This is a JavaScript code snippet that we used for our blog post https://rubygarage.org/blog/things-vue-takes-from-react-and-angular at RubyGarage. This is an example of rendering functions & JSX support implementation in React.

renderFunctionDemoReact.js

import React from 'react'

const Demo = () => {
  const sayHi = () =>
    alert('Hi.')

  return (
    <span onClick={sayHi}>Say hi!</span>
  )
}

export default Demo