No, it has very little to do with v8 or any runtime. Those parsers run on any decent and recent enough runtime, including browsers and Node.js. If you look at t

No, it has very little to do with v8 or any runtime. Those parsers run on any decent and recent enough runtime, including browsers and Node.js. If you look at the actual code, they use basic APIs in the JavaScript language that you can find in almost any other language.