Refactoring is an essential part of software development, as it allows developers to update existing code in order to improve its readability, reduce complexity, and make the code easier to maintain. Through the process of refactoring, the structure of existing code is modified without altering its behavior. This is done by changing the code in small increments while ensuring that the code continues to work as expected. Refactoring helps to simplify code, reduce bugs, and improve overall performance. It is a critical part of software development, as it ensures that code is up to date and reliable.

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