[Israel.pm] How to remove elements according to a filter from an array

[Peter Gordon]

It is better to iterate backwards over the array.

This method is going to miss elements.

On Thu, 2007-05-24 at 15:54 -0400, yaron at kahanovitch.com wrote:
> Hi
> 
> See perldoc -f delete.
> 
> 4 example (Untested)
> 
> foreach $index (0 .. $#ARRAY) {
>         delete $ARRAY[$index] if (criteria);
>     }
> 
> 
> YAron Kahanovitch
> ----- Original Message -----
> From: "Yossi Itzkovich" <Yossi.Itzkovich at ecitele.com>
> To: "Perl in Israel" <perl at perl.org.il>
> Sent: 20:36:29 (GMT+0200) Africa/Harare יום חמישי 24 מאי 2007
> Subject: [Israel.pm] How to remove elements according to a filter from an array
> 
> Hi,
> 
> Assuming I have a big array, and I want to remove elemnts according to a
> criteria, how do I do it ?
> Please note, I am not asking about getting a new list of elements that
> passed the filter (like grep does), but removing the items from the
> original list.  For a big array (and assuming that arrays are
> implemented with linked list (is it ?)), then removing items from the
> original list might be much faster.
> 
> 
> Yossi
> 
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