Buggy Counter

buggycounter.jsx

class BuggyCounter extends Component {
  state = {
    counter: 0
  };
  handleClick = () => {
    this.setState({
      counter: this.state.counter + 1
    });
  }
  render() {
    if (this.state.counter === 5) {
  // Simulate an error!
  throw new Error('I crashed!');
}
    return (
      <div>
        <h1>{this.state.counter}</h1>
        <button onClick={this.handleClick}>+</button>
      </div>
    );
  }
};