Hello Everyone, It also makes sense to me.
the message `addAll: aCollection`, is defined in **Collection** object. The behavior of addAll: is to add every object of the collection. So every dev who learn pharo will understand `addAll: aCollection` message, add all object of the collection aCollection. If you want to count a String just send an `add:` message to Bag object. Finally the behavior of the Pharo Bag seems similar to Python Counter Object [1]. I don't understand why you found this behavior strange. I hope it will help. [1] : https://docs.python.org/3/library/collections.html#collections.Counter -- Dutriez Clément Le dim. 23 oct. 2022 à 13:35, Sebastian Jordan Montano < sebastian.jor...@inria.fr> a écrit : > For me it makes sense that in your example `aBag at: $a` returns `5` > > Because as you said, a Bag is for keeping occurrences. So, at: $a should > return how many occurrences $a has > > Sebastian > > ----- Mail original ----- > > De: "Stephane Ducasse" <stephane.duca...@inria.fr> > > À: "Pharo Development List" <pharo-dev@lists.pharo.org> > > Envoyé: Dimanche 23 Octobre 2022 09:27:45 > > Objet: [Pharo-dev] Re: About Bag API > > > it is because at: is in fact occurrencesOf: > > > > S > > > >> On 23 Oct 2022, at 11:26, stephane ducasse <stephane.duca...@inria.fr> > wrote: > >> > >> Hi > >> > >> I wonder why I cannot get values of a entry using at: > >> > >> | aBag | > >> aBag := Bag new. > >> aBag addAll: ‘aabbbacaccca’. > >> aBag at: $a > >>>>> 5 > >> > >> I have the impression that this is because Bag API never got the > correct amount > >> of love > >> but may be I’m wrong. > >> > >> What is your opinion? > >> > > > S >