I made a toy ECMAScript interpreter a couple of years ago: https://github.com/mras0/mjs https://github.com/mras0/mjs Not really notable, expect perhaps being t

I made a toy ECMAScript interpreter a couple of years ago: https://github.com/mras0/mjs https://github.com/mras0/mjs Not really notable, expect perhaps being the only one on the list with an ES1 mode? :) (Can't promise it's accurate though, as it was hard to find examples). Otherwise pretty boring (C++, hand-written parser, AST interpreter, ES1/ES3/ES5.1 support minus some regexp/timezone/locale stuff).