/*

Best JavaScript quiz I have created so far :-)

*/

​var someObject = {
    foo: function() {
        /* ... */
    },
    bar: function() {
        /* ... */
    }
};

var test = Math.random() > 0.5;

/*

Question: What is the difference between the following calls?

*/

someObject[test ? "foo" : "bar"]();
(test ? someObject.foo : someObject.bar)();​​​