Collections always return results on an new instance of its own #species.
That is fabulous to me.  It is what's desired most times.
With that in mind, if you expected a bag or something else, you should convert 
(asXXX) before the collect.
Cheers

r.

From: [email protected] 
[mailto:[email protected]] On Behalf Of Clara Allende
Sent: 27 October 2011 14:15
To: [email protected]
Subject: [Pharo-project] aSet collect: answers aSet??


Hi guys..
This morning some students came with an exercise like this:
(Set with: 1 with: 2 with:3 with:4 with:5) collect:[:e | e even]. a Set(false 
true)

But they don't want to get aSet, (regardless this particular example doesn't 
make sense)... the question is, why if I send collect: to aSet I get aSet and 
not aBag? What happens if I *want* repeated elements after the transformation? 
:( And when did this behavior change?
--

"Most good programmers do programming not because they expect to get paid or 
get adulation by the public, but because it is fun to program."

Linus Torvalds



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