path.join universal front - backslash not implemented

Node's version of path.join converts the front or backslash appropriately depending on the operating system. For example, windows uses a frontslash for its directories. And linux and mac use a backslash for their directories.

The issue is when coding on Windows, you must use a frontslash. But when deploying on Mac, it must be converted to a backslash. This presents a portability issue.

Node's "join" actually handles this quite simply using conditionals to determine which operating system the user is on. But this version does not handle the front/backslash problem. Is it possible to implement Node's version of "join" in this module?