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Modules
base
clang
crypto
database
http
lock_free
mail
nom
sodium
sqlite
terminal
uuid
web
wolfssl
universe (module lock_free)
└─
lock_free
├─
Map
├─
Sieve_Cache
(1 arg)
└─
stack
option
option
option
(T
type
)
:
switch T, nil
,
orderable
,
hashable
[Contains abstract features]
[Module base]
¶
[src]
option -- feature wrapping a value or nothing
option represents an optional value of type T
Type Parameters
T
:
Any
[Module base]
¶
[src]
Functions
group_hashable_by
(K
type
:
property.hashable
, f
Unary K T
)
=>
container.Map K (Sequence T)
[Inherited from
Sequence
]
¶
[src]
group the elements of this sequence by a key of type K
f determines the key of an element
0.095dev (GIT hash 5a97c5766ea04e5412cbfaed4c53658737cd2e4b)
option represents an optional value of type T