Clojurians Log v2

@cmdrdats The pattern you describe is known (part of optimization of a component) and the issue you describe is also known as @roman01la said above.

Personally I use a hook that does the cleanup

Something along the lines: https://github.com/g7s/rum/blob/hooks/src/rum/core.cljs#L572

@g7s great, thanks for the feedback - use-derived-atom looks interesting - is this in a fork?

Yes it is in a fork that I had made long ago.

ah, ok - I see the current rum code has:

(defn use-reducer [reducer-fn initial-value]
  [initial-value reducer-fn])

(defn use-effect!
  ([setup-fn])
  ([setup-fn deps]))

(defn use-callback
  ([callback] callback)
  ([callback deps] callback))

probably in prep for moving away from React?

I guess a similar effect might be achieved with a mixin if there's a registry of derived atoms against a component?

Yeah exactly you can do that with a mixin as you describe