RxJS.AsyncSubject

data AsyncSubject :: Type -> Type

Please see RxJS Version 5.* documentation for additional details on proper usage of the library.

Instances

• Functor AsyncSubject
• Apply AsyncSubject
• Applicative AsyncSubject
• Bind AsyncSubject
• Monad AsyncSubject
• Semigroup (AsyncSubject a)

  NOTE: The semigroup instance uses merge NOT concat.

• Alt AsyncSubject
• Plus AsyncSubject
• Alternative AsyncSubject
• MonadZero AsyncSubject
• MonadPlus AsyncSubject

observeOn :: forall a. Scheduler -> AsyncSubject a -> AsyncSubject a

Makes every next call run in the new Scheduler.

subscribeOn :: forall a. Scheduler -> AsyncSubject a -> AsyncSubject a

Makes subscription happen on a given Scheduler.

subscribe :: forall e a. Subscriber a -> AsyncSubject a -> Eff e Subscription

Subscribing to an AsyncSubject is like calling a function, providing next, error and completed effects to which the data will be delivered.

subscribeNext :: forall e a. (a -> Eff e Unit) -> AsyncSubject a -> Eff e Subscription

just :: forall a. a -> AsyncSubject a

Creates an AsyncSubject that emits the value specify, and then emits a complete notification. An alias for of.

asObservable :: forall a. AsyncSubject a -> Observable a

Create an Observable from a AsyncSubject

buffer :: forall b a. AsyncSubject a -> AsyncSubject b -> AsyncSubject (Array a)

Collects values from the first AsyncSubject into an Array, and emits that array only when second AsyncSubject emits.

bufferCount :: forall a. Int -> Int -> AsyncSubject a -> AsyncSubject (Array a)

Collects values from the past as an array, emits that array when its size (arg1) reaches the specified buffer size, and starts a new buffer. The new buffer starts with nth (arg2) element of the AsyncSubject counting from the beginning of the last buffer.

bufferToggle :: forall c b a. (AsyncSubject a) -> (AsyncSubject b) -> (b -> AsyncSubject c) -> (AsyncSubject (Array a))

Collects values from the source AsyncSubject (arg1) as an array. Starts collecting only when the opening (arg2) AsyncSubject emits, and calls the closingSelector function (arg3) to get an AsyncSubject that decides when to close the buffer. Another buffer opens when the opening AsyncSubject emits its next value.

bufferWhen :: forall b a. AsyncSubject a -> (a -> AsyncSubject b) -> AsyncSubject (Array a)

Collects values from the past as an array. When it starts collecting values, it calls a function that returns an AsyncSubject that emits to close the buffer and restart collecting.

concatMap :: forall b a. AsyncSubject a -> (a -> AsyncSubject b) -> AsyncSubject b

Equivalent to mergeMap (a.k.a, >>=) EXCEPT that, unlike mergeMap, the next bind will not run until the AsyncSubject generated by the projection function (arg2) completes. That is, composition is sequential, not concurrent. Warning: if source values arrive endlessly and faster than their corresponding inner AsyncSubjects can complete, it will result in memory issues as inner AsyncSubjects amass in an unbounded buffer waiting for their turn to be subscribed to.

concatMapTo :: forall c b a. AsyncSubject a -> AsyncSubject b -> (a -> b -> AsyncSubject c) -> AsyncSubject c

The type signature explains it best. Warning: Like concatMap, composition is sequential.

every :: forall a. AsyncSubject a -> (a -> Boolean) -> AsyncSubject Boolean

Determines whether all elements of an AsyncSubject satisfy a condition. Returns an AsyncSubject containing a single element determining whether all elements in the source AsyncSubject pass the test in the specified predicate.

exhaustMap :: forall b a. AsyncSubject a -> (a -> AsyncSubject b) -> AsyncSubject b

It's Like concatMap (a.k.a, >>=) EXCEPT that it ignores every new projected AsyncSubject if the previous projected AsyncSubject has not yet completed.

expand :: forall a. AsyncSubject a -> (a -> AsyncSubject a) -> AsyncSubject a

It's similar to mergeMap, but applies the projection function to every source value as well as every output value. It's recursive.

groupBy :: forall b a. (a -> b) -> AsyncSubject a -> AsyncSubject (AsyncSubject a)

Groups the items emitted by an AsyncSubject (arg2) according to the value returned by the grouping function (arg1). Each group becomes its own AsyncSubject.

mapTo :: forall b a. b -> AsyncSubject a -> AsyncSubject b

Emits the given constant value on the output AsyncSubject every time the source AsyncSubject emits a value.

mergeMap :: forall b a. AsyncSubject a -> (a -> AsyncSubject b) -> AsyncSubject b

Maps each value to an AsyncSubject, then flattens all of these AsyncSubjects using mergeAll. It's just monadic bind.

