javascript - 为什么事件在 Firefox 中未定义？

Question

这是我的javascript代码

 function filter(id, e) {
      if (!e) e = window.event;
      $(e.target).closest('.item').addClass('hidden'); 
      ...    
      ...    

 }

这是我的 HTML

    <div onclick='filter(1)'>Testing</div>

在 Chrome 中，此功能有效，但在 Firefox 中。

TypeError: e is undefined

Answer 1

Window.event

This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

它根本不是 Firefox 实现的东西。这不是您的代码逻辑的问题。