Redux In A NutShell. - Redux don't need Redux.
Redux
A JavaScript state management library.
Which is 90% convention and 10% library.
When different components of the app needs to share information back and forth, things become very messy very quickly.
Philoshopy of Redux is to keep a single source of truth instead of each component managing their own internal state.
And this dramatically simplifies the state managment proccess.
Redux is based on 3 core principles:
Action, Reducer, and State
Remember when I said Redux is 90% convention. Its these 3 concepts. These concepts are not Redux specific.
Their is a saying that “Redux don’t need Redux”.
To understand what it means, let’s take a look at Actions and Reducers.
**Action**: Is an object with type & payload as key. Which is dispatched.
**Reducer**: Is a pure function which returns a new state, based on action’s type and payload. Pure function is the key here.
See, in React there is a hook called useReducer, so with combination of useReducer and useContext, you can achieve the same behaviour as Redux without actually using Redux.
That’s where the saying comes in. (Redux don’t need Redux)
Infact you can implement your own Redux library in just 24 lines of code. I have linked the repository down below. And make sure to give it a star while you are at it.
Here is the complete flow.
Dispatch an action.
Reducer returns a new state based on action type and payload.
Redux store is updated and the app is synced.
The 10% which is the actuall library are the helper methods and performance optimization techniques provided by Redux.
So, that was Redux in a nutshell.
Repo - Basic and minimal implementation of Redux: https://github.com/Swastikyadav/Minim...
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