rxmarbles | Interactive diagrams of Rx Observables | Reactive Programming library
kandi X-RAY | rxmarbles Summary
kandi X-RAY | rxmarbles Summary
A webapp for experimenting with diagrams of [Rx] Observables, for learning purposes.
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QUESTION
ANSWER
Answered 2021-Oct-27 at 18:07Here is a Playground that might do what you want. I didn't do a whole lot of testing on it so please proceed with caution:
QUESTION
I'm working on an iOS application adopting the MVVM pattern, using SwiftUI for designing the Views and Swift Combine in order to glue together my Views with their respective ViewModels.
In one of my ViewModels I've created a Publisher
(type Void
) for a button press and another one for the content of a TextField
(type String
).
I want to be able to combine both Publishers within my ViewModel in a way that the combined Publisher only emits events when the button Publisher emits an event while taking the latest event from the String publisher, so I can do some kind of evaluation on the TextField
data, every time the user pressed the button. So my VM looks like this:
ANSWER
Answered 2020-May-22 at 19:48It sounds great to have a built-in operator for this, but you can construct the same behavior out of the operators you've got, and if this is something you do often, it's easy to make a custom operator out of existing operators.
The idea in this situation would be to use combineLatest
along with an operator such as removeDuplicates
that prevents a value from passing down the pipeline unless the button has emitted a new value. For example (this is just a test in the playground):
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