The only time the foreach makes more sense (other than as a matter of
preference) is if you want to sort your keys or values.
e.g.
foreach(sort keys %hash){
print "$_ => $hash{$_}\n";
}
foreach(sort {$hash{$a} cmp $hash{$b}} keys(%hash)){
print "$_ => $hash{$_}\n";
}
-----Original Message-----
From: Wiggins d'Anconia [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 08, 2003 4:32 PM
To: Johnstone, Colin
Cc: '[EMAIL PROTECTED]'
Subject: Re: Looping through a Hash
Sort of....
foreach my $key (keys(%picDetails)) {
my $val = $picDetails{$key};
# do stuff to val
}
or
while (my ($key, $val) = each (%picDetails)) {
# do stuff to key or val
}
(foreach may work here as well, but I have always preferred while's for
some reason)
perldoc -f each
perldoc -f keys
perldoc -f values
http://danconia.org
Johnstone, Colin wrote:
> Gidday All,
>
> Can I do this when looping through a Hash.
>
> foreach my($k, $v)( %picDetails ){
> do stuff to $v;
> }
>
> Thanking you in Anticipation
>
> Colin
>
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