Arrow
1.1.5
arrow-optics
/
arrow.optics
/
POptional
/
Companion
/
listHead
list
Head
@
JvmStatic
fun
<
A
>
listHead
(
)
:
Optional
<
List
<
A
>
,
A
>
(
source
)
Optional
to safely operate on the head of a list