Toestand.Classes

class Read box val | box -> val where

A Box-like container that can be read from

Members

• read :: forall m. MonadDelay m => box -> m val

  Read the current value. Will never cause a refresh.

• listen :: Listener val -> box -> Effect (Effect Unit)

  Be called back whenever something changes

class Write box val | box -> val where

A Box-like container that can be written to.

Members

• write :: val -> box -> Effect val

  Write a new value into the box.

class (Read box val, Write box val) <= ReadWrite box val | box -> val

A shorter way of specify Read+Write

Instances

• (Read box val, Write box val) => ReadWrite box val

write_ :: forall box v. Write box v => v -> box -> Effect Unit

Unit-returning version of write

modify :: forall c v. ReadWrite c v => (v -> v) -> c -> Effect v

Change the value in a Box by applying a function to it.

modify_ :: forall box v. ReadWrite box v => (v -> v) -> box -> Effect Unit

Change the value in a Box by applying a function to it.