If you are a web developer it’s added advantage if you learn AngularJS framework. It’s one of the most trending application of 2020.
See this link Edureka Angular Blog.
Angular 2 also in demand with ECMA 6 features. However other client side scripting like REACTJS is relatively young and trending very fast!
The benefit of AngularJS is complete framework however ReactJS is just View Library.
Hope this is helpful!!