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Refactoring in C#

To accomplish any functionality in an application, every developer has a unique style. Some of them write effective and less complex codes while some write more complex ones.

But, there has to be a standard that needs to be maintained so that the code is flexible and readable enough to make enhancements easily. However, the standard that needs to be followed is at the organizational level.

Whenever the code is developed, there can be just two scenarios — either it meets the expected standard or it doesn’t. In the latter case, it is necessary to modify the code to make it adhere to the standard without altering its functionality.

Also, when the developers encounter any technical issues such as memory leaks and slow processing, it is important for them to analyze the code and refactor it to improve the code and make sure the problem is being addressed. But what is refactoring and when exactly to refactor? This blog answers all such questions for you.

Table of contents

  1. What is Refactoring?
  2. When to Refactor?
  3. Different ways to Refactor
  4. Conclusion

What is Refactoring?

Refactoring is the process of improving the performance, readability, and complexity of the code by altering its internal structure and external behavior. In other words, it is an efficient technique for cleaning up the code in a controlled manner.

Refactor is not rewriting the code, as the crux of the code (i.e functionality) remains the same. It rather alters the way it has been implemented to meet the standard. For example, a simple refactoring would be renaming a variable to make it into a readable format.

It is a continuous process like the development task. As and when the new functionality is introduced, there is a possibility for the code to be refactored. So, when the code is checked in, it is necessary to look for code smells and fix them.

To the naked eye, it would be difficult to identify all the code smells. So to make it easier, some applications can be installed as extensions in Visual Studio. This then provides suggestions on what could be refactored. This makes the developer and Peer reviewer job much easier.

Let’s now see in detail when to refactor.

When to Refactor?

It is always recommended to look for code smells right after every development task has been completed. This ensures that the work is evenly distributed to the developers. But, when the project is not ready to concentrate on Non-Functional Requirements, then it is ideal to perform refactoring when a new set of major feature changes are made. It will be easy to develop a product on top of the cleaned-up code.

Similarly, it is also recommended to make the NFR changes, as soon as the code goes to production. This again ensures that there will be some breathing space for developers and the task can be accomplished on time.

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   Refactoring in C#