planetproto/exercises/040_property_assignments/problem.md

A Workshop for understanding JavaScript prototypes

Property Assignments
====================

What happens if you update a property that already exists in the prototype? Let's see:

```js
var alien = {
	kind: 'alien'
};

var zippy = {};
zippy.__proto__ = alien;

zippy.kind = 'zippy';

console.log(zippy.kind); //=> 'zippy'
// zippy now has a 'kind' property

console.log(alien.kind); //=> 'alien'
// alien has not being modified
```

New/updated properties are assigned to the object, not to the prototype.
Note that the property `kind` now exists in both `alien` and `zippy`.

Challenge
---------

Follow the instructions in the boilerplate file created. 
A file 040.js with the necessary boilerplate has been created for you.