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Wrong idioms

by McA (Priest)
on Mar 29, 2013 at 19:56 UTC ( #1026189=perlquestion: print w/replies, xml ) Need Help??

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  1. or download this
    sub readfile {
        my $filename = shift or return;
        ...
    }
    
  2. or download this
    my $filename = shift;
    return unless(defined $filename && $filename ne '');
    
  3. or download this
    my $filename = shift or return;
    

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Node Type: perlquestion [id://1026189]
Approved by marto
Front-paged by Old_Gray_Bear
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[1nickt]: perl -wE 'say for map { ... } 1..3;' # "Unimplemented at -e line 1" ... <c>perlsyn says that should throw a syntax error...
[karlgoethebier]: 1nickt: "Edge cases..." Yes, it seems so. Thanks Nick

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