What's React?

This post originally appeared on Technically.

The TL;DR

React is a philosophy and framework for building web applications that use client side rendering.

Web apps are increasingly using client side rendering instead of server side(scary words! we’ll explain them)
Web developers use React to build dynamic web applications like Twitter
React’s philosophy emphasizes reusable components so you don’t rewrite code
The must-know basics and pieces of the React ecosystem: props, JSX, state, and React Native vs. React JS

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