Now I want to combine these two so I can expose another chan kotlinlang #coroutines

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Title

Paul Woitaschek

09/07/2018, 3:17 PM

Now I want to combine these two so I can expose another channel of

data class Person(val userName : String, age : Int)

Vsevolod Tolstopyatov [JB]

09/07/2018, 3:42 PM

Now I want to combine these two so I can expose another channel of
data class Person(val userName : String, age : Int)

It’s actually not a

combineLatest

semantics. For the

combineLatest

I’d recommend using

select

operator, for merging two channels

kotlinx.coroutines

has zip operator: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental.channels/zip.html

Paul Woitaschek

09/07/2018, 3:44 PM

Why is it not a

combineLatest

semantic?

Vsevolod Tolstopyatov [JB]

09/07/2018, 3:49 PM

ch1: “John” ch2: 30 ch2: 32 combine latest over these two channels will produce

Person("John", 30), Person("John", 32)

, it’s not a desired behavior for a person example, is it?

Paul Woitaschek

09/07/2018, 3:53 PM

Exactly that is desired

When the user changes it's age, that's the new state I want to render 🙂

Vsevolod Tolstopyatov [JB]

09/07/2018, 3:58 PM

oh, sorry then 🙂

louiscad

09/08/2018, 12:32 AM

@Paul Woitaschek Here's my solution, which works for any number of channels or callbacks, of any type: https://gist.github.com/LouisCAD/d9d1adbd3b4fd36d9dc121658fefd16f Let me know if you need help figuring out how to use it.

Paul Woitaschek

09/08/2018, 5:51 AM

Thanks, after figuring out forever I implemented it in rx and it's way simpler

My conclusion so far is that with anything stream based, rx makes it simpler where with whenever I have a rx.Single / Maybe coroutines work better

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