Best practices

The following files points to the demo project Chapter9/BestPractices.

So far, we have created some working code, but it could look a lot better, and be less error prone as well. There are steps we can take to improve the code, those are:

• Get rid of so-called magic strings and rely on constants
• Add a default state to your reducer
• Create so-called action creators
• Move everything into a dedicated module and split up it up into several components

Let's have a look at our first bullet point. Given the type of actions we perform on our jediList, we can create a constants.ts file for them, like so:

// jedi.constants.ts

export const ADD_JEDI = 'ADD_JEDI';
export const REMOVE_JEDI = "REMOVE_JEDI";
export const LOAD_JEDIS ="LOAD_JEDIS";

Now, when we refer to these actions we can instead import this file and use these constants instead, decreasing...