我如何知道哪个元素从js中触发事件？ [英] How can I know which element fire the event from js?

问题描述

我有这样的事情：

$('#eventFire').dblclick(function(){ 
         EventHandler.dblclickListener();
});   

我希望EventHandler监听双击事件，我希望EventHandler知道页面中的哪个元素是火这个事件，我怎么能这样做？谢谢。

I want the EventHandler listen the double click event, and I want the EventHandler know which element from the page is fire this event, how can I do so? Thank you.

推荐答案

事件对象作为第一个参数传递给您的处理程序，如下所示：

The event object is passed as the first argument to your handler, like this:

$('#eventFire').dblclick(function(e){ 
  //e.target fired the event, this refers to the #eventFire element
});

所以在处理程序中， e.target 可能是处理程序或子项（从中冒泡）的元素，以及此将引用处理程序所在的元素，在这种情况下 #eventFire 。

So inside the handler, the e.target could be the element with the handler or a child (from which the even bubbled), and this will refer to the element the handler is on, #eventFire in this case.

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