Sometimes code can go bad faster than guacamole left on the table after a couple of hours. Code refactoring is cleaning up and revamping the underlying code behind the curtain, so it runs cleaner without changing how it functions for end-users.

Everything on earth tends to decay after a certain amount of time. Bananas turn to mush. Bread turns moldy. Guacamole turns brown. At least you can make bread out of those mushy bananas, but even that can also go bad after a certain amount of time. Software code can also turn and start to “smell” musty after a while. The term “code smell” is an actual thing. Old, long-winded, unnecessarily-repetitive lines of code can start to malfunction, decay, and cause problems. And because of the increasing complexity of interactions between various lines of code in different apps, this process of code decay can happen quickly. This is why regular software updates to improve and streamline code are essential. And that is just where code refactoring comes in.

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