Hi, that seems like a very good suggestion. Is more general usable also.
Regards, Bart On Sat, Dec 26, 2009 at 11:44 PM, Julian Fitzell <[email protected]> wrote: > Personally, I would rather see #ifEmpty: modified to return self in > the false case like #ifNil: does. The only in-image sender I can find > that even uses the return value seems to actually expect this > behaviour anyway. :) > > Then you could simply write: > > (aCollection select: [:ea | ...]) ifEmpty: [ ... ] > > Julian > > 2009/12/26 Bart Gauquie <[email protected]>: > > Dear all, > > > > While developing some code, I made following extension of the Collection > > protocol: > > select: aBlock ifNoneTakeAsDefault: aDefaultValue > > |result| > > result := self select: aBlock. > > (result isEmpty) > > ifTrue: [^self class with: aDefaultValue] > > ifFalse: [^result]. > > > > Maybe this could be added to the Pharo 1.1 Collection clazz? Or do we > want > > to keep the interface of Collection as small as possible (which is also a > > good idea!). > > Kind Regards, > > Bart > > -- > > imagination is more important than knowledge - Albert Einstein > > Logic will get you from A to B. Imagination will take you everywhere - > > Albert Einstein > > Learn from yesterday, live for today, hope for tomorrow. The important > thing > > is not to stop questioning. - Albert Einstein > > The true sign of intelligence is not knowledge but imagination. - Albert > > Einstein > > Gravitation is not responsible for people falling in love. - Albert > Einstein > > > > _______________________________________________ > > Pharo-project mailing list > > [email protected] > > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > > _______________________________________________ > Pharo-project mailing list > [email protected] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > -- imagination is more important than knowledge - Albert Einstein Logic will get you from A to B. Imagination will take you everywhere - Albert Einstein Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning. - Albert Einstein The true sign of intelligence is not knowledge but imagination. - Albert Einstein Gravitation is not responsible for people falling in love. - Albert Einstein
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