What is the best way to implement multi-select responses in AngularJS?

Question

Angular

You need to create a menu in which you can select from 1 to n items. Selecting certain items in the menu may open additional sub-items.
[x] Item 1
__[x] sub-Item 1
__[ ] sub-Item 2
__[ ] sub-Item 3
[x] Item 2
[x] Item 3
__[ ] sub-Item 1
__[x] sub- Point 2
What did I do. I described everything in Json and then for a very long time it was necessary and difficult to go through the points at the beginning (I set the "isSelected" item, then by sub-items and did the same). Then he also wrote a cycle of bypassing points and sub-points in order to collect where it was clicked.
Question. Maybe there is a simpler option. with a large nesting level, it is very difficult to get around everything. There are plugins or advise something.
I would very much like to describe everything and then read the finished result of clicking.

Answer 1

nested tree not satisfied?
google nested tree angular
there you can also move branches)