On Wed, Apr 20, 2016 at 2:25 PM, Joseph Alotta <joseph.alo...@gmail.com> wrote:
> There is a possibility of duplicates. For example, if I go to Starbucks > buy a coffee, then buy a second cup. There would be two transactions same > amount, same day. > > What about OrderedCollection? > > OrderedCollection would also work, especially if you want to see what order they happened in. If you just care about counting the times it happened, Bag might be better. > How do I send #asSet to the bag, give that the bag is an instance variable > in my larger object? > > In the explorer (right where you tried exploring the dictionary value in the bag), select the bag variable. Then, down int eh bottom pane, type in self asSet and explore that. [image: Inline image 1] > > > > > > On Apr 20, 2016, at 2:43 PM, cbc [via Smalltalk] <[hidden email] > <http:///user/SendEmail.jtp?type=node&node=4891076&i=0>> wrote: > > > > HI Joe, > > A Bag is a structure to hold multiple, possibly repeating, objects in > it. One of the benefits is to know how many times an object is inside of > the bag - how many times it repeats. > > > > Bag is implemented with a Dictionary it in - the key is the objects that > you put into the bag, and the value is the count of how many times it was > put into the bag (hence all of the 1's that you see - they were probably > just added once to the bag). > > > > The explorer is optimized to make Dictionary navigation fast and > convenient for normal Dictionaries - you can see and select the key, and > get to see the details of the values in the dictionary. > > It is not optimized for looking at the dictionary in the Bag, where you > care about the key (and mostly not about the value - at least for your use > case). > > > > To explore the values in the Bag, I would suggest one of two ways of > getting at the data: > > 1> send #asSet to the bag, and explore that > > 2> send #keys to the dictionary, and explore that > > Either should work. > > > > One more thing to think about - if you aren't going to have multiples of > your Transaction objects (or don't care to know that you have multiple of > them) in your Bag, you might want to consider using a Set instead. > > > > Thanks, > > cbc > > > > On Wed, Apr 20, 2016 at 12:31 PM, Joseph Alotta <[hidden email]> wrote: > > Help! > > > > > > I have a data structure as the screenshot below shows. > > > > There is a Bag with Transaction objects. > > > > I can’t see inside the Transaction objects? > > > > Why is there a Dictionary? > > > > I can see the beginning of the transaction data, but I can’t the the > whole line? > > > > When I explore, it opens a window on Integer 1. Where are all the 1s > coming from? > > > > > > Sincerely, > > > > Joe. > > > > > > here is the link: https://www.flickr.com/photos/jalotta/26480315621/ > > > > > > > > _______________________________________________ > > Beginners mailing list > > [hidden email] > > http://lists.squeakfoundation.org/mailman/listinfo/beginners > > > > > > _______________________________________________ > > Beginners mailing list > > [hidden email] > > http://lists.squeakfoundation.org/mailman/listinfo/beginners > > > > > > If you reply to this email, your message will be added to the discussion > below: > > http://forum.world.st/Help-can-t-see-inside-a-Bag-tp4891049p4891054.html > > To start a new topic under Squeak - Beginners, email [hidden email] > <http:///user/SendEmail.jtp?type=node&node=4891076&i=1> > > To unsubscribe from Squeak - Beginners, click here. > > NAML > > > ------------------------------ > View this message in context: Re: Help! can't see inside a Bag > <http://forum.world.st/Help-can-t-see-inside-a-Bag-tp4891049p4891076.html> > Sent from the Squeak - Beginners mailing list archive > <http://forum.world.st/Squeak-Beginners-f107673.html> at Nabble.com. > > _______________________________________________ > Beginners mailing list > Beginners@lists.squeakfoundation.org > http://lists.squeakfoundation.org/mailman/listinfo/beginners > >
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