You may be crushed to learn that, while I did stop working on standard JS in Sept. 1997 when we finished ES1 (started in Nov. 1996), turning to found Mozilla and then Firefox to restart the browser market, which enabled restarting JS standards at Ecma in 2005, I then led the ES4 effort, forged the Harmony peace between ES3.1 and ES4 factions, and continued to work on the standardized language in committee through 2018 March.

BigInt was my last collaboration (with Daniel Ehrenberg). It's in ES2020 and all the engines now. Don't be bitter!