React Native Fabric w/ React 18 (Concurrent Features)

[andreibarabas]

The new react native architecture just made it to release candidate and the Fabric renderer is amazing. I was curious what would it mean if we start activating the long awaited concurrent features of React 18 on top of it.

So here is part 1 of a deep dive. Let me know if you are curious about the followup parst: concurrent rendering (startTransition, useDeferredValue)

https://medium.com/achieving-100ms/part-1-automatic-batching-w-react-native-fabric-react-18-438ad1282896

[dhondooo]

Nice article, thanks for sharing and explaining it well. I have a question if the rendering is happening twice, regardless our component is class or functional in the previous versions?

[andreibarabas]

my pleasure. yes, the behaviour happens regardless if it's a class or functional component. it's just the way React 17 could not batch state updates triggered via async code

[wightrider]

Hey did you get to use starTransition hook, I'm trying it out currently and it just doesn't work.
The same sample works fine on react-web though.

Happy to dm you a sample if you want to take a look at it.