Set b to true if the string s is empty, false otherwise
b = s.is_empty()
(def b (nil? s))
b = s.empty();
final b = s.isEmpty;
b := s == ""
boolean b = s.equals("");
b := (s = '');
use strict;
my $b = $s eq '';
b = s == ''
b = s.empty?
No security, no password. Other people might choose the same nickname.
