Warn if autorun or reaction does not access any observables?

[IanBellomy]

Made a mistake that led to a reaction being created before the item it watched was made observable.

Was then a little surprised there wasn't some kind of check in reaction/autorun that at least one observable was accessed.

If discoverable, it smells like a situation worth issuing a warning about?

[mweststrate]

see https://mobx.js.org/configuration.html#reactionrequiresobservable-boolean :)

[IanBellomy]

Ahhh , nice.