Re^3: my $x or my ($x)

[Rhandom]

in reply to Re^2: my $x or my ($x)
in thread my $x or my ($x)

The only warning I can give is that using an undef in the list will throw warnings (errors?) in older versions of perl:
my (undef, $foo, undef, $bar) = @array;

Never fear. Just move your my.

(undef, my $foo, undef, my $bar) = @array;

This is particularly more useful in cases where you already have a declared variable.

my $foo = "ab";
(my $avar, $foo) = ($foo =~ /(.)(.)/);

[benizi]

I prefer slicing. Instead of:

my (undef, $foo, undef, $bar) = @array;

or

(undef, my $foo, undef, my $bar) = @array;

do:

my ($foo, $bar) = @array[1,3];

e.g.

my ($size, $mtime) = (stat $filename)[7,9];