Hello @stevekinney The test case description in https://github.com/stevekinney/dropbear/blob/master/tests/parse.test.js#L21 is thesame as the test case description in https://github.com/stevekinney/dropbear/blob/master/tests/parse.test.js#L4.
Shouldn't the test case in https://github.com/stevekinney/dropbear/blob/master/tests/parse.test.js#L21 be 'should return a token with the type of Identifier for name tokens'?
Thanks

Using 0 in a function, e.g. max, evaluates to NaN. Entering 0 in the REPL as a value expression evaluates to undefined. Empty string also evaluates to undefined.

I fixed it in my local copy by simply adding checks for 0 and an empty string to the evaluate function:

if (node.value) {
  return node.value;
} else if (node.value === 0) {
  return 0;
} else if (node.value === '') {
  return '""';
}

I guess I could submit a pull request, but I really just wanted to make sure you were aware in case you decided to redo this workshop or put it on somewhere else.