How to animate vue-router when switching between same components?

Question

Vue.js

When transitioning between different components, the animation works, but when transitioning between the same, differing only in parameters, it does not.
https://codepen.io/anon/pen/EdyMXp
I'm interested in a way without additional variables in data, how to make it clear with them through watch.

Answer 1

Set a key for router-view depending on the route.
For example: . <router-view :key="$route.path"></router-view>