DEV Community


Discussion on: New JavaScript features coming in 2020 that will surely rock your world!!

darkwiiplayer profile image

I'd say to 'know' javascript implies, at the very least, being handed any snippet of JS code (that's not written specifically to be unreadable) and being able to figure out what it does on a language-level without having to consult the documentation.

This is specially relevant in cases like the ?. operator, which is hard to google when encountered in the wild.