Module
Halogen.Hooks.Extra.Hooks.UseStateFn
- Package
- purescript-halogen-hooks-extra
- Repository
- jordanmartinez/purescript-halogen-hooks-extra
Idea and implementation by Thomas Honeyman. This was copied over from the Halogen Hooks repository's Examples folder.
#useStateFn Source
useStateFn :: forall b a m. (StateId a -> b) -> a -> Hook m (UseStateFn a) (Tuple a b)Rather than writing this...
state /\ stateId <- useState 0
let modifyState = Hooks.modify_ stateId
pure (state /\ modifyState)
... one can write this code:
state /\ modifyState <- useStateFn Hooks.modify_ 0
See also useModifyState, which makes this even less boilerplate-y.
The function argument should be one of these four functions:
- Hooks.modify_
- Hooks.modify
- Hooks.put
- Hooks.get
#useModifyState Source
useModifyState :: forall a m. a -> Hook m (UseStateFn a) (Tuple a ((a -> a) -> HookM m Unit))