assign None to option when element is empty

Question

I have a list of Integer which I need to convert to Option, however when List is empty i need to assign it as none. please suggest

val list: List[Int] = List()

val x = option(list)

if list is empty x should be none and if list has some value say List(1,2) then x should be Some(List(1,2))

please suggest

I have been trying x = Option(y) which returns some(List()). I have tried switch case which were giving compilation error. Could you please suggest — danD, Apr 16 '19 at 07:13

score 1 · Answer 1 · answered Apr 16 '19 at 07:11

1

Option(list).filter(_.nonEmpty)

answered Apr 16 '19 at 07:11

Tim

wow, Nice thank for your help – danD Apr 16 '19 at 07:23
And could you please suggest how to get the same result if instead of list it is Double.. like Option(0.0).filter will throw error – danD Apr 16 '19 at 08:37
`Option(double).filter(_ != 0.0)` – Tim Apr 16 '19 at 08:53

1 Answers1