C++
↔ Low-Level General-Purpose Programming Language extends C with Class
References
Extensible
↔ Node.js can extend via native C/C++ add-onslibtorrent
↔ FOSS Bittorrent Client, C++, lib for many clientsSpidermonkey
↔ JS Engine to power Firefox, built in C++Type Cast
↔ aka type conversion of one type to another, in C/C++ - equiv to (implicit) type coersion or (explicit) reassignment in JS