ReactJS and React Native

ReactJS and React Native is excellent for increasing development speed.

React is based on an extended version of Javascript where html, variables and javascript is rendered to the final html-result.

ie.

const name = 'Josh Perez';
const element = <h1>Hello, {name}</h1>;

ReactDOM.render(
  element,
  document.getElementById('root')
);

Introduction to JSX:

https://reactjs.org/docs/introducing-jsx.html

This articles describes pros and cons when choosing development framework:

Pros and cons: ReactJS and React Native

The official ReactJS page is here:

https://reactjs.org/