self collect: aBlock as: Set 2010/3/10 Mariano Martinez Peck <marianop...@gmail.com>: > Hi. I was needing something like the SQL select distinct, that doesn't take > into account repeated objects. I didn't found anything useful in Collection, > and thus, I have implemented this: > > Collection >> collectDistinct: aBlock > > > collectDistinct: aBlock > "Evaluate aBlock with each of the receiver's elements as the argument. > Collect the resulting values into a Set, thus repeated objects will not > be present. > Answer the new collection." > > | newSet | > newSet := self species new asSet. > self do: [:each | newSet add: (aBlock value: each)]. > ^ newSet > > > Is there a better way ? Do you think it make sense to put this in Pharo ? > > Cheers > > Mariano > > _______________________________________________ > Pharo-project mailing list > Pharo-project@lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >
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