notificationFactory.js

class PushNotification {
 constructor(sendTo, message) {
   this.sendTo = sendTo;
   this.message = message;
 }
}
 
class EmailNotification {
 constructor(sendTo, cc, emailContent) {
   this.sendTo = sendTo;
   this.cc = cc;
   this.emailContent = emailContent;
 }
}
 
// Notification Factory
 
class NotificationFactory {
 createNotification(type, props) {
   switch (type) {
     case 'email':
       return new EmailNotification(props.sendTo, props.cc, props.emailContent);
     case 'push':
       return new PushNotification(props.sendTo, props.message);
   }
 }
}
 
// usage
const factory = new NotificationFactory();
 
// create email notification
const emailNotification = factory.createNotification('email', {
 sendTo: 'receiver@domain.com',
 cc: 'test@domain.com',
 emailContent: 'This is the email content to be delivered.!',
});
 
// create push notification
const pushNotification = factory.createNotification('push', {
 sendTo: 'receiver-device-id',
 message: 'The push notification message',
});