is there anything it can’t do?
Why JavaScript is sexy?
Armina Mkhitaryan

Absolutely. It can’t do systems programming (OS kernels and device drivers). C is the principal language.

It can’t do high-performance graphics and video games. C++ is absolutely king here.

It can’t do enterprise business computing (ERP, ERM, CRM, ECM, SCM, etc.). Java and C++ rule.

It can’t do cloud computing. Languages like Java, Scala, and Go rule.

It can’t do industrial automation like controlling silicon manufacturing.

It can’t do numerical/scientific computing, esp. on supercomputers. C++, Python, and Fortran rule.

It can’t do financial applications like for banks and insurance companies (where C++ and Python rule).

I could go on and on.