SICP was ported to JS though I'm not particularly keen on the result. https://sourceacademy.org/sicpjs/

The code is convoluted, in my opinion, because it tries to hue too closely to the Scheme code in the original giving some unnatural looking JS code as a result. For example:

  function member(item, x) {
    return is_null(x)
           ? null
           : item === head(x)
           ? x
           : member(item, tail(x));
  }

There are examples which have even more but that was the first one I came across clicking the TOC randomly. In Scheme it would be expressed something like this:

  (define (member? item set)
    (cond ((null? set) #f)
          ((equal? item (car set)) #t)
          (else (member item (cdr set)))))

While the parens cause some brains to segfault, the structure of this (how each condition ties to each result) is clearer than that JS mess.