I am the lead developer behind the Node.js CSV parser [0]. The project started in 2010, an hour before me leaving work for the weekend. It ended up being a long, very long journey that isn't over yet. The project grew incorporating many features I would never have expected, fixing corner cases the several hundred tests were not covering and teaching me a lot about coding and project handling. The bottom line, writing a correct CSV parser takes a little bit more than implementing an advanced string spliting function.

[0] https://csv.js.org/