Object IList.this[
	int index
] { get; set; }

Private Property IListItem ( 
	index As Integer
) As Object Implements IList.Item
	Get
	Set

private:
virtual property Object^ IListItem[int index] {
	Object^ get (int index) sealed = IList::Item::get;
	void set (int index, Object^ value) sealed = IList::Item::set;
}

JavaScript does not support explicit interface implementations.