React中的奇怪語法錯誤

Question

因此，我在class App有自定義組件，但是仍然有問題。 肯定這很容易，但是對於像我這樣的人，我並沒有弄清楚。 基本上，我的代碼是：

（app.jsx）：

import React from 'react';
import '../styles/index.scss';

const EventCalendar = require('react-event-calendar');

const events = [
    {
        start: '2015-07-20',
        end: '2015-07-02',
        eventClasses: 'optionalEvent',
        title: 'test event',
        description: 'This is a test description of an event',
    },
    {
        start: '2015-07-19',
        end: '2015-07-25',
        title: 'test event',
        description: 'This is a test description of an event',
        data: 'you can add what ever random data you may want to use later',
    },
];

export default class App extends React.Component {
  render() {
    return (
      <div>
        <h1>It Works!</h1>
        <p>This React project just works including <span className="redBg">module</span> local styles.</p>
        <p>Enjoy!</p>

                <EventCalendar
                    month={7}
                    year={2017}
                    events={events}
                    onEventClick={(target, eventData, day)} => console.log(eventData)
                    />

      </div>
    )
  }
}

但是，當我運行時，出現此錯誤：

有人可以協助嗎？

非常感謝。

更新：我按照建議修復了語法錯誤，並且由於我試圖使用它來學習React中的新知識，所以我正在使用該項目的示例項目 ，但是現在如截圖所示：

Answer 1

Webpack構建錯誤有時可能很細微：

import React from 'react';
import '../styles/index.scss';

const EventCalendar = require('react-event-calendar');

const events = [
    {
        start: '2015-07-20',
        end: '2015-07-02',
        eventClasses: 'optionalEvent',
        title: 'test event',
        description: 'This is a test description of an event',
    },
    {
        start: '2015-07-19',
        end: '2015-07-25',
        title: 'test event',
        description: 'This is a test description of an event',
        data: 'you can add what ever random data you may want to use later',
    },
];

export default class App extends React.Component {
  render() {
    return (
      <div>
        <h1>It Works!</h1>
        <p>This React project just works including <span className="redBg">module</span> local styles.</p>
        <p>Enjoy!</p>

                <EventCalendar
                    month={7}
                    year={2017}
                    events={events}
                    onEventClick={(target, eventData, day) => console.log(eventData)} // the closing curly brace
                    />

      </div>
    )
  }
}