jQuery 查找使用对象注册的事件处理程序 [英] jQuery find events handlers registered with an object

问题描述

我需要找出在对象上注册了哪些事件处理程序.

I need to find which event handlers are registered over an object.

例如:

$("#el").click(function() {...});
$("#el").mouseover(function() {...});

$("#el") 已注册点击和鼠标悬停.

是否有一个函数可以找出并可能遍历事件处理程序?

Is there a function to find out that, and possibly iterate over the event handlers?

如果通过适当的方法无法在 jQuery 对象上实现，那么在普通 DOM 对象上是否可能?

If it is not possible on a jQuery object through proper methods, is it possible on a plain DOM object?

推荐答案

从 jQuery 1.8 开始，事件数据不再可从数据的公共 API"获得.阅读这篇 jQuery 博文.您现在应该改用它:

As of jQuery 1.8, the event data is no longer available from the "public API" for data. Read this jQuery blog post. You should now use this instead:

jQuery._data( elem, "events" );

elem 应该是一个 HTML 元素，而不是一个 jQuery 对象或选择器.

elem should be an HTML Element, not a jQuery object, or selector.

请注意，这是一个内部的私有"结构，不应修改.仅用于调试目的.

Please note, that this is an internal, 'private' structure, and shouldn't be modified. Use this for debugging purposes only.

在旧版本的 jQuery 中，您可能必须使用旧方法，即:

In older versions of jQuery, you might have to use the old method which is:

jQuery( elem ).data( "events" );

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