Pinia notes
Pinia is a new state management library to adapt the Composition API feature in Vue 3.
The differences between Pinia and Vuex are:
Firstly, module mechanisms are different: In Pinia, every module is an independent store. Therefore, there are no modules and namespaced in Pinia. Instead, we use different stores when using different modules.
Then, Pinia rewrites their devtool implement. As a result, no mutations exists in Pinit. We only need to call actions to change the state. Talking to state, you can even change state without accessing actions. I don't recommend it, though.
Thirdly, you import store instances when you want to import store instead of using strings.
Finally, you can use setup functions to arrange store in order to integrate with composition API.