如何在不去parentNode的情况下删除父元素？

Question

Im just wondering in order to remove a parent, you need to go to its parentNode. such as:

 div.parentNode.removeChild(div);

What happens if div has no parents? How can you remove div without going to its parents?

Answer 1

If a div element doesn't have parent, there is no place to remove this div from, so your div element doesn't exist in the page. It's safe to use div.parentNode.removeChild(div); because if the div element doesn't have a parent, it is already removed, or just never added to the page.

Answer 2

No need to go to the parent. Just use remove .

div.remove();

That will remove the exact node.

This is not supported in older browsers so you would need a polyfill for them as defined on this page: http://devdocs.io/dom/childnode/remove