[Newbies] Re: Recap: How to empty a collection
janko.mivsek at eranova.si
Wed Feb 20 09:28:14 UTC 2008
Ok, I reimplemented this method as Bert suggested and in the next
version of Aida/Web it will be:
"remove all elements quickly"
self removeAllSuchThat: [:each | true]. "Squeak specific"
" self become: OrderedCollection new " "VW specific"
Note that this method is still an extension of Aida and it must
therefore be portable among dialects, which is the reason of commented
code for VW above.
Bert Freudenberg wrote:
> On Feb 20, 2008, at 2:01 , nicolas cellier wrote:
>>> One thing I wasn't clear on is whether Bert's suggestion:
>>> aColl removeAllSuchThat: [:anElement| true].
>>> Is okay, and why it's okay while many of the other similar approaches
>>> were not.
>> Bert's suggestion is simple and works well.
>> The only question is about efficiency.
>> Up to (Down to?) subclasses to optimize it.
> #removeAllSuchThat: is actually optimized in subclasses (look at its
> implementation in OrderedCollection).
Smalltalk Web Application Server
More information about the Beginners