Let's say I have the following object:
var a = {
    x: {
        y: 'Good job!'
    }
    z: 'Nice try...'
}
and the following strings:
var key1 = "z";
var key2 = "x.y";
Is there a way to access the value of y by using the key2 variable?
console.log(a[key1]) will work because it will get evaled to a['z'], but a[key2] won't because it will get evaled to a['x.y'] which is not valid.