mergeMapTo :: forall b a. AsyncSubject a -> AsyncSubject b -> AsyncSubject b

Maps each value of the AsyncSubject (arg1) to the same inner AsyncSubject (arg2), then flattens the result.

pairwise :: forall a. AsyncSubject a -> AsyncSubject (Array a)

Puts the current value and previous value together as an array, and emits that.

partition :: forall a. (a -> Boolean) -> AsyncSubject a -> Array (AsyncSubject a)

Given a predicate function (arg1), and an AsyncSubject (arg2), it outputs a two element array of partitioned values (i.e., [ AsyncSubject valuesThatPassPredicate, AsyncSubject valuesThatFailPredicate ]).

scan :: forall b a. (a -> b -> b) -> b -> AsyncSubject a -> AsyncSubject b

Given an accumulator function (arg1), an initial value (arg2), and a source AsyncSubject (arg3), it returns an AsyncSubject that emits the current accumlation whenever the source emits a value.

switchMap :: forall b a. AsyncSubject a -> (a -> AsyncSubject b) -> AsyncSubject b

Projects each source value to an AsyncSubject which is merged in the output AsyncSubject, emitting values only from the most recently projected AsyncSubject.

switchMapTo :: forall b a. AsyncSubject a -> AsyncSubject b -> AsyncSubject b

It's like switchMap, but maps each value to the same inner AsyncSubject.

window :: forall b a. AsyncSubject a -> AsyncSubject b -> AsyncSubject (AsyncSubject a)

It's like buffer, but emits a nested AsyncSubject instead of an array.

windowCount :: forall a. Int -> Int -> AsyncSubject a -> AsyncSubject (AsyncSubject a)

It's like bufferCount, but emits a nested AsyncSubject instead of an array.

windowTime :: forall a. Int -> Int -> AsyncSubject a -> AsyncSubject (AsyncSubject a)

It's like bufferTime, but emits a nested AsyncSubject instead of an array, and it doesn't take a maximum size parameter. arg1 is how long to buffer items into a new AsyncSubject, arg2 is the when the next buffer should begin, and arg3 is the source AsyncSubject.

windowToggle :: forall c b a. (AsyncSubject a) -> (AsyncSubject b) -> (b -> AsyncSubject c) -> (AsyncSubject (Array a))

It's like bufferToggle, but emits a nested AsyncSubject instead of an array.

windowWhen :: forall b a. AsyncSubject a -> AsyncSubject b -> AsyncSubject (AsyncSubject a)

It's like bufferWhen, but emits a nested AsyncSubject instead of an array.

audit :: forall b a. AsyncSubject a -> (a -> AsyncSubject b) -> AsyncSubject a

It's like auditTime, but the silencing duration is determined by a second AsyncSubject.

auditTime :: forall a. Int -> AsyncSubject a -> AsyncSubject a

Ignores source values for duration milliseconds, then emits the most recent value from the source AsyncSubject, then repeats this process.

debounce :: forall a. AsyncSubject a -> (a -> AsyncSubject Int) -> AsyncSubject a

It's like debounceTime, but the time span of emission silence is determined by a second AsyncSubject. Allows for a variable debounce rate.

debounceTime :: forall a. Int -> AsyncSubject a -> AsyncSubject a

It's like delay, but passes only the most recent value from each burst of emissions.

distinct :: forall a. AsyncSubject a -> AsyncSubject a

Returns an AsyncSubject that emits all items emitted by the source AsyncSubject that are distinct by comparison from previous items.

distinctUntilChanged :: forall a. AsyncSubject a -> AsyncSubject a

Returns an AsyncSubject that emits all items emitted by the source AsyncSubject that are distinct by comparison from the previous item.

elementAt :: forall a. AsyncSubject a -> Int -> AsyncSubject a

Emits the single value at the specified index in a sequence of emissions from the source AsyncSubject.

filter :: forall a. (a -> Boolean) -> AsyncSubject a -> AsyncSubject a

Filter items emitted by the source AsyncSubject by only emitting those that satisfy a specified predicate.

ignoreElements :: forall a. AsyncSubject a -> AsyncSubject a

Ignores all items emitted by the source AsyncSubject and only passes calls of complete or error.

last :: forall a. AsyncSubject a -> AsyncSubject a

Returns an AsyncSubject that emits only the last item emitted by the source AsyncSubject.

sample :: forall b a. AsyncSubject a -> AsyncSubject b -> AsyncSubject a

It's like sampleTime, but samples whenever the notifier AsyncSubject emits something.

sampleTime :: forall a. Int -> AsyncSubject a -> AsyncSubject a

Periodically looks at the source AsyncSubject and emits whichever value it has most recently emitted since the previous sampling, unless the source has not emitted anything since the previous sampling.

skip :: forall a. Int -> AsyncSubject a -> AsyncSubject a

Returns an AsyncSubject that skips n items emitted by an AsyncSubject.

