But please note that you can't use this to compare to '0', or any other value that evaluates to false in a boolean context, so you should only use it to compare it with constants. 

perl -wle 'if( ("0" || "") eq "0"){print "yes"} else { print "no" }'
no

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In reply to Re^2: complaint: always testing defined() by moritz
in thread complaint: always testing defined() by RaptorRex

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