What is React
React makes it painless to create interactive UIs. Design simple views for each state in your application, and React will efficiently update and render just the right components when your data changes.
Declarative views make your code more predictable and easier to debug.
Build encapsulated components that manage their own state, then compose them to make complex UIs.
Learn Once, Write Anywhere
We don’t make assumptions about the rest of your technology stack, so you can develop new features in React without rewriting existing code.
A Simple Component
React components implement a
render() method that takes input data and returns what to display. This example uses an XML-like syntax called JSX. Input data that is passed into the component can be accessed by
Check out more on the official React website.
Also, you can check out the official React Tutorials.