[Newbies] Proper object removal
cdrick65 at gmail.com
Wed Jun 4 12:19:51 UTC 2008
2008/6/4 Rob Rothwell <r.j.rothwell at gmail.com>:
> On Wed, Jun 4, 2008 at 3:55 AM, Norbert Hartl <norbert at hartl.name> wrote:
>> The objects are still referenced in the collection you get
>> from self selected. The line with "each := nil" is useless
>> as each is only a temporary variable. I assume that you want
>> to empty the selected collection as well. you could do
>> self selected copy do: [:each |
>> self abstractors remove: each.
>> self selected remove: each.
> So...why would I use a copy (self selected copy) in this case? Is that a
> clue to my misunderstanding?
self selected do: [:each |
self selected remove: each ] is to avoid ... as it iterates on the
collection on wich you're removing elements...
aColl:=#(1 2 3) asOrderedCollection.
^aColl do: [:ea | aColl remove ea ]
see here: http://bugs.squeak.org/view.php?id=6937
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