Fast Vector.<int> creation

Is there a faster way to create a vector than:

   var vect1:Vector.<int> = new Vector.<int>(4,true);
   vect1[0]=1;
   vect1[1]=2;
   vect1[2]=2;
   vect1[3]=2;

I have thought that this could be done (as an Array), but it gives an error 5003

var vect1:Vector.<int> = [1,2,2,2].<int>

Any ideas?