So basically the JS built-in container and prototype semantics are totally stupid, broken and confusing. I already knew this. Apparently underscore is a commu

So basically the JS built-in container and prototype semantics are totally stupid, broken and confusing. I already knew this. Apparently underscore is a community-driven "stdlib" that implements more functionality and saner container classes, and has more freedom to evolve since it's not part of the core JS language. And the justification for using a single-character name is that it's basically a de facto part of the stdlib?