Refaktoryzacja

Refaktoryzacja, also known as code refactoring, is the process of restructuring existing computer code—changing the factoring—without changing its external behavior. This practice is used to improve nonfunctional attributes of the software, such as its readability, maintainability, and performance. Refactoring is a key aspect of software development and is often used to address technical debt, which accumulates as software evolves.

The primary goal of refactoring is to enhance the internal structure of the code without altering its functionality. This can involve renaming variables, extracting methods, consolidating duplicate code, and improving the overall design of the software. Refactoring is typically performed in small, incremental steps to minimize the risk of introducing bugs.

There are several techniques used in refactoring, including:

- Renaming: Changing the name of a variable, method, or class to make it more descriptive and understandable.

- Extract Method: Taking a piece of code and moving it into a separate method to improve readability and reusability.

- Consolidate Conditional Expression: Simplifying complex conditional logic to make the code easier to understand.

- Replace Temp with Query: Replacing temporary variables with method calls to reduce redundancy and improve clarity.

Refactoring is an essential practice in agile software development methodologies, where continuous improvement and adaptability are key principles. It helps developers maintain a clean and efficient codebase, making it easier to add new features, fix bugs, and improve performance over time. However, it is important to approach refactoring with caution, as it can sometimes lead to unintended side effects if not done carefully. Therefore, it is often recommended to perform refactoring in conjunction with thorough testing to ensure the integrity of the software.