编辑：以下方法仅适用于jQuery< 1.7

您可以在本文中找到很多有趣的提示和技巧：你可能不知道的关于jQuery的事情。

它似乎jQuery使用 数据 存储事件处理程序：

您可以访问所有事件处理程序
绑定到元素（或任何对象）
通过jQuery的事件存储：

  //列出绑定事件：
 console.dir（jQuery （'#elem'）。data（'events'））; 

 //记录所有事件的所有处理程序：
 jQuery.each（$（'＃elem'）。data（'events'），function（i，event）{
 jQuery.each（event，function（i，handler）{
 console.log（handler ['handler']。toString（））; 
}）; 
}）; 

 //您可以看到在某些事件上将发生
 //的实际函数;伟大的调试！ 
 

With jQuery you can bind functions to an event triggered on a DOM object using .bind() or one of the event handler helper functions.

jQuery have to store this internally somehow and I wonder if is it possible given a DOM object, to find out which events have been bound to the object, and access those functions etc. The desired return result could look something like this:

{
  click: [function1, function2],
  change: [function3],
  blur: [function4, function5, function6]
}

Edit: the method below works only in jQuery < 1.7

You can find a lot of interesting tips and tricks in this article: Things you may not know about jQuery.

It seems that jQuery uses data to store event handlers:

You can access all event handlers bound to an element (or any object) through jQuery’s event storage:

// List bound events:
console.dir( jQuery('#elem').data('events') );

// Log ALL handlers for ALL events:
jQuery.each($('#elem').data('events'), function(i, event){
    jQuery.each(event, function(i, handler){
        console.log( handler['handler'].toString() );
    });
});

// You can see the actual functions which will occur
// on certain events; great for debugging!