Hi! Have you ever heard of reactJS? It's a JavaScript library for building user interfaces. 
No, I don't know much about programming. When was it invented?
It was first deployed on Facebook's news feed in 2011. 
Can it be used on iPhone or Android?
React, was announced at Facebook's React Conf in February 2015 and open-sourced in March 2015.
On April 18, 2017, Facebook announced React Fiber, a new core algorithm of React framework library for building user interfaces. React Fiber was to become the foundation of any future improvements and feature development of the React framework.
On April 19, 2017, React 360 V1.0.0 was released to the public. This allowed developers with React experience to jump into virtual reality development.
On September 26, 2017,
React (JavaScript library)
React (also known as React.js or ReactJS) is a JavaScript library for building user interfaces. It is maintained by Facebook and a community of individual developers and companies.
React can be used as a base in the development of single-page or mobile applications, as it is optimal for fetching rapidly changing data that needs to be recorded. However, fetching data is only the beginning of what happens on a web page, which is why complex React applications usually require the use of additional