Esempi in C# (CSharp) per MoveLeft.SelectMany

Esempio n. 1

 public Option <ListZipper <A> > MoveLeftN(int n)
 {
     return(n == 0 ?
            this.Some() :
            n < 0 ?
            MoveRightN(Math.Abs(n)) :
            MoveLeft.SelectMany(z => z.MoveLeftN(n - 1)));
 }