带有回调和参数的Javascript函数

我在尝试添加回调时遇到了一些基本JS函数的问题，该回调需要使用params运行另一个函数

这是我的电子邮件功能：

function sendEmail(template, to, cc, bcc, callback, optional=null){

// Define vars needed
var body = '',
    subject = '';

// Based on the template..
switch(template){

    case 'privateNote':

        // Define the subject
        subject = 'Tool Request - Private Note Added';

        // Define our body
        body += 'Hello, <br /><br />';
        body += 'A new private note has been added to Request #' + requestID + '.<br/><br/>';
        body += 'To visit the request, click the following link: <a href="' + window.location.protocol + "//" + window.location.host + "/tool/Request2.php?id=" + requestID + '">' + window.location.protocol + "//" + window.location.host + "/tool/Request2.php?id=" + requestID + '</a>.';
        body += '<br /><br />';
        body += '<em>Message created by ' + userFirst + ' ' + userLast + '</em>';

}

// Send our email
$.ajax({
    url: "../resources/Classes/class.email.php",
    type: "POST",
    cache: false,
    data: {
        from: "noreply@domain.com",
        to: to,
        cc: cc,
        bcc: bcc,
        subject: subject,
        body: body
    },
    error: function(err) {
        alert(err.statusText);
    },
    success: function(data) {
        // Handle Callback
        callFunction(callback);
    }
});
}

// Callbacks
function callFunction(func) {
    func();
}

// Reload the page
function refresh(){
    location.reload('true');
}

sendEmail('privateNote', toArray, '', '', refresh, obj);

var remove = sendEmail('privateNote', toArray, '', '', refresh, obj);

正如预期的那样，这一切都很好，但我面临一个问题

有一个部分，我需要同时发送两封电子邮件，一封给添加到请求中的人，一封给从该请求中删除的人

我想做的是：

var remove = sendEmail('privateNote', toArray, '', '', refresh, obj);

// Trigger Email to those who are added to the request
// However, I was trying to send a the other email with params as a callback instead of refreshing the page.

sendEmail('privateNote', toArray, '', '', remove, obj);

这样做的问题是，它似乎在不等待一个完成的情况下同时启动了这两个程序，从而导致了一些异步问题

---

有没有正确的方法？我知道这可能不是处理电子邮件的最佳方式，但到目前为止，当一次只处理一封电子邮件时，一切都很顺利。

这会立即调用

sendmail（）

函数：

function sendEmail(template, to, cc, bcc, callback, optional=null){

// Define vars needed
var body = '',
    subject = '';

// Based on the template..
switch(template){

    case 'privateNote':

        // Define the subject
        subject = 'Tool Request - Private Note Added';

        // Define our body
        body += 'Hello, <br /><br />';
        body += 'A new private note has been added to Request #' + requestID + '.<br/><br/>';
        body += 'To visit the request, click the following link: <a href="' + window.location.protocol + "//" + window.location.host + "/tool/Request2.php?id=" + requestID + '">' + window.location.protocol + "//" + window.location.host + "/tool/Request2.php?id=" + requestID + '</a>.';
        body += '<br /><br />';
        body += '<em>Message created by ' + userFirst + ' ' + userLast + '</em>';

}

// Send our email
$.ajax({
    url: "../resources/Classes/class.email.php",
    type: "POST",
    cache: false,
    data: {
        from: "noreply@domain.com",
        to: to,
        cc: cc,
        bcc: bcc,
        subject: subject,
        body: body
    },
    error: function(err) {
        alert(err.statusText);
    },
    success: function(data) {
        // Handle Callback
        callFunction(callback);
    }
});
}

// Callbacks
function callFunction(func) {
    func();
}

// Reload the page
function refresh(){
    location.reload('true');
}

sendEmail('privateNote', toArray, '', '', refresh, obj);

var remove = sendEmail('privateNote', toArray, '', '', refresh, obj);

由于

sendmail（）

不返回任何内容，

remove

是

undefined

要使其成为正确的回调，请将其包装在

函数（）中。

：

---

这会立即调用

sendmail（）

函数：

function sendEmail(template, to, cc, bcc, callback, optional=null){

// Define vars needed
var body = '',
    subject = '';

// Based on the template..
switch(template){

    case 'privateNote':

        // Define the subject
        subject = 'Tool Request - Private Note Added';

        // Define our body
        body += 'Hello, <br /><br />';
        body += 'A new private note has been added to Request #' + requestID + '.<br/><br/>';
        body += 'To visit the request, click the following link: <a href="' + window.location.protocol + "//" + window.location.host + "/tool/Request2.php?id=" + requestID + '">' + window.location.protocol + "//" + window.location.host + "/tool/Request2.php?id=" + requestID + '</a>.';
        body += '<br /><br />';
        body += '<em>Message created by ' + userFirst + ' ' + userLast + '</em>';

}

// Send our email
$.ajax({
    url: "../resources/Classes/class.email.php",
    type: "POST",
    cache: false,
    data: {
        from: "noreply@domain.com",
        to: to,
        cc: cc,
        bcc: bcc,
        subject: subject,
        body: body
    },
    error: function(err) {
        alert(err.statusText);
    },
    success: function(data) {
        // Handle Callback
        callFunction(callback);
    }
});
}

// Callbacks
function callFunction(func) {
    func();
}

// Reload the page
function refresh(){
    location.reload('true');
}

sendEmail('privateNote', toArray, '', '', refresh, obj);

var remove = sendEmail('privateNote', toArray, '', '', refresh, obj);

由于

sendmail（）

不返回任何内容，

remove

是

undefined

要使其成为正确的回调，请将其包装在

函数（）中。

：