We know that our Redux-connected React components need to talk to a Redux store, but we don’t know or care which Redux store that is when we define the component. The actual Redux store is injected into the tree at runtime using the React-Redux component. The React-Redux library is the official UI binding layer that lets React components interact with a Redux store by reading values from Redux state and dispatching actions. So, when most people refer to “Redux”, they actually mean “using a Redux store and the React-Redux library together”. Redux also uses middleware as a way to extend the capabilities of the Redux store, including handling side effects.
This state can be accessed by all the children nested inside Provider. Consumer is every component that is accessing or modifying the state from Context Provider. If someone would ask me, what’s the most important piece of any website. You can think of Redux as one global event bus which takes any events (actions) and processes them into a new state based on the action’s payload and the previous state. So Context is what may or may not replace Redux, not React hooks. The one thing that hooks don’t give us at all is any kind of enhanced debugging like Redux DevTools or time travel debugging.
– works out of the box, no need to waste time reinventing the wheel
I.e. for static values and then propagate updates through subscriptions. It’s not ready to be used as a replacement for all Flux-like state propagation. We know that the child component needs a value of a certain type, but it doesn’t try to create or set up that value itself.
My personal opinion is that if you get past 2-3 state-related contexts in an application, you’re re-inventing a weaker version of React-Redux and should just switch to using Redux. As I said earlier, it’s critical to understand what problems a tool solves, and know what problems you have, in order to correctly choose the right tool to solve your problems. One problem with the “Context vs Redux” discussions is that people often actually mean “I’m using useReducer to manage my state, and Context to pass down that value”. But, they never state that explicitly – they just say “I’m using Context”. That’s a common cause of the confusion I see, and it’s really unfortunate because it helps perpetuate the idea that Context “manages state”.
Are Hooks slow because of creating functions in render?
Sadly, most of this “debate” stems from confusion over the purpose and use cases for these two tools. If you are already familiar with Redux, then my solution what is redux for should feel very similar with just a few small differences. We will develop simple middleware for global scope, and we will manage all API calls with axios.
In this article we will convert an app which uses Redux to use vanilla React alongside the useReducer and useContext hooks. While React has always had state management built-in as one of its core features, it didn’t provide an easy way to solve the three items mentioned above. With the introduction of Hooks, all three of those key features that Redux provides can now be done using the built-in functionality that ships with React. Let’s start working on the first example demonstrating this new state management technique. Let’s start creating the project so that you can have practical knowledge of how it all works. Lastly we return the globalState snapshot and the dispatch as any hook would.