How to understand what data has been updated in the updated method in vue.js?

Question

Vue.js

Good afternoon, how can I determine that specific data has been changed with the updated method? In the vue component
, Watch is triggered before the Updated method is called, and it is in this method of the vue component that you need to pull out the changes, there was an idea to store a global variable in a non-component, and change it in watch when data changes, and when updated, compare these variables - but looks like a crutch

Answer 1

Use Promise and about updating the component, do you want to wait for the redraw or do something before it, use vue next tick
Reference