how do I pass null arguement?

[perl]

How do I pass a null variable as an argument? Sometime I may want a
wrapper sub as below:

Example,
...
sub procName
{ my $fname = $_[0];
  my $lname = $_[1]];
}

my procByLastName{ mySubA(null, "doe"); }
...

This is the error message:
Bareword "null" not allowed while "strict subs" in use

thanks,
-rkl



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