Re^5: Empty string checking in output

One way (there are many 'data dumpers'). Note: you must pass a reference to the array to the Dumper function.

>perl -wMstrict -le
"use Data::Dumper;
 my @output = qw(1 2 foo);
 print Dumper \@output;
"
$VAR1 = [
          '1',
          '2',
          'foo'
        ];
[download]

See Data::Dumper.

Comment on Re^5: Empty string checking in output Select or Download Code

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Re^6: Empty string checking in output by Kumar Mantri (Novice) on Aug 18, 2011 at 13:38 UTC
Thank you,let me learn and try this..i just want to ask one question ,is there any mistake in my code regarding about not executing the else block?	[reply]
Re^7: Empty string checking in output by AnomalousMonk (Archbishop) on Aug 18, 2011 at 17:43 UTC
What code? Do you mean the code of the original posting of Empty string checking in output? If so, there is definitely a mistake as explained by toolic in Re: Empty string checking in output: the value of the `@output` array evaluated in scalar context (imposed by the comparison operator) and then stringified (for the string comparator) will never be anything other than a string like '0', '1', '2', etc., and so will never be anything other than not-equal to the empty string, and so the false clause of the conditional will never execute.	[reply] [d/l]