未捕获的类型错误：无法读取 null javascript 的属性“parentNode”

2013-08-23

20864

javascript

此代码应使元素在被拖放到另一个元素（称为 cookiemonster）上时从列表中消失

addEvent(cookiemonster, 'drop', function (e) {
  if (e.stopPropagation) e.stopPropagation();

  var el = document.getElementById(e.dataTransfer.getData('text'));
  el.parentNode.removeChild(el);
  return false;
});

1个回答

创建一个像这样的辅助变量

addEvent(cookiemonster, 'drop', function (e) {
    if (e.stopPropagation) e.stopPropagation();

    var el = document.getElementById(e.dataTransfer.getData('text'));
    var aux = el.parentNode;
    aux.removeChild(el);
    return false;
});

eventHandler

2014-03-26