javascript - 如何使 forEach 循环等待正则表达式替换？

Question

我正在开发一个电子邮件网络应用程序，我尝试用用户的实际属性替换某些关键字(名字、姓氏、电子邮件)。目前，我正在循环查看收件人列表，并编辑电子邮件内容以通过替换关键字进行个性化。

我的问题: 在我可以使用正则表达式替换关键字之前，forEach 循环会跳过所使用的 promise 。如何暂停循环以确保在进行下一次迭代之前替换所有关键字？

recipientList.forEach(function (recipient) {

        let setContent = new Promise((resolve,reject) =>{

                        personalizedContent = replaceAll(emailContent, '[First Name]', firstName);

                        personalizedContent = replaceAll(emailContent, '[Last Name]', lastName);

                        personalizedContent = replaceAll(emailContent, '[Email]', recipient.EmailAddress.Address);

                        resolve(personalizedContent);
                    })

       setContent.then((personalizedContent)=>{
            var message = {
                "Message": {
                    "Subject": subject,
                    "Body": {
                        "ContentType": "html",
                        "Content": personalizedContent
                    },
                    "ToRecipients": [recipient],
                    "Attachments": []
                },
                "SaveToSentItems": "true"
            };
            postEmail(accessToken,message);
        })



    });

Answer 1

由于replaceAll不是异步操作，因此您可以删除Promises的使用，并且您的代码将以应有的同步方式工作

 recipientList.forEach(function (recipient) {

      let personalizedContent = replaceAll(emailContent, '[First Name]', firstName);
      personalizedContent = replaceAll(emailContent, '[Last Name]', lastName);
      personalizedContent = replaceAll(emailContent, '[Email]', recipient.EmailAddress.Address);
        var message = {
            "Message": {
                "Subject": subject,
                "Body": {
                    "ContentType": "html",
                    "Content": personalizedContent
                },
                "ToRecipients": [recipient],
                "Attachments": []
            },
            "SaveToSentItems": "true"
        };
        postEmail(accessToken,message);
});