in reply to Re^4: What is true and false in Perl? (undef,undef)
in thread What is true and false in Perl?
What do you think ref does?
In your example code, $a doesn't contain a reference. It contains a false value. ref does exactly this: "Returns a non-empty string if EXPR is a reference, the empty string otherwise."
Dave
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Re^6: What is true and false in Perl? (undef,undef)
by amartyaj (Initiate) on Nov 22, 2013 at 19:35 UTC |
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