skipUntil :: forall b a. AsyncSubject a -> AsyncSubject b -> AsyncSubject a

Returns an AsyncSubject that skips items emitted by the source AsyncSubject until a second AsyncSubject emits an item.

skipWhile :: forall a. (a -> Boolean) -> AsyncSubject a -> AsyncSubject a

Returns an AsyncSubject that skips all items emitted by the source AsyncSubject as long as a specified condition holds true, but emits all further source items as soon as the condition becomes false.

take :: forall a. Int -> AsyncSubject a -> AsyncSubject a

Emits only the first n values emitted by the source AsyncSubject.

takeUntil :: forall b a. AsyncSubject a -> AsyncSubject b -> AsyncSubject a

Lets values pass until a second AsyncSubject emits something. Then, it completes.

takeWhile :: forall a. (a -> Boolean) -> AsyncSubject a -> AsyncSubject a

Emits values emitted by the source AsyncSubject so long as each value satisfies the given predicate, and then completes as soon as this predicate is not satisfied.

throttle :: forall b a. AsyncSubject a -> (a -> AsyncSubject b) -> AsyncSubject a

It's like throttleTime, but the silencing duration is determined by a second AsyncSubject.

throttleTime :: forall a. Int -> AsyncSubject a -> AsyncSubject a

Emits a value from the source AsyncSubject, then ignores subsequent source values for duration milliseconds, then repeats this process.

combineLatest :: forall c b a. (a -> b -> c) -> AsyncSubject a -> AsyncSubject b -> AsyncSubject c

An AsyncSubject of projected values from the most recent values from each input AsyncSubject.

concat :: forall a. AsyncSubject a -> AsyncSubject a -> AsyncSubject a

Concatenates two AsyncSubjects together by sequentially emitting their values, one AsyncSubject after the other.

concatAll :: forall a. AsyncSubject (AsyncSubject a) -> AsyncSubject a

Converts a higher-order AsyncSubject into a first-order AsyncSubject by concatenating the inner AsyncSubjects in order.

exhaust :: forall a. AsyncSubject (AsyncSubject a) -> AsyncSubject a

Flattens an AsyncSubject-of-AsyncSubjects by dropping the next inner AsyncSubjects while the current inner is still executing.

merge :: forall a. AsyncSubject a -> AsyncSubject a -> AsyncSubject a

Creates an output AsyncSubject which concurrently emits all values from each input AsyncSubject.

mergeAll :: forall a. AsyncSubject (AsyncSubject a) -> AsyncSubject a

Converts a higher-order AsyncSubject into a first-order AsyncSubject which concurrently delivers all values that are emitted on the inner AsyncSubjects.

race :: forall a. Array (AsyncSubject a) -> AsyncSubject a

Returns an AsyncSubject that mirrors the first source AsyncSubject to emit an item from the array of AsyncSubjects.

startWith :: forall a. Array a -> AsyncSubject a -> AsyncSubject a

Returns an AsyncSubject that emits the items in the given Array before it begins to emit items emitted by the source AsyncSubject.

withLatestFrom :: forall c b a. (a -> b -> c) -> AsyncSubject a -> AsyncSubject b -> AsyncSubject c

Combines each value from the source AsyncSubjects using a project function to determine the value to be emitted on the output AsyncSubject.

zip :: forall a. Array (AsyncSubject a) -> AsyncSubject (Array a)

Waits for each AsyncSubject to emit a value. Once this occurs, all values with the corresponding index will be emitted. This will continue until at least one inner AsyncSubject completes.

catch :: forall a. (AsyncSubject a) -> (Error -> AsyncSubject a) -> (AsyncSubject a)

retry :: forall a. Int -> AsyncSubject a -> AsyncSubject a

If the source AsyncSubject calls error, this method will resubscribe to the source AsyncSubject n times rather than propagating the error call.

delay :: forall a. Int -> AsyncSubject a -> AsyncSubject a

Time shifts each item by some specified amount of milliseconds.

delayWhen :: forall b a. AsyncSubject a -> (a -> AsyncSubject b) -> AsyncSubject a

Delays the emission of items from the source AsyncSubject by a given time span determined by the emissions of another AsyncSubject.

dematerialize :: forall a. AsyncSubject (Notification a) -> AsyncSubject a

materialize :: forall a. AsyncSubject a -> AsyncSubject (Notification a)

performEach :: forall e a. AsyncSubject a -> (a -> Eff e Unit) -> Eff e (AsyncSubject a)

Performs the effect on each value of the AsyncSubject. An alias for do. Useful for testing (transparently performing an effect outside of a subscription).

toArray :: forall a. AsyncSubject a -> AsyncSubject (Array a)

count :: forall a. AsyncSubject a -> AsyncSubject Int

Counts the number of emissions on the source and emits that number when the source completes.