And they throw huge amounts of resources at the web stack to do it. It might work for them, but I'm not sure that makes it powerful, performant, and manageable for those of us who aren't huge companies.
To me js and css are kind of manageable, a bit the same way as python: use strongly enforced linters forbidding anything ambiguous, do not jump every other day in a new sexy bandwagon, and do not let one line of code commited in without an automated test running it on a ci machine.
What I found harder to manage is the young FE devs themselves: for them it seems every new project, or every new view in the same project, is the opportunity to use a completely different, new toolset. Oh, and some new syntaxic sugar candies supposed to "save" a couple of keystrokes (which is the worst reason you can find to use a new syntax requiring its own tools). I find this very dangerous, especially when the github repos holding these tools are 3 months old.
This is because employers are demanding that candidates know the latest and greatest technologies (eg. looking for 5 years of experience in 1 year old technology). I'm an FE dev, and during my last round of interviewing 3-4 months ago I was asked about my thoughts on Redux, CSS Modules, Radium, Docker, GraphQL/Relay, ClojureScript/Om, etc.
If I need to be experienced with this stuff to stay employable because just doing my job isn't enough, then I'm going to learn it.
Have you looked at the microservices craze lately? You need a new one of these each time you scratch your head.
