Objects

Learn how immutability principles are achieved with objects.

Object.assign() can be used to copy all the key/value pairs of one or more source objects into one target object. The method receives the following parameters:

The target object to copy to.
One or more source objects to copy from.

Since our reducers need to create a new object and make some changes to it, we will pass a new empty object as the first parameter to Object.assign(). The second parameter will be the original subtree to copy, and the third will contain any changes we want to make to the object. This will result in a new object with a new reference that contains the key/value pairs from the original state, and any overrides needed by the current action:

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Introduction to Redux

Basic Redux Implementation

Cloning a Redux Boilerplate

Complete Redux Project

Creating a Store

Decorating the Store

Actions and Action Creators

Redux Thunk

Redux-Actions Library

Reducers

Avoiding Mutations

Introduction to Middleware

Your First Middleware

Middleware

State Management

Keeping a Normalized State

Persistence State

Real-World State

Server Communication

Moving Code from Action Creators

Error Handling

Server Communication II

Transforming Data

Chaining Requests

Managing Side Effects

Messaging Patterns

WebSockets

WebSocket Authentication

Testing

Testing Action Creators

Async Action Creators

Testing Reducers

Testing Middleware

Testing Async Middleware

Integration Tests

Evolution Of Redux

Final Assessment

Objects