What is the point of the constants in redux? : <p>For example from this example:</p>

<pre><code>export const ADD_TODO = 'ADD_TODO'
export const DELETE_TODO = 'DELETE_TODO'
export const EDIT_TODO = 'EDIT_TODO'
export const COMPLETE_TODO = 'COMPLETE_TODO'
export const COMPLETE_ALL = 'COMPLETE_ALL'
export const CLEAR_COMPLETED = 'CLEAR_COMPLETED'
</code></pre>

<p>It's not like you're saving characters. The variable name is exactly the same as the string, and will never change. I understand making constants if one day you were doing to do something like:</p>

<pre><code>ADD_TODO = 'CREATE_TODO'
</code></pre>

<p>but that never happens. So what purpose do these constants serve?</p>
