React

by Abdul Ahmad

HTML

<div id="app"></div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#app {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  transition: all 0.2s;
}

li {
  margin: 8px 0;
}

h2 {
  font-weight: bold;
  margin-bottom: 15px;
}

.done {
  color: rgba(0, 0, 0, 0.3);
  text-decoration: line-through;
}

input {
  margin-right: 5px;
}

React

const contentt = {};
function App() {
	const [content, setContent] = React.useState({});
  React.useEffect(() => {
    setInterval(() => {
      console.log('updating content');
      setContent(contentt);
    }, 2000);
  }, []);
	return <Box content={content} />;
}

function Box({ content }) {
  console.log('rendering box');
	return 'stuff';
}

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