Questions about this topic? Sign up to ask in the talk tab.

Perl/Basics/Boolean Logic/Helper Natives/Exists

From NetSec

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

The exists native applies specifically to hashes and hash references. 

print "This user has an age.\n" if exists $user->{'age'};
 
Retrieved from "http://nets.ec/index.php?title=Perl/Basics/Boolean_Logic/Helper_Natives/Exists&oldid=8084"