#!/usr/bin/perl
use strict;

my $hash_ref = &getHashRef();

# Check if hash reference has really values in it....
if ( $hash_ref ) {
    .....# do something
}


##</code><code>##


# Which one is correct .....
if ( %$hash_ref ) {
    ......
}

# OR

if ( $hash_ref ) {
    ........
}