use-immer VS xstate

The use-immer package additionally provides a useImmerReducer ****function that allows you to make state transitions via direct mutation, but under the hood creates an immutable copy using Proxies in JavaScript.

Apply useImmer to the top component state and the dream is complete.

If you want to use mutating code while ensuring that the final update is immutable, I recommend checking out useImmer (and useImmerReducer) - it uses immer to track mutations and do them immutably for you.

If you find yourself using multiple objects or in your state, it may be worth it to install a library like immer. Immer provides a proxy object, referred to as a draft, so while your code appears similar to a direct mutation of state, a copy is created under the hood when an update when immer is used.

useImmer is also pretty nice too - useReducer is definitely the way if you only want specific ways to manipulate the object though (and useImmerReducer can make writing the logic for that easier too)

Within the component itself, I used a useImmer hook for the state, as it lets me write mutating code while ensuring that the actual update is immutable - but if you're only holding your array in the useState hook, a shallow clone would work fine. js setItems(items => arrayMove([...items], ...params))

React is a lot more strict, and for what we need we cannot leave the state in individual components, we need to pull it up to the App component. Making modifications to deeply nested state is a lot of nasty code, fortunately React world has a solution - immer and its hooks version useImmer.

XState is a powerful library with comprehensive documentation. Keeping the documentation handy while building your next app with XState will be invaluable.

XState is an excellent library that simplifies the utilization of actors in JavaScript applications. While this article focuses on using React, these principles apply equally well to other frameworks. In fact, they can be implemented anywhere JavaScript is executed.

In this article, I want to share a personal journey of discovery in the world of state management. My path led me to XState, a tool that I believe is the best choice for managing state in modern applications like React, Angular, Vue, and others. This isn't just a professional advice; it's a personal recommendation based on real-world experience.

You add the current user state to a React Context or state management library, read from it on the top bar, and write to it after a user signs in. Done. No big deal, right?

Lastly, I know that I've omitted many great tools like XState, React Query, and SWR. These tools are utilities that are very scalable in their own right, but aren't full replacements for a good state manager.