If I've written a sub or module which expects, say, three variables to be passed to it, what should it do when it gets two?

Consider CGI.pm as an exemplar. Return undef if an argument is missing and you can't substitute a reasonable default. die as a last resort.

In reply to Re: What Are The Rules For Subs And Modules When Fed Wrong Input by dws
in thread What Are The Rules For Subs And Modules When Fed Wrong Input by Cody Pendant

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