cycle-onionify | MIGRATED ! | Reactive Programming library
kandi X-RAY | cycle-onionify Summary
kandi X-RAY | cycle-onionify Summary
A fractal state management tool for Cycle.js applications. onionify creates a wrapped main function, where the wrapped result will have a top-level state stream, and will pass that down to the actual main function. Onionify is a component wrapper, not a driver. This way, your application state won't live in a driver, because the wrapped main is still just a Cycle.js app that can be given to Cycle.run. State stream as source, reducer stream as sink. Your main function can expect a StateSource object under sources.onion, and is supposed to return a stream of reducer functions under sinks.onion. One large state tree for your entire application. All the state in your application should live in the state stream managed internally by onionify. Smaller components in your application can access and update pieces of state by interfacing with its parent component with the help of @cycle/isolate. The parent gives an isolated onion source to its child, and receives an isolated onion sink from its child. The parent component interfaces with the grandparent component in the same style. This makes state management fractal. "Fractal" means that every component in the hierarchy is built in the same way as the top-level main function is built. As a consequence, there is no absolute "global" state, since every component treats its state management relative to its parent. The top-most component will have onionify as its parent. As a consequence, state management is layered like an onion. State streams (sources) will be "peeled off" one layer each time they cross a component input boundary. Reducer streams (sinks) will be stacked one layer each time they cross a component output boundary.
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cycle-onionify Examples and Code Snippets
Community Discussions
Trending Discussions on cycle-onionify
QUESTION
I'm trying to add some behavior exclusively to the last item in a list in Cycle.js. I tried to use cycle-onionify to make a collection like so:
...ANSWER
Answered 2018-Jun-13 at 13:13You can use lenses with makeCollection
. Remember it returns a normal Cycle.js component that you can isolate. So if you want to add a boolean isLast
you can do this like this:
QUESTION
I may be attempting something foolish, but I have a sufficiently-large non-onionified Cycle.js app and I’m trying to learn how onionify works, so I’d like to embed an onionified component into my original non-onion app.
So I have a simple onion-ready component, the increment/decrement example, and I have a simple non-onion Cycle app, the “Hello Last Name” example—how do I smoosh the two together so I have the incrementer component and the Hello component one after the other in the same webpage?
Counter.ts
, onion-ready component
...ANSWER
Answered 2017-Aug-09 at 09:21That's actually pretty simple. As you said, you can call Counter()
in your main, but then it does not have the StateSource
.
The solution is to replace Counter()
with onionify(Counter)()
:
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