Debug.Log (spl);}

and this error is thrown

MissingMethodException: Method not found: ‘UnityEngine.GameObject.splice’.

UnityScript has no such function for the built-in arrays or Array. See the reference, which also points you to possible container alternatives.