How to access the parent component?

Question

JavaScript

I don’t even know if I asked the question correctly, but oh well ...
Here I have an App.vue component in it, I import the Navbar and Content components:

The content component contains all entries, respectively, and I import the PanelUser component into the Navbar component.
For example, in the PanelUser component there will be a method that will have to change the content of the page, how can I do this? How to contact a parent?

Answer 1

First read this: https://en.vuejs.org/v2/guide/components.html#%D0%...
then this: https://en.vuejs.org/v2/guide/components-edge-case ...
and then this: https://ru.vuejs.org/v2/guide/state-management.html and https://vuex.vuejs.org/ru/