public Ar Splice(int start, int numberOf, params dynamic[] toAdd)
{
Ar newAr = new Ar();
if (start < 0) start = this.Count + start;
for (int i = start + numberOf - 1; i >= start; i--)
{
if (i >= this.Count) continue;
newAr.Unshift(this[i]);
this.RemoveAt(i);
}
for (int i = toAdd.Length - 1; i >= 0; i--)
{
this.Insert(start, toAdd[i]);
}
return newAr;
}