Browser use

example use: in code cell

import React from "react";

import ReactDOM from "react-dom";

const App = () => < h1> Hi </h1>;

ReactDOM.render( < App />, document.querySelector("#root"));

will render Hi in iframe

 show( < h1> Hi </h1> ) 

is equivalent to

import React from "react";

import ReactDOM from "react-dom";

const App = () => < h1> Hi </h1>;

ReactDOM.render(<App />, document.querySelector("#root"));

if the arg of show() looks like JSX imports and render are done by the function