Arrow
Toggle table of contents
2.2.0-beta.4
common
Target filter
common
Switch theme
Search in API
Skip to content
Arrow
arrow-optics
/
arrow.optics
/
POptional
/
setNullable
set
Nullable
open
fun
setNullable
(
source
:
S
,
b
:
B
)
:
T
?
Set the focus of a
POptional
with a value.
Return
null if the
POptional
is not matching