SO answer http://stackoverflow.com/questions/10109176/orderi

The load order is depth first, but unfortunately the alphabetical sorting works on the file level only. So for example if you have the following structure:

* `client`
  * `cl.js`
* `common`
  * `co.js`
* `lib`
  * `li.js`
* `server`
  * `serv_nest`
     * `se_ne.js`
  * `se_a.js`
  * `se_b.js`

Then the load order on the server side would be:


1. `li.js`
1. `se_ne.js`
1. `se_a.js`
1. `se_b.js`
1. `co.js`

So **if alphabetical ordering worked on folder** level as well then the order would be:

1. `li.js`
1. `co.js`
1. `se_ne.js`
1. `se_a.js`
1. `se_b.js`

! Unfortunately this is not the case. !

Note: If anyone knows where this is documented please let me know (or if I am wrong)