>>> testJSaddle $ eval "['Hello', 'World'][1]" World >>> testJSaddle $ array ["Hello", "World"] !! 1 World >>> testJSaddle $ eval "['Hello', null, undefined, true, 1]" Hello,,,true,1 >>> testJSaddle $ array ("Hello", JSNull, (), True, 1.0::Double) Hello,,,true,1