Mapping a tuple

Question

Is there a way to map a tuple?

Tried the following but not working

(a, b).map(v1,v2 => SomeFunction(v1, v2)

Possible alternative is case class

      (a, b) match {
          case (Some(v1), Some(v2)) => SomeFunction(a, b)
          case _ => None
        }

Wondering if there's other alternative.

Also, `(a, b).map(v1,v2 => SomeFunction(v1, v2))` seems to imply you don't want a `map` operation at all, rather, you just want to use the elements of the tuple as arguments to a function. — juanpa.arrivillaga, Jun 06 '17 at 23:39
You're right. I want to pass these as arguments only if it's Some(v1), Some(v2). Trying to make use of map for it. — Nithin Chandy, Jun 06 '17 at 23:41
Yep, totally agree. I think pattern matching is more appropriate here. Any other suggestions? — Nithin Chandy, Jun 06 '17 at 23:43
@NithinChandy Just use them directly? If you have a tuple `(a, b)`, just call `SomeFunction(a, b)`... — erip, Jun 06 '17 at 23:58

score 1 · Accepted Answer · answered Jun 06 '17 at 23:50

1

You can iterate over tuples and then map() over the Iterator ...

(9,'c',true).productIterator.map(???)

... but tuples hold elements of differing types so the iterator is Iterator[Any] which isn't likely to be useful or safe.

answered Jun 06 '17 at 23:50

jwvh

1 Answers1