It gets unreadable for all but the most trivial of expressions, but it's perfect for assigning one of two values to a variable. Also useful in that area are 
                             # Use default when val is
my $var = $val || $default;  # ... false (= stringifies to '' or '0').
my $var = $val // $default;  # ... undefined. (Requires Perl 5.10.)

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In reply to Re^2: in search of a more elegant if then else by ikegami
in thread in search of a more elegant if then else by Anonymous Monk

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