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I‘m really unsure if I like the linkedSignal idea. It feels so much like useEffect to synchronize two states which is kind of a code smell (cc @tkdodo.eu) but they make an interesting case…

yeah I actually like the `computed` solution they are showing in the post. In React, I'd do: function ItemList({ items }) { const [item, setItem] = useState() // prefer user selection, fallback to first item const selectedItem = item ?? items[0] } deriving state better than syncing it

Okay then I misunderstood the example, but isn't that .. bad? Like, let's I have a dropdown with 5 elements. I select the second one. Now a new element is added (background refetch), the list now has 6 elements. Why would that undo my selection?

Hm, you’re right, I can’t really think of a real world use case where you’d want that behavior… Maybe the initial gut feeling about the new linkedSignal API was right :D

We can say: fall back to the first item if the item chosen by the user is no longer valid, and that's fair, but we can still do that with derived state: