Comments (2)
Hey Bruce, thank you for your report!
However, this is intended behaviour. The parameters on a bind
are meant to give you an observable for one specific instance, so they need to be identifying - and ReactRxJS uses referential equality.
The problem here is that because on every render you're creating a new array, bind
will understand you have just switched to another instance of the observable. So it will unsubscribe from the previous one, call the factory function again (passing in the new array), and it will subscribe to the new observable returned by that function.
Because it's asynchronous, the hook will trigger suspense and when the value comes back, it will set the state. Which causes a re-render, which starts the cycle over again (a new array is created, bind understands it's a new instance, etc.)
The way to work around that depends a lot on your specific case, but usually it's moving the parameter you want to pass to the observable into another state observable, and then referencing that from your bind
.
from react-rxjs.
Thanks very much @voliva for the excellent explanation, much appreciated!
from react-rxjs.
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from react-rxjs.