text: 'use strict';
  
  class Example extends React.Component {
      constructor(props) {
        super(props);
        this.state = {
          count: 0
        };
      }
    
      componentDidMount() {
        document.title = `You clicked ${this.state.count} times`;
      }
      componentDidUpdate() {
        document.title = `You clicked ${this.state.count} times`;
      }
    
      render() {
        return (
          <div>
            <p>You clicked {this.state.count} times</p>
            <button onClick={() => this.setState({ count: this.state.count + 1 })}>
              Click me
            </button>
          </div>
        );
      }
  }
  