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my $left=$_[0]; my $right=$_[1];

which is the same as

my $left = shift @_; my $right = shift @_;

It is not the same at all. The first version doesn't modify @_. The second one does modify it. The difference is often very important. (For example, if you're planning on using goto.)

use Test::More; use Data::Dumper; sub func1 { my $left=$_[0]; my $right=$_[1]; goto \&Data::Dumper::Dumper; } sub func2 { my $left = shift @_; my $right = shift @_; goto \&Data::Dumper::Dumper; } my @args = qw( a b ); # Are they the same?? is( func1(@args), func2(@args), "they're the same!", ); done_testing();
perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'

In reply to Re^2: subroutine function by tobyink
in thread subroutine function by truthseeker66

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