I would say there is a proliferation of immature libraries and a dearth of mature JavaScript frameworks and libraries that meet the needs and desires of today's

I would say there is a proliferation of immature libraries and a dearth of mature JavaScript frameworks and libraries that meet the needs and desires of today's app developers. Mature frameworks are typically the work of many developers over several years, and they require time, money, and good product management, among other things. Five years ago it seemed a little off the wall to start a company whose customers were JavaScript programmers (I did it), but that's no longer the case, so I expect times will change. I hope people invent lots of new ways to do things, and I hope the go-to software of five years from now is not the go-to software of today. I hope we aren't using jQuery and Mongo in ten years.