if you're declaring 1 variable, its convoluted and a mess to do 
my ($x)

my $x;
my $y;
my $z;

[download]
but if you're instantiating a bunch of items before an eval block / loop: 
my ( $x , $y , $z );

my (
     $x ,
     $y ,
     $z 
);

[download]
both look cleaner to read and have a slighty faster perfomance (though its really insignficant). you can bench to see.

also: if you're doing oop perl: 
sub function{
  my $self = @_;
}

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is bad form - what if an argument is missing/extra? 
sub function{
  my ($self) = @_;
}

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is better. because you might want 
sub function{
  my ($self , $arg1 , $arg2 ) = @_;
}

[download]

In reply to Re: my $x or my ($x) by nmerriweather
in thread my $x or my ($x) by tamaguchi

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