> SICP is still the best introduction to computer science. The problem is the reliance on scheme/lisp languages to explain stuffs. it could be taught in almost anything that supports basic FP,it's even taught in JS !

The fact that Scheme uses Lisp is what makes SICP work at all. The course would be difficult or impossible to complete using most other languages. The keyword is: homoiconicity, the "code=data" property of Lisp.

Most of the course focuses on writing interpreters and compilers for Lisp and making variations on it (lazy evaluation, non-deterministic). This would be very painful if a non-homoiconic language is used.

And indeed, the "JavaScript version" you posted is very painful to read. It's difficult to understand how the data structures used by the interpreter are related to JavaScript code. And the code most definitely is not idiomatic JavaScript. I would not consider this an improvement over the original Scheme version.