Writing my $book = Spreadsheet::ParseExcel->new()->Parse($filename); is equivalent to writing 
my $parser = Spreadsheet::ParseExcel->new();
my $book = $parser->Parse($filename);
undef $parser;

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I'd go with whichever you think reads better, or the original snippet. (I favor the original snippet, on the assumption that keeping the ParseExcel object alive for the duration of the scope has little or no measurable impact on performance or memory use.) BrowserUK nails this one. Keep the statements separate, so that you can error check them separately. If you're concerned about memory, you can always undef $parser;

In reply to Re: Style Question: Throwaway Objects by dws
in thread Style Question: Throwaway Objects by seattlejohn

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