It's one less thing to think about.
Anyway, for JavaScript there's the standard[1] and semistandard[2] projects. They are different from other style guides because they're standalone applications that would fail your tests if your files do not adhere to the standard (if set up correctly). Think of them as unconfigurable linters.
[1] https://github.com/feross/standard [2] https://github.com/Flet/semistandard