FRP.Event.Legacy

newtype Event a

This is the same as FRP.Event but with a (somewhat questionable) Apply and Applicative instance.

Constructors

• Event (Event a)

Instances

• Functor Event
• Compactable Event
• Filterable Event
• Apply Event
• Applicative Event
• Alt Event
• Plus Event
• Alternative Event
• (Semigroup a) => Semigroup (Event a)
• (Monoid a) => Monoid (Event a)
• IsEvent Event

subscribe :: forall a. Event a -> (a -> Effect Unit) -> Effect (Effect Unit)

Subscribe to an Event by providing a callback.

subscribe returns a canceller function.

makeEvent :: forall a. ((a -> Effect Unit) -> Effect (Effect Unit)) -> Event a

Make an Event from a function which accepts a callback and returns an unsubscription function.

Note: you probably want to use create instead, unless you need explicit control over unsubscription.

type EventIO a = { event :: Event a, push :: a -> Effect Unit }

create :: forall a. Effect (EventIO a)

Create an event and a function which supplies a value to that event.