event.defaultPrevented

概述

返回一个布尔值,表明当前事件的默认动作是否被取消,也就是是否执行了 event.preventDefault()方法.

语法

bool = event.defaultPrevented 

例子

 if (e.defaultPrevented) {
   /* 事件的默认动作已被取消*/
 }

浏览器兼容性

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规范

• DOM 3 Events