这是很容易解决，但它会很好，如果它被包裹在全球阿贾克斯设置

This is easy enough to work around, but it would be nice if it was wrapped up in the global ajax setup

当我运行一个Ajax调用，我想知道哪些元素/事件触发的beforeSend选项的AJAX调用。

When I run an ajax call, I'd like to know which element/event trigger the ajax call in the beforeSend option.

是否有这样做的简洁的方式？

Is there a concise way of doing this?

推荐答案

在 beforeSend 的回调有两个参数： XMLHTT prequest 实例，并用当前AJAX调用的设置。

The beforeSend callback takes two arguments: the XMLHTTPRequest instance and the settings used by the current AJAX call.

因此​​，如果您通过触发因素和事件的上下文选项，他们将提供给 beforeSend 即使你在全局设置定义它：

Therefore, if you pass the triggering element and event in the context option, they will be available to beforeSend even if you define it in the global setup:

$.ajaxSetup({
    beforeSend: function(xhr, settings) {
        var element = settings.context.element;
        var event = settings.context.event;

        // Do something with 'element' and 'event'...
    }
});

$("selector").click(function(e) {
    $.ajax("url", {
        // your settings,
        context: {
            element: this,
            event: e
        }
    });
});