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I always run into the problem of the default case when I use that -- what if $function isn't a key in %functions? The error message "Undefined subroutine &main:: called" can be very difficult to figure out.

And the straightforward fix isn't all that pretty:

($functions{$function} || $functions{default})->();
But I admit that I still use it. With comments, if there is any chance that someone with a capacity to do me bodily harm might read the code.

In reply to Re^3: What I Most Recently Learned in Perl, But Should Have Already Known by sfink
in thread What I Most Recently Learned in Perl, But Should Have Already Known by liverpole

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