How to sort nested levels in a table?

Question

Vue.js

Good afternoon!
There is a table from the library for Vue - element-ui.
It sorts only the top levels.
I need it to sort and nested levels, please help.
And it is this library that is needed))

By default, it sorts sortable from the back.

https://codepen.io/bomermaid/pen/NWRVKbO

Answer 1

You, of course, added the default-sort property for the plate? And it didn't help? If so, then you will have to prepare the sorting BEFORE transferring the data to the table.