Action Creation in Redux

Redux actions are simple objects that explain changes to the state. Developers define an object with a type property and any other data required to describe the change to make an action. Here’s an illustration of how to make an action in Redux:

Javascript




// Define a action creator function that
// takes test as an argument and returns
// an action object.
 
const addTodo = (text) => {
    return {
 
        // Describes the action to be taken
        type: 'ADD_TODO',
        text
    };
};


Getting Started with Redux

Redux is a popular state management library for JavaScript applications. It provides a way to centralize the state of an application in a single store, making it easier to debug, test, and reason about the state changes in the application. It helps to manage complex application states, making it easier to handle data flow and interactions.

In this article, we’ll go over the basics of Redux and explore how it simplifies state management.

The following fundamental concepts are discussed in this article:

Table of Content

  • Redux
  • Steps to simplify State Management using Redux
  • Store Creation
  • Action Creation
  • Dispatching Actions
  • Reducer Functions
  • Combining Reducers
  • Connecting to React Component

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Setting Up Redux in a React App

Store Creation Action Creation Dispatching Actions Reducer Functions Combining Reducers Connecting to React Component...

1. Store Creation in Redux

To build a Redux store, developers use the redux library’s createStore function and send in a root reducer as an argument. A root reducer is a collection of reducers that describe how the state in an application changes. Here’s an illustration of a store built in Redux:...

2. Action Creation in Redux

...

3. Dispatching Actions in Redux

Redux actions are simple objects that explain changes to the state. Developers define an object with a type property and any other data required to describe the change to make an action. Here’s an illustration of how to make an action in Redux:...

4. Reducer Functions in Redux

...

5. Combining Reducers in Redux

To dispatch an action and update the state, developers call the dispatch method on the store and pass in the action as an argument. Here is an example of dispatching an action in Redux:...

6. Connecting Components to Redux

...