<p>There are 4 columns you have to keep in mind when you refactor your code. This list is in the order of priority you have to keep while refactoring your code.</p>
<ol>
<li>Readability</li>
<li>modularity : How easy to reuse?</li>
<li>Efficiency : How fast does your code run?</li>
<li>Length : lowest priorty. If you ignore upper 3 items, putting the length on your first priority is bad. If shortening your code makes upper 3 better, then you can make your code length short</li>
</ol>


There are 4 columns you have to keep in mind when you refactor your code. This list is in the order of priority you have to keep while refactoring your code.

1. Readability
2. modularity : How easy to reuse?
3. Efficiency : How fast does your code run?
4. Length : lowest priorty. If you ignore upper 3 items, putting the length on your first priority is bad. If shortening your code makes upper 3 better, then you can make your code length short

Code Refactoring summary