That looks like a babel problem, you are not transforming the jsx. Post
your babel config file.

On Mon, Jan 13, 2020 at 10:20 AM fugee ohu <fugee...@gmail.com> wrote:

> app/javascript/packs/index.js
>
> import React from 'react'
> import ReactDom from 'react-dom'
> import App from '../components/App'
>
> document.addEventListener('DOMContentLoaded', () => {
>    ReactDom.render(
>       <App/>,
>       document.body.appendChild(document.createElement('div')),
>    )
> })
>
> I get this error:
> SyntaxError: .../packs/index.js: Unexpected token (7:6)
>
>     5 | document.addEventListener('DOMContentLoaded', () => {
>     6 |    ReactDom.render(
> >  7 |       <App/>,
>        |       ^
>
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