According to a report from HackerRank the widest skill gap with IT talent plays out in JavaScript frameworks, particularly with React. More and more employers are seeking developers proficient in the framework, but the talent isn’t readily available just yet.
It should also be noted that AngularJS and Node.js are more heavily favored by developers. Spring and Django seem to gaining popularity with employers and developers alike but not quite as much as React. Visit HackerRank for the full breakdown.
Recently, I had the opportunity to meet with a client that was in the process of deciding on a front-end technology for their dev team to use. They already did quite a bit of research and formed some opinions about different technologies, and wanted to get our opinion about the way they evaluated their options. One point I made early on in our discussion was that there is no one “right” answer to the question of “which tool(s) should we use?”. 
Angular 2 is the hot new thing, but like any other new technology out there, documentation and examples are really sparse and there’s a lot of head scratching trying to figure out why things that seem like they should work…aren’t.
