I was browsing some of the Magritte source code, when I saw a message
that confused me:
selectors := anObject class allSelectors
select: #isDescriptionSelector.
I couldn't understand how you could pass a Symbol to #select: instead
of a block -- certainly the definition of Collection>>select: implies
it should only take a block. But trying it for myself, I see it works
-- eg
{ 1. 2. 3. 4. } select: #even.
can be used in place of:
{ 1. 2. 3. 4. } select: [ :each | each even ]
Given how much simpler this looks, I was surprised I'd not seen this
usage before, and searching for senders of #select: shows that the
wordier version seems to be generally preferred.
So my question is: is this a usage I should adopt or avoid?
Cheers,
Michael
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