Explain Redux workflow.

Question

Accepted Answer

Redux is a state management library for JavaScript applications, providing a predictable and centralized workflow.

Redux follows a unidirectional data flow pattern.
The application state is stored in a single JavaScript object called the store.
Actions are dispatched to describe state changes.
Reducers are pure functions that specify how the state should change based on the dispatched actions.
Selectors are used to extract specific data from the store.
Middleware can be used to add additional functionality to the Redux workflow, such as logging or asynchronous actions.

Accepted Answer

Redux is a state management library for JavaScript applications that provides a predictable and centralized way to manage application state. It follows a strict unidirectional data flow pattern, which means that data flows in one direction through the application, and changes to the state can only be made through actions.

The typical Redux workflow involves the following steps:

Define the initial state: The initial state of the application is defined as an object in a reducer function. The reducer function takes two parameters, the current state and an action object, and returns a new state based on the action.
Define actions: Actions are plain JavaScript objects that represent changes to the state of the application. Each action has a type property that describes the type of change being made, and can also include additional data to be used by the reducer function.
Create action creators: Action creators are functions that create and return action objects. They simplify the process of creating and dispatching actions by providing a single interface for creating actions.
Create a store: The store is an object that holds the state of the application and provides a way to dispatch actions and update the state. The store is created using the createStore() method from the Redux library, and takes the reducer function as its argument.
Dispatch actions: Actions are dispatched to the store using the dispatch() method. When an action is dispatched, the store passes it to the reducer function, which updates the state of the application based on the action.
Subscribe to changes: Components that need to access the state of the application can subscribe to changes in the store using the subscribe() method. Whenever the state of the application changes, the subscribed components are notified and can update their own state or re-render as needed.

Explain Redux workflow.

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