On Tue, Oct 14, 2003 at 03:59:16PM -0700, [EMAIL PROTECTED] wrote:
> Can someone shorten this upper routine?
>
> sub toUpper
> { my $z = shift;
> $z =~ tr/a-z/A-Z/;
> return $z;
> }
sub to_upper { uc shift }
> Also in a slightly different scenario, how can i change the value of the
> parameter itself with a sub.
Work with the elements of @_ directly. That is, don't copy them
to lexical variables, as you did above with "my $z = shift".
> $a="ca";
> toUpper($a); #change the $a value itself
> print $a; #I want it to print "CA"
sub to_upper { $_ = uc for @_ }
--
Steve
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