[Newbies] How to empty a collection?

[Brian Murphy-Dye]

My understanding as well is that this is the purpose of #become:, but
also that it is not very efficient in some versions of Smalltalk. If
you are using an OrderedCollection, this is probably a reasonably
efficient method as it doesn't need to search through the whole list
every time it removes an element:

removeAll
   [self notEmpty] whileTrue: [self removeLast]

Brian.


On Feb 18, 2008 6:42 PM, Marcin Tustin <mm3 at zepler.net> wrote:
> My own testing suggests that references to the object remain in place. I
> would guess that that is the whole point of become.
>
>
>
> On Feb 19, 2008 1:38 AM, cdrick <cdrick65 at gmail.com> wrote:
>
> >
> > > Isn't Cedrick's aida solution going to be significantly faster?
> > >
> >
> > this is not mine :)
> >
> > butI'd interested to see if it's a good use of #become:... Does it
> > keep references ? is it safe ?
> >
> > Thanks
> >
> >
> >
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> >
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