And Redux has already existed and still exists, fitting nicely into this state model. It works great! Take into consideration the fact that React Hooks replace class components and the render prop pattern and despite using them for state updates, it was always a React feature, even before React 16.8. Remember, leaving Redux in favour of React Context means that you lose integration with Redux DevTools, which is a really useful tool for debugging state issues.īesides, you can use both simultaneously with the help of the useReducer hook and React Redux hooks. Thanks to the useContext hook, you can provide information to the global store in a bidirectional manner and in a somehow nicer and cleaner way than the old Context API. Due to React 16.8 hooks (especially useState, useReducer, useContext ) you often may not need Redux, but when it comes to really complicated and expanded state, you should use that for code predictability.įor small to mid-sized apps, it’s really good to use Context. It should be quite clear right now, but it’s worth it to stress again that hooks and Redux are definitely not in each other’s way. This can be used for example for replacing reducers. Use useSelector if you need values from state. UseStore() returns a reference to the Redux store, but you shouldn’t use that too often. UseDispatch() returns a reference to the dispatch function from the Redux store: UseSelector() allows you to extract data from the Redux store state: React Redux offers a set of hooks which can be used as an alternative for connect(). Maintaining and debugging an app like this could potentially be a nightmare. adding the video to the user’s history,Īnd that’s just the tip of the iceberg! If the programmers didn’t have scalability in mind when creating the app, they may have a really hard time figuring out what’s going on when something goes wrong. React hooks API allows us to use state and lifecycle functionalities in functional components.changing the state of the video component itself,.In this app, just a single user action of viewing a video can influence many other components by: In an app like this, just about every element can be a component – the video screen, the buttons, the comment section, lists, login bar etc. Let’s say we’re building a simple video sharing and viewing app similar to YouTube. However, the more complex it gets, the more difficult it becomes to keep track of all the dependencies. This isn’t so bad when the app is simple. In a typical React app, when a user performs an action and changes a component’s state, it can have an impact on the state of any number of other components. For all intents and purposes, It’s the component’s memory. In the simplest terms, it is a JavaScript object that represents the part of a component that can change (for example, as a result of the user’s action). React state management – why is it so difficult?īeginning from React 16.8, every React component, both class and functional ones, can have a state.
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