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  #1 (permalink)  
Old January 2nd, 2011, 09:50 AM
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Default question about (if)

hello

please see this :

if ($numeric) {
@file = sort { $a <=> $b } @file;
} else {
@file = sort @file;
}

what is it mean by the (if) ,we didnt put any oprator or something in the ()?
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Old January 2nd, 2011, 06:23 PM
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Implicit conversion to boolean. defined, not empty, not 0

P.S. Consider reading "Learning Perl" (no earlier than 4th edition) or "Beginning Perl"
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Old February 21st, 2011, 01:10 PM
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Default

The condition would be untrue if $numeric was '' or 0 or undef.

If you said :
Code:
if() {
   print "TRUE\n";
}
else {
    print "FALSE\n";
}
Your program would print "FALSE".
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