How to make a function fire when a cell value in a table is changed by a formula?

Question

Google Apps Script

Tried using onEdit, onChange: they only fire if the value is changed by the user.

Answer 1

Viktor Familyevich , no way. This is a feature of the runtime environment.
But you have no reason to look for a trigger call under such conditions. Does something change this value? Subscribe to change this "something" or duplicate them.