A
Size: a a a
A
JS
AA
JS
\case Nothing -> Seq.empty; Just x -> Seq.singleton x
MK
maybe singleton empty
жеJS
JS
foldMap pure
, кто побьёт?JS
[
[
\case Nothing -> Seq.empty; Just x -> Seq.singleton x
JS
MP
pure = Seq.singleton
?KV
pure = Seq.singleton
?MP
MP
(m <> Map.singleton k (Set.singleton v))
[
KV
(m <> Map.singleton k (Set.singleton v))
MP
JS
pure = Seq.singleton
?AA
\case Nothing -> Seq.empty; Just x -> Seq.singleton x