As a React developer, you should be already familiar with the principle that state should not be mutated directly. You might be wondering what that means (most of us had that confusion when we started out). This tutorial will do justice to that: you will understand what immutable state is and the need for it. You’ll also learn how to use Immer to work with immutable state and the benefits of using it.

https://www.smashingmagazine.com/2020/06/better-reducers-with-immer/