`Two-fer` or `2-fer` is short for two for one. One for you and one for me.

When X is a name or "you".

If the given name is "Alice", the result should be "One for Alice, one for me."

If no name is given, the result should be "One for you, one for me."

Go through the setup instructions for Javascript to

install the necessary dependencies:

Install assignment dependencies:

$ npm install

Execute the tests with:

$ npm test

In the test suites all tests but the first have been skipped.

Once you get a test passing, you can enable the next one by

changing `xtest` to `test`.

It's possible to submit an incomplete solution so you can see how others have completed the exercise.