Refactoring long methods for Readability and Reusability

Writing small functions and refactoring long methods into smaller ones can have numerous benefits for your codebase.

First, small functions are generally easier to understand and reason about than larger, complex methods. This is because a function that is short and focused on a single task is easier for developers to comprehend and understand its purpose and how it fits into the overall codebase. As a result, writing smaller functions can improve the maintainability and usability of your code. Additionally, small functions can be more flexible and reusable, as they can be easily combined and utilized in various contexts to solve different problems. In contrast, long, complex methods can be difficult to understand and may be less adaptable to changing requirements.

To refactor a long method into smaller functions, you can follow these steps:

Identify the different tasks that the method is performing.
Extract each of these tasks into a separate function, giving each function a descriptive name.
Move the extracted functions to a logical location in the codebase, such as a private method or another class.
Modify the original method to call the extracted functions as needed.
For example, the following method:

can be refactored into the following class:

and can be used as follows:

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