react passing up state code example

Example 1: props and state react

function tick() {
  const element = (
    <div>
      <h1>Hello, world!</h1>
      <h2>It is {new Date().toLocaleTimeString()}.</h2>
    </div>
  );
  ReactDOM.render(    element,    document.getElementById('root')  );}

setInterval(tick, 1000);

Example 2: reading state react

function Example(props) {
  // You can use Hooks here!
  return <div />;
}