Legacy Code Refactoring Features

HONG KONG - Jan. 10, 2023 - PRLog -- Refactoring legacy code  helps us to ensure that a codebase remains maintainable and effective over time.

What is Legacy code?

Legacy code refers to code that has been inherited from previous developers or software systems and is no longer actively maintained or supported. This type of code can be difficult to work with because it may not have documentation, may use outdated programming languages or frameworks, and may not adhere to current coding standards.

Rewrite and refactoring legacy code

Rewriting legacy code involves creating a new version of the code from scratch, while maintaining the same functionality as the original code. This can be a time-consuming and expensive process, but it can be necessary if the legacy code is no longer maintainable or if it is not compatible with new technologies or systems.

Refactoring legacy code, on the other hand, involves modifying the existing code to improve its structure and make it easier to understand and maintain, without changing its functionality. This can involve reorganizing the code, improving variable names and comments, and following current coding standards. Refactoring can be a more efficient and cost-effective way to improve legacy code, but it may still require a significant investment of time and resources.


Original code:

def calculate_total(items):
total = 0
for item in items:
total += item.price
return total

Refactored code:

def calculate_total(items):
return sum(item.price for item in items)

In this example, the original code calculates the total price of a list of items by iterating through the list and adding up the price of each item. The refactored code uses a built-in function (sum()) to achieve the same result in a more concise and readable way.

Refactoring can involve a wide range of techniques, such as renaming variables and functions to be more descriptive, reorganizing code to improve its structure and readability, and removing unnecessary or redundant code. The goal of refactoring is to make the code easier to understand and maintain, without changing its functionality.

Improvement and uniqueness of legacy code

Refactoring can often be a more efficient and cost-effective way to improve legacy code, particularly if the code is still in use and needs to be maintained. Many developers use legacy as a base, reference code to develop their new applications.

In this case, it may be necessary to uniquely code the application being developed. Mobile applications that are not unique may not pass the AppStore and Google Play check and get banned, and web applications created on template platforms may have problems with indexing in search engines.

For effective code refactoring and rewriting, you will benefit from the AppRefactoring tool (https://apprefactoring.com/), which automatically compares your code with legacy code and will help you write the unique code for your application.
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Page Updated Last on: Jan 10, 2023

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