# With ternary
my $x = exists $hash{key}
      ? $hash{key}
      : 'default'

# Without
my $x;
if (exists $hash{key}) {
    $x = $hash{key};
}
else {
    $x = 'default';
}

##</code><code>##

# With ternary
my $x = $x > 5
      ? 5
      : $x + 1;

# With if

if ($x > 5) {
    $x = 5;
}
else {
   $x++;
}


##</code><code>##

my $x = $y > 5 ? ($y = 0) : ($y = 1);