When using vue to do a project, an exception is thrown:
DOMException: Failed to execute 'insertBefore' on 'Node': The node before which the new node is to be inserted is not a child of this node.
Description: This problem has been searched online before. It can be seen from many reference materials that it is related to v-if and v-show, but no detailed and reasonable explanation and solution have been given. I would like to raise the question here. , I hope fellow Taoists who have encountered the problem can give an explanation.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
After searching for information:
https://github.com/vuejs/vue-...
https://github.com/vuejs/vue/...
You can refer to the above link.
I speculate that when the page Dom has not been rendered, the data returned by the http request is inserted into an unknown node, causing this error.
Scenario: Click the button to request data from the server, update vnode, and update the rendering results.
to the outer layer of the template that needs to be rendered, click the button to start When requesting data, @click="isShow=false". When requesting data successfully, cb(isShow=ture) in the callback function. Ensure that when updating data, remove first and then insert *Solution: Add