I used to be a AngularJS user, but it’s a very heavy tool for most projects. ReactJS was a leap in the right direction and I really enjoy using it. But VueJS is by far the most lightweight (usable) framework I’ve found.
ReactJS does require quite a bit of work to get your head around. Even then there is quite a bit of setup and boilerplate code. VueJS on the other hand feels like you’re writing a template with the minimal amount of code outside of the template.
It’s put perfectly on the vuejs FAQ:
But one issue with React (or JSX) is that your render function often involves a lot of logic, and ends up looking more like a piece of program (which in fact it is) rather than a visual representation of the interface.
Cross Site Policy
Luckily VueJS maintains a CSP branch that you can download.