![]() You also don't need a package like redux-thunk to handle asynchronous actions. The API is also relatively straight-forward to use once you got the hang of it (especially when using hooks, see part 2). It's built into React and you therefore need no extra third-party dependencies - a smaller bundle and improved project maintainability are the result. Indeed, there are reasons that hint towards React Context being better than Redux. # Will React's Context API replace Redux? Please see the finished code ("Resources" at the beginning of the article) as well as the video tutorial (also at the start of this page) for a full walkthrough and a working mini-project! That's how global state management works when using React Context instead of Redux. The methods will then run in the component though, hence the state will be updated in that component - and the updated state is then passed back into child components via the Context. Since we pass references to these methods into the Context object and this object is then accessible by all consumers of the context, we can call these methods from any component that is connected to our context. The part with the two methods is particularly interesting. We have methods to update the state, we got a default state property with some initial data and we then pass data from the state as well as references to our state-updating methods into our Context object (passed to value). In this snippet, we're working with state just as we would in a component that's not using Context at all. In a React app, you typically have a couple of actions or action creators, for example (with redux thunk being used to support asynchronous actions): to use it in React components)įor a more detailed explanation of how Redux works, please visit the official docs. Subscriptions to get data out of the global state (e.g. Reducer functions that contain the logic to change and update the global state (by returning a new copy of the old state with all the required changes)Īctions that can be dispatched to trigger a reducer function to run a global JS object you could say) which is not directly accessible or mutable It consists of four main building blocks:Ī single, centralized state (i.e. But Redux is particularly popular for React. Technically, Redux is not limited to usage in React apps - and indeed there are implementations in other technologies, too (e.g. ![]() The information whether the user is waiting for a Http request to finish "State" simply refers to data you need to render the user interface correctly. Redux is used to manage the state of a React app in a centralized place. ![]()
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