为什么 Firefox 说 window.event 是未定义的?(添加事件侦听器的调用函数) [英] Why Firefox says that window.event is undefined? (call function with added event listener)

问题描述

我在这部分遇到了麻烦:

I have a trouble in this part:

var ex = {
  exampl: function(){
    var ref=window.event.target||window.event.srcElement; // here
    alert(ref.innerHTML); // (example)
  }
}

这个函数是这样调用的:

This function is called this way:

document.body.childNodes[0].addEventListener('mouseover',ex.exampl,true);

只有 Firefox 说 window.event 没有定义...

Only Firefox says that window.event isn't defined...

我不知道该怎么做才能让它发挥作用.它在 webkit 浏览器和歌剧中运行良好(我无法在 MSIE 中检查它，我也不关心它).

I don't know what to do, to make it work. It works very well in webkit browsers and opera (I can't check it in MSIE and I don't care about it).

为什么会这样?

推荐答案

尝试使用传递的参数(在本例中名为 e)获取事件.我对此进行了测试，Chrome 支持 window.event 和 e.

try getting the event using the parameter passed (named e in this case). i tested this and both window.event and the e is supported in chrome.

尝试检查两者，以存在者为准

var ex = {
  exampl: function(e){

    console.log(window.event);
    console.log(e);  

    //check if we have "e" or "window.event" and use them as "evt"
    var evt = e || window.event    

  }
}

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