How to get a reference to a Unity object (C#)?

Question

C++ / C#

Good afternoon. There is the following hierarchy: main/canvas/pages/navigationBar . The navigation bar includes a few more components. How to get a reference to it from a script from another class bound to another object? Thank you.

Answer 1

There are many options. The simplest is to do in another script where you need to get a link, SerializeField of type NavigationBar and drag the navigation bar there in the editor.
There are all sorts of options with singletons, GetComponent, FindObject and more. But Unity-way - described above.