libmozjs-38-dev 38.8.0~repack1-0ubuntu0.1 (amd64 binary) in ubuntu zesty

 SpiderMonkey is the code-name for the Mozilla's C++ implementation of
 JavaScript. It is intended to be embedded in other applications
 that provide host environments for JavaScript.
 .
 This package contains the header files and static library which is
 needed for developing Spidermonkey embedders.