Re: using function delete with arrays

As I understand (after taking attention under first warn) - when all array items marked(my first mistake that if I assign every array element to undef and then call scalar(@array) then I've must to get 0 been wrong. Because of that I say "marked" as deleted) as deleted it's realy clear array.. So my new question - where can I get true about "delete" and arrays :).

Thnx for your attention,
Alex.

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Re^2: using function delete with arrays by moritz (Cardinal) on Jul 17, 2007 at 11:25 UTC
Use splice: `$ perl -wle 'my @a=(2,3,4); splice @a, 1, 1, (); print scalar @a' 2` [download] Perl 6 in German	[reply] [d/l]
Re^2: using function delete with arrays by moritz (Cardinal) on Jul 17, 2007 at 11:40 UTC
Another idea how to accomplish what you (presumably) want to do: `use List::Util qw(shuffle); @list = shuffle @list; # now you can just shift() or pop() until @list is empty` [download] Perl 6 in German	[reply] [d/l]
Re^2: using function delete with arrays by dsheroh (Monsignor) on Jul 17, 2007 at 15:12 UTC
Your understanding is incorrect. `scalar(@array)` returns the number of elements in an array. Whether the element is defined or not doesn't matter: `$ perl -e '@arr = (1, 2, 3); print scalar(@arr), "\n"' 3 $ perl -e '@arr = (undef, undef, undef); print scalar(@arr), "\n"' 3` [download]	[reply] [d/l] [select]