I think it's really good advice. I was relegated exclusively to the backend for a while and so I had a terrible understanding of some of those concepts. Spendin

I think it's really good advice. I was relegated exclusively to the backend for a while and so I had a terrible understanding of some of those concepts. Spending some time on Rails led to inevitable tangential learning of HTTP and REST, which really opened my eyes about the bigger picture. Same thing about JavaScript, as you said, it's the language of the web and needs to be mastered. I was pretty abstracted from it for the longest time, but just yesterday a website I had to use was misbehaving and I managed to track down the issue right away with the Chrome tools. It's really empowering, although I'm still far from being proficient.