Many of the methods in scalaz have symbolic unicode equivalents, such as forever and ∞ (of course, I have this the wrong way round, the symbolic methods really have ASCII equivalents).
I want to transform a List[Option[T]] into a Option[List[T]]. The signature type of the function is def lo2ol[T](lo: List[Option[T]]): Option[List[T]]
Following watching Nick Partidge\'s presentation on deriving scalaz, I got to looking at this example, which is just awesome:
Is there any way to check if an iterator (whether it is from a vector, a list, a deque...) is (still) 开发者_如何学JAVAdereferenceable, i.e. has not been invalidated?
加载中,请稍侯......