发送消息取决于数组的长度

我在mongo地图集数据库中有示例文档时遇到问题：

{
    "_id": {
        "$oid": "5e517a946364cc48f0ccf1e7"
    },
    "firstName": "checkout1",
    "lastName": "",
    "companyName": "",
    "phoneNumber": null,
    "email": "[email protected]",
    "country": "",
    "adress": "",
    "postcode": "",
    "userId": "5daf414818d091616a0d917e",
    "orderedItems": [{
        "_id": "5e03b2072e0c98b9fa62388c",
        "id": 3,
        "title": "Blue shoes",
        "img1": "product4/1.jpg",
        "img2": "product4/2.jpg",
        "cost": 70,
        "color": "blue",
        "quantity": 5
    }],
    "createdAt": {
        "$date": "2020-02-22T19:01:40.228Z"
    },
    "updatedAt": {
        "$date": "2020-02-22T19:01:40.228Z"
    },
    "__v": 0
}

我想发送一条消息，确认购买的物品及其数量，如下所示：

...

    const {
       ...
email,
      orderedItems
    } = req.body;
    var user = await User.findOne({ email: email });
    let newCheckout = await Checkout.create({

      ...
      email,
      ...
      orderedItems,
      userId: user._id
    });
    const htmlEmail = `
    <div>Title of first ordered item: ${newCheckout.orderedItems[0].title}</div>
    `;

    const mailOptions = {
      from: process.env.MY_TEST_EMAIL_ADRESS,
      to: process.env.MY_EMAIL_ADRESS,
      subject: 'new message',
      replyTo: process.env.MY_EMAIL_ADRESS,
      text: process.env.MY_TEST_EMAIL_ADRESS,
      html: htmlEmail
    };
    transporter.sendMail(mailOptions, (err, info) => {});

...

我需要这部分代码：

const htmlEmail = `
        <div>Title of first ordered item: ${newCheckout.orderedItems[0].title}</div>
        `;

为了像在React中一样映射它，我可以将orderedItems数组映射到div元素，所以最后，结果消息看起来像这样（用户将获得所有有序项目标题，并且div元素的数量取决于长度的数组）：

<div>Item: ${newCheckout.orderedItems[0].title}</div>
<div>Item: ${newCheckout.orderedItems[1].title}</div>
<div>Item: ${newCheckout.orderedItems[2].title}</div>

我的主要问题是，如果没有Jade，Pug，Mustache等模板引擎，是否可以做到？