Unroll it, bit by bit:

@_We'll take the parameters passed to the sub..
{@_}..and make an anonymous hash out of them.
{{@_}}{ ... }..now we're going to dereference this hashref..
@{{@_}}{qw/ ... /}..but take a slice of it when we do so;
@{{@_}}{qw/foo bar/}Specifically, we'll extract the foo and bar values from the hashref..
my ($foo, $bar) = @{{@_}}{qw/foo bar/}..and put them into $foo and $bar

Essentially, the code is equivilent to the following, but avoids the %args variable:

sub foobar {
  my %args = @_;
  my $foo = $args{foo};
  my $bar = $args{bar};
}

[download]

perl -pe '"I lo*`+$^X$\"$]!$/"=~m%(.*)%s;$_=$1;y^`+*^e v^#$&V"+@( NO CARRIER'

In reply to Re: Explanation of commonly used Perl by Chmrr
in thread Explanation of commonly used Perl by tradez

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