hooks는 언제 쓰면 좋을까 about cs-wiki HOT 2 CLOSED

// before hooks
class Example extends React.Component {
  componentDidMount() {
    console.log('I am mounted!');
  }
  render() {
    return null;
  }
}

// after hooks
function Example() {
  useEffect(() => console.log('mounted'), []);
  return null;
}

// before hooks
componentDidMount() {
  console.log('mounted or updated');
}

componentDidUpdate() {
  console.log('mounted or updated');
}

// after hooks
useEffect(() => console.log('mounted or updated'));