Being object-oriented and reusable always

This may seem difficult for a small, single-page application in which only a few things are happening, but this is not the case. The classes are easy to handle, and the code is always clear. Also, the classes separate the application logic from the views. This make things more logical. In the earlier days when structure code was used and a bunch of functions had to be created either in the view files or in a separate file, this would have been too easy. However, when applications got more complex, it got more difficult to handle.

Always try to create loosely coupled classes to make them more reusable in other applications. Also, always perform a single task in each method of the class.