hmm this article is a bit outdated; peg.js (mentioned in the article) has been abandoned by the maintainer for a few years now (and it never reached a stable 1.

hmm this article is a bit outdated; peg.js (mentioned in the article) has been abandoned by the maintainer for a few years now (and it never reached a stable 1.0 ); recently the project was picked up by another team under the name peggy.js https://github.com/peggyjs/peggy https://github.com/peggyjs/peggy