My favourite reason to use shift, that's not necessarily right, but right for me? I can't easily do my $x, $y = @_;
It's valid perl. It assigns a scalar. You will likely run into the bug right away, but who knows when, eh?
I can't do the equiv w/ shift in the form of...
my $x = shift;
my $y = shift;
Unless i do..
my $x = $_[0];
my $y = $_[1];
Now I have to worry about indicies. At least shift requires none.
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