Maybe.map

If struct holds null, then nothingCase result is returned. If struct holds not null value, then $(justCase) result is returned. justCase is fed with unwrapped value.

U map(U delegate() nothingCase, U delegate(T) justCase)
U map(U delegate() nothingCase, U delegate(const T) justCase)
struct Maybe(T)
const
U
map
(
U
)
(
U delegate
()
nothingCase
,
U delegate
(
const T
)
justCase
)
if (
is(T == struct) ||
isAssociativeArray!T
||
isBasicType!T
)

Maybe.map

Meta

Source