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Full Discussion: Perl References/Dereferences
Top Forums Shell Programming and Scripting Perl References/Dereferences Post 302423533 by thegeek on Friday 21st of May 2010 08:52:39 AM
Old 05-21-2010
both does the same operation.

while removing the arrow, you are dereferencing using dollar, so by both you get the result...

arrows becomes unnecessary, when

Code:
if the arrow ends up between "subscripty kinds of things," such as square brackets, we can also drop the arrow

from Intermediate Perl.

Read references chapter for more clarification on the same.
This User Gave Thanks to thegeek For This Post:
 

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Perl::Critic::Policy::ControlStructures::ProhibitUnreachUserCContributed Perl DPerl::Critic::Policy::ControlStructures::ProhibitUnreachableCode(3)

NAME
Perl::Critic::Policy::ControlStructures::ProhibitUnreachableCode - Don't write code after an unconditional "die, exit, or next". AFFILIATION
This Policy is part of the core Perl::Critic distribution. DESCRIPTION
This policy prohibits code following a statement which unconditionally alters the program flow. This includes calls to "exit", "die", "return", "next", "last" and "goto". Due to common usage, "croak" and "confess" from Carp are also included. Code is reachable if any of the following conditions are true: o Flow-altering statement has a conditional attached to it o Statement is on the right side of an operator "&&", "||", "//", "and", "or", or "err". o Code is prefixed with a label (can potentially be reached via "goto") o Code is a subroutine EXAMPLES
# not ok exit; print "123 "; # ok exit if !$xyz; print "123 "; # not ok for ( 1 .. 10 ) { next; print 1; } # ok for ( 1 .. 10 ) { next if $_ == 5; print 1; } # not ok sub foo { my $bar = shift; return; print 1; } # ok sub foo { my $bar = shift; return if $bar->baz(); print 1; } # not ok die; print "123 "; # ok die; LABEL: print "123 "; # not ok croak; do_something(); # ok croak; sub do_something {} CONFIGURATION
This Policy is not configurable except for the standard options. SEE ALSO
Perl::Critic::Policy::ControlStructures::ProhibitPostfixControls AUTHOR
Peter Guzis <pguzis@cpan.org> COPYRIGHT
Copyright (c) 2006-2011 Peter Guzis. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license can be found in the LICENSE file included with this module. perl v5.16.3 2014-06-09 Perl::Critic::Policy::ControlStructures::ProhibitUnreachableCode(3)
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