...

Using Immer for Temporary Mutations

Learn how to use Immer to resolve temporary mutations.

We'll cover the following...

- Example

A word from our friend Michel Weststrate, creator of MobX and Immer:

When writing reducers, it can sometimes be beneficial to use mutable objects temporarily. This is fine as long as you only mutate new objects (and not an existing state) and as long as you don’t try to mutate the objects after they have left the reducer.

Immer is a tiny library that expands this idea and makes it easier to write reducers. It is comparable in functionality to the withMutations() method in Immutable.js, but applied to regular JavaScript structures. With this approach, ...

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

Using Immer for Temporary Mutations