> Perl subroutines keep parameters and variables local by default
No they don't.
You have to explicitly tell them to do so.
$foo = 10;
do_stuff();
print "foo is now $foo\n";
sub do_stuff {
$foo = 12;
}
or even:
@foo = 1 .. 10;
do_stuff_with(@foo);
print "foo is now <@foo>\n";
sub do_stuff_with {
$_++ foreach @_;
}
(Yes, I know this is because of pass by reference).
Tony
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