Might be nice to make this more readable.

Could do something like:
```
$C = function(rank, suit) { return new Card(rank, suit); };
```
or
```
$H = function(stringOfCardIdentifiers) {
  // implementation is left to the student to turn $H("3D,4C,5C,6D,8C,10S,QS") into the cardArray[0]
};
```