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MDN has a bit more info on the new FinalizationRegistry API. Has anyone ideas about good use cases for this? https://developer.mozilla.org/en-US/docs/Web/JavaS

• slmjkdbtl 5y ago
  had a use case a couple days ago in an observer pattern where a computed observable's parent should drop the subscription event feom the sub list when the computed child is no longer around, ended up only using WeakRef