<div id="app"></div>
const app = document.querySelector('#app');
const root = ReactDOM.createRoot(app);

const list = [
  <p key="e1">example 1</p>,
  <p key="e2">example 2</p>,
]

const example = <h1> Hello { list } </h1>;

root.render(example);
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External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. https://unpkg.com/react@18/umd/react.development.js
  2. https://unpkg.com/react-dom@18/umd/react-dom.development.js