> I am missing something. In my simplistic reading, there are two leading Perl6 compilers; one (niecza) targets the CLR ... other (rakudo) targets Parrot ... [and soon] JVM ... I see no mention of a JavaScript backend
Indeed you are missing something. While you didn't see a mention of a JavaScript backend, it's plausible pmurias will have it done before jnthn completes the JVM port. And what about swarley's Go port?