Sounds like, as with Perl & PHP, if the Interpreter is installed on the Server then JS can run Sever-side. Is this what is meant by: ECMA compliant? I don't see a big market for this and personally, cannot see where the time & trouble to learn about and install the Interpreter is worth the effort.
I presume (but don't quote me ) that either SpiderMonkey, the C implementation, or Rhino, the Java implementation, would do the job? Are there other Interpreters, is this a growing/dwindling market, and does anyone know of Security concerns?
These are the links Jorge provided me, for anyone else wondering:
In looking at server-side technologies, you have to look at two things, object model and language. The object model is the underlying structure that allows you to run server-side program, and the language is what you use to program that server-side object model.