How to combine Option values in Scala?
- by Jeff
Hi!
I want to be able to apply an operation f: (T,T) => T to two Option[T] values in Scala. I want the result to be None if any of the two values is None.
More specifically, I want to know if is there a shorter way to do the following:
def opt_apply[T](f: (T,T) => T, x: Option[T], y: Option[T]): Option[T] = {
(x,y) match {
case (Some(u),Some(v)) => Some(f(u,v))
case _ => None
}
}
I have tryied (x zip y) map {case (u,v) => f(u,v)} but the result is an Iterator[T] not an Option[T].
Any help will be appreciated. Thanks.
