Have you ever heard of React in the Javascript context? 
Nope not really familiar with either.
It's basically a Javascript library for building user interfaces.
Oh thats oddly specific.
It's pretty complicated too. It is maintained by Facebook as well as Instagram.
Oh instagram huh? interesting.
I just recently heard about it, as it allows developers to create large web-applications.
Well thats a lot of info i didnt know.