I used Tcl briefly to build an interface way back with Tcl/Tk, and it is a terrible language. "Everything is a string" is not what you want in a solid programmi

I used Tcl briefly to build an interface way back with Tcl/Tk, and it is a terrible language. "Everything is a string" is not what you want in a solid programming environment for larger projects. It's a LISP-like gimmick, but without the advantages of LISP. That said, plain JS is not a good fit for larger projects, either. It really needs TypeScript for that. But it does have some very fast engines.