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 <bart.gauquie@gmail.com>:

> 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
>

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