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Re: if statement question

by nithins (Sexton)
on Dec 14, 2012 at 06:57 UTC ( #1008783=note: print w/replies, xml ) Need Help??

in reply to if statement question

use strict; ## scalar has not been initialized here the value in $result is undef my $result; print "hi" if ($result); ### scalar has been initialized and the value here is 12 $result = 12; print $result if($result);

In 1st ,if condition looks for the value of a variable "$result" in this case its just declared its not been initialized hence if is evaluated as false and doesn't print "Hi"

In second, if condition looks for the value of a variable, its present & value is 12 , then if is evaluated as true and it print's "hi".

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