What is "Vue.js." and is it fully launched now?

VueJS is one of the top most famous JavaScript framework now, its prograssive JS framework. Its created by Evan You. Yes It is lunched already & currently on version 2.

vue.js is one of the most popular Javascript frameworks ,to be precise one of the top3 frameworks . with Angular and React , because it's more friendly with Beginners 

Vue.js is JavaScript Framework, that helps to build single page and fast applications.

In short, it's a progressive framework for building user interfaces using HTML and JavaScript.

Vue JS is JS framework type and it is using mostly in view part component and DOM manipuation. Unless Angular, React it creates DOM replica while integrate in markup generate.

Basm allah alrahman alrahim

is an open-source JavaScript framework for building user interfaces

Vue.js is a JS framework just like React and Angular and other frameworks out there, it's much simpler than React and Angular and it's powerful just like them, it's in-demand framework nowadays, it's already launched and hit the version 2, I heard of the coming version 3 in which it will be based on typescript as well.

Hope this helps you :)