Would it be possible to have an update video because stuff is getting deprecated.

class Counter extends React.Component {
  constructor () {
    super();
    this.state = { score: 0 };
  }
  render () {
    return (
      <div className='counter'>
        <button className='counter-action decrement'>-</button>
        <div className='counter-score'>
          {this.state.score}
        </div>
        <button className='counter-action increment'>+</button>
      </div>
    );
  }
}

function Player (props) {
  return (
    <div className='player'>
      <div className='player-name'>
        {props.name}
      </div>
      <div className='player-sore'>
        <Counter />
      </div>
    </div>
  );
}

Player.propTypes = {
  name: PropTypes.string.isRequired
};