reading array from the last into begining

bh_perl has asked for the wisdom of the Perl Monks concerning the following question:

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Re: reading array from the last into begining by davido (Cardinal) on Oct 08, 2003 at 04:02 UTC
Q: How do I iterate over an array in reverse order: `foreach my $element ( reverse @array ) { print "$element\n"; }` [download] Q: How do I sort an array in reverse order (descending instead of ascending): `@sorted_array = reverse sort @array;` [download] or `@sorted_array = sort { $b <=> $a } @array;` [download] (That's for numeric values. For strings try....) `@sorted_array = sort { $b cmp $a } @array;` [download] Hmm.... a few others with map and unshift: `@reversed_array = map { $array[$_] } reverse 0..$#array;` [download] or.... `foreach $element ( @array ) { unshift @reversed_array, $element; }` [download] Have at it! Dave "If I had my life to do over again, I'd be a plumber." -- Albert Einstein	[reply] [d/l] [select]
Re: reading array from the last into begining by vek (Prior) on Oct 08, 2003 at 03:15 UTC
reverse `for (reverse @array) { # do stuff... }` [download] -- vek --	[reply] [d/l]
Re: reading array from the last into begining by BrowserUk (Patriarch) on Oct 08, 2003 at 04:20 UTC
One way{grin} `P:\test>perl -le"@a = 1.. 10; print for sort{1} @a 10 9 8 7 6 5 4 3 2 1` [download] Examine what is said, not who speaks. "Efficiency is intelligent laziness." -David Dunham "Think for yourself!" - Abigail	[reply] [d/l]