Rails entry point for react webpacker application.js packs

application.js

import React from 'react'
import ReactDOM from 'react-dom'

const App = () => {
  return(
    <h1> Hello from React Webpacker </h1>
  )
}

document.addEventListener('DOMContentLoaded', () => {
  ReactDOM.render(
    <App />,
    document.getElementById('root'),
  )
})