On 23/04/2013 13:26, kavita kulkarni wrote:
Can you help me in finding the most time effective way to retrieve the
key-values from hash in the same sequence in which data is inserted into
the hash.
But why would you want that?
You can push the keys in an array as well.
But you will often have a list of the keys already.
#!/usr/bin/perl
use strict;
use warnings;
use v5.10; # say
my ( @keys, %row, @rows );
while ( <DATA> ) {
chomp;
my ( $k, $v ) = split " ", $_, 2;
$row{ $k } = $v; # unordered
push @keys, $k; # ordered-1
push @rows, [ $k, $v ]; #ordered-2
}
say "";
for my $k ( keys %row ) {
say "$k: <$row{$k}>";
}
say "";
for my $k ( @keys ) {
say "$k: <$row{ $k }>";
}
say "";
for my $r ( @rows ) {
say sprintf "%s: %s", @$r;
}
say "";
__DATA__
foo-A 42 and a bit
bar-B 81 or less
baz-C 17 forever
xxx-D xxx
yyy-E yyy
--
Ruud
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