So after a time learning and practicing, I realized there are some ways to get rid of multi-layered if-else nested conditions.
I have been working with WordPress for a while and one thing that irritates me is that the functions.php contains a lot of codes. This makes the file looks messy and hard to follow. Check out from here some methods to improve this.
In general, code refactoring refers to the process of changing bad codes into cleaner, purposeful, human-readable, reusable code in order to be cost effective, easy to maintain and collaborate, and probably a better performance.