This when combined with “uni directional philosophy” of react it gives many good benefits. Single source of truth, state is read-only, changes made with pure functions. However, the hooks API has made the native React state API a lot more usable, and because it’s easier than the class model it replaces, I use component state a lot more than I used to when it’s appropriate. Comment below Eric Elliott is the author of the books, “Composing Software” and “Programming JavaScript Applications”. Nicely said. Since I was already using Redux in all my non-trivial apps, the choice was simple: Redux (almost) all the things! I say it's about time ... discussion, flexibility and "choices" are nice, but productivity and speed are nicer! If the APIs we are using are providing GraphQL then sure! That's where tests come into place. For example, imagine you have a component which handles permissions authorization for user actions: Now if you have a bunch of admin views that all require admin permission, you can create a higher-order component that composes in this permission requirement for all of them in with all your other cross-cutting concerns: The higher-order component API is convenient for this use-case, and it’s actually more concise than the hooks API (it requires less code), but in order to read the connect API, you have to remember that it takes mapStateToProps as the first argument, and mapDispatchToProps as the second argument, and you should be aware that it can take functions or object literals, and you should know the differences in those behaviors. “Should I use react-redux connect, or the hooks API?”. Redux packages gives us a certain recipe that we can follow and build rather than messing around with different react hook based stuff. When using these libraries, it’s good to know which to use when. It's an alternative for classic callbacks to parent at most. Instead, it enhanced the API for things we could already do with React. If you want your Redux state to be deterministic, use pure functions. The React.createContext function which creates the context; The Provider (returned by createContext) which establishes the “electrical bus” running through a component tree; The Consumer (also returned by createContext) which taps into the “electrical bus” to extract the data; The Provider is very similar to React-Redux’s Provider. This is all great news if you’d like to start using more local component state with the hooks API instead of Reduxing all the things. Definitely not happening any time soon :). Setting up a useReducer at the root of my app and then providing it with Context is a very simple way to get state management running. “Don’t you need Redux as a single source of truth?”. The primary selling points of React hooks are: Note that these fantastic benefits don’t really overlap with the benefits of Redux. The thing is, only more people are using this, there can be more contribution for bug fix or extra libraries. React hooks will serve you well in those cases. const [nameInput, setName] = useState(name); // `page` is a Higher Order Component composed of many, EricElliottJS - Online JavaScript Training. So I would learn React first, try to get a job, and have fun with Svelte in my spare time. State duplication - this is a general state management problem. Its only purpose is to make a single value accessible to a nested tree of React components. Redux aside, there are a ton of other very cool state management libraries like MobX, Recoil, Zustand, and many more.

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