Getting a warning when used Map based derivation

[MetaVII]

Greetings!

I have a store class, configured strictly, and class member function with argument to get values from Map based class field (TodoStore in the example).

I use this function in a component, and get the "Derivation is created/updated without reading any observable value. " (TodoList in example)

If I use alike function to get values from array based class field, it's all OK. (You can uncomment getToDoFromArray in example)

So, I would prefer to use strictly configured store and Map based class field, am I doing something wrong? Is it any right way to do so without getting that warning?

example link

[urugator]

The warning means you either forget observer somewhere or you forget to make something obervable. In your case it's the latter - you're missing todosMap: observable in makeObservable

EDIT: consider using eslint-plugin-mobx

[urugator]

[MobX] Since strict-mode is enabled, changing (observed) observable values without using an action is not allowed. Tried to modify: Todos@1.todosMap.keys()
looks like a bug to me, but I will have to investigate

[urugator]

Fixed by #3257

[MetaVII]

Thank you.