我刚刚安装了 react-native-firebase v4.0，我试图检测何时有人打开了我从谷歌控制台发送的通知。
但是当我将文档中的示例放入我的代码中时，我得到了
解析错误：意外令牌，预期：（致命）
在“行动”
我在这里想念什么？我以前从未使用过这种语法。
componentDidMount() {
this.notificationOpenedListener = firebase.notifications().onNotificationOpened(notificationOpen: NotificationOpen => {
// Get the action triggered by the notification being opened
const action = notificationOpen.action;
// Get information about the notification that was opened
const notification: Notification = notificationOpen.notification;
});
}