Scala.Rx is an experimental change propagation library for Scala.
Scala.Rx is an experimental change propagation library for Scala.
Questions tagged [scala.rx]
13 questions
8
votes
0 answers
Binding.scala vs Haoyi's Scala.Rx + ScalaTags
How does Binding.scala compare to the concept described here?
Apart from the design descriptions one might compare their implementations of TodoMVC:
Binding.scala
Scala.Rx + ScalaTags
Edit: By now I compared them to scalajs-react. I think react…
Tamriel
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- 9
5
votes
1 answer
What is the difference between Reactive programming and plain old closures?
Example from scala.rx:
import rx._
val a = Var(1); val b = Var(2)
val c = Rx{ a() + b() }
println(c()) // 3
a() = 4
println(c()) // 6
How is the above version better than:
var a = 1; var b = 2
def c = a + b
println(c) // 3
a = 4
println(c) //…
pathikrit
- 32,469
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3
votes
1 answer
Scala.Rx with ScalaTags example compilation error
I tried the scala.js example https://github.com/lihaoyi/hands-on-scala-js and its scala.rx with scalatags part in advanced section.
Example compiles are runs fine but when I try to use the latest scala.rx v 0.3.1 I get following compile…
user4955663
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2
votes
0 answers
How does garbage collection in regards to Ctx.Owner in scala.rx work?
I am trying to wrap my head around how exactly ownerships works in scala.rx. At the moment I have a Scala.js web application that just imports rx.Ctx.Owner.Unsafe._ wherever I am using Rxs. This - however - leads to the creation of a lot of detached…
Florian Baierl
- 2,378
- 3
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2
votes
1 answer
`eventually` not found in scala.rx
Here is an example from the scala.rx doc:
package tutorial.webapp
import rx.core.{Rx, Var}
import rx._
import rx.ops._
import scala.concurrent.Promise
import scala.concurrent.duration._
import scala.scalajs.js.JSApp
import…
qed
- 22,298
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1
vote
0 answers
Is it harmful to throw in the subscribe onError Scala.RX an Observable?
I am using an rx.lang.scala in a for-comprehension, which i want to fail fast. I also want the resource parameters to be closed if an exception occurs. Will the doOnTerminate execute properly if you throw the Exception / Throwable, as in the example…
Stephan Hogenboom
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1
vote
1 answer
How to obtain implicit ownerCtx: rx.Ctx.Owner in scala.rx
Here goes basic hello world example using scala.rx in version 0.3.1.
It doesn't compile because of lack of implicit ownerCtx: rx.Ctx.Owner. How do I get this instance?
import rx._
val a = Var(1)
val b = Var(2)
val c = Rx{ a() + b() }
This Rx might…
pawel.panasewicz
- 1,831
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1
vote
1 answer
Using Timer from scala.rx
Can someone give me a simple example of using the Timer from Li Haoyi's scala.rx that doesn't depend on an Akka or any other libraries besides scalajs, dom, and rx?
The example of a Timer from Haoyi's GitHub is:
import…
user3025403
- 1,070
- 3
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0
votes
1 answer
LinkingErrors when updating from Scala.rx 0.3.2 to 0.4.0
In my project I use Scala.rx 0.3.2. When I upgraded to version 0.4.0 - without changing any code - I suddenly get a lot of LinkingErrors for even simple code like:
private val pageVisibility: Var[String] =…
Florian Baierl
- 2,378
- 3
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- 50
0
votes
1 answer
Overloaded method value trigger with alternatives for '=> Unit' parameter
I just upgraded Scala.rx version 0.3.2 to 0.4.0 and suddenly I get the following errors on my triggers:
overloaded method value trigger with alternatives:
[error] (f: Boolean => Unit)(implicit ownerCtx: rx.Ctx.Owner)rx.Obs
[error] (thunk:…
Florian Baierl
- 2,378
- 3
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0
votes
1 answer
How to test `Var`s of `scala.rx` with scalatest?
I have a method which connects to a websocket and gets stream messages from some really outside system.
The simplified version is:
def watchOrders(): Var[Option[Order]] = {
val value = Var[Option[Order]](None)
// onMessage( order =>…
Freewind
- 193,756
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0
votes
1 answer
Ambiguous overloading: fix it or try something else?
Background: I'm working on using scala.js/scalatags together with scala.rx. What I'm trying to achieve is binding values from html inputs to Rx Vars, using operator style. Here's what I'm up to:
implicit class BoundHtmlInput(input: Input) {
def…
Haspemulator
- 11,050
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0
votes
1 answer
Set a limit to scala.rx timer
Here is an example using Timer from scala.rx:
package tutorial.webapp
import akka.actor.ActorSystem
import rx.core.{Rx, Var}
import rx._
import rx.ops._
import scala.concurrent.Promise
import scala.concurrent.duration._
import…
qed
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