Try out this. ``` listOf(Some(1), Some(2), None, N...

# arrow

[Imran/Malic]

Try out this.

listOf(Some(1), Some(2), None, None).fold(listOf())
  { acc: List<Int>, i: Option<Int> ->
    i.fold(ifEmpty = { acc }, ifSome = { acc.plus(it) })
  }

This is just Kotlin