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The basics of code reusability

As companies strive to be more efficient in their development processes, how they spend time creating their product has become increasingly important.

Time to market has become a crucial metric in releasing software systems. The quicker your product will be released, the more customers you can reach. However, challenges naturally occur that can affect your timeframe and resources.

Code reusability is a viable solution, where developers write code that can be used again for different purposes.

This article will examine the basics of code reusability and best practices to ensure its quality.

What is code reusability?

Code reusability refers to the ability to use previously written code for new applications.

Rather than starting from scratch every time, developers can reuse existing code to eliminate redundant work, reduce effort, and increase productivity. 

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Code reusability allows developers to create scalable and efficient software in less time. In addition, they save effort and resources by not having to rewrite and test a new set of code.

Types of code reusability

Code reusability can be categorized into various types based on its driving factor, source, and form or structure. Thus, here are some of the common types of code reusability:

  • Opportunistic reuse. Opportunistic code reuse is where developers use and combine codes that are not first designed together. When starting a project, the team may find opportunities to combine several components from their previous projects.
  • Planned reuse. Contrary to the previous type, planned reuse is where teams strategically create codes to be reused for future projects.
  • Internal reuse. In internal reuse, a team may reuse codes created by its in-house developers. This is a usual practice for firms that prefer to control certain aspects of their product, including their brand identity.
  • External reuse. Meanwhile, the company reuses codes from a licensed third-party component in external reuse. They can utilize their outsourced developers’ work, open-source codes, and other ready-made codes available.
What is code reusability

Code reusability advantages

Code reusability brings a number of advantages to the software development process. This includes the following:

Rapid development and release

Code reusability accelerates the development process. Instead of starting from scratch, developers can build upon existing components, reducing the time required to bring a product to market.

Consistency and maintenance

Reusing code promotes consistency in the application’s architecture, design, and functionality.

Using standardized and tested code snippets allows developers to maintain a cohesive structure. This makes it easier for developers to troubleshoot systems and deliver updates in an instant.

Increased efficiency

One of the significant advantages of code reusability is the boost in efficiency and productivity. When developers leverage existing code modules, they can focus more on solving unique challenges and creating innovative features rather than reinventing the wheel.

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Reduced code bloat

Code bloat happens when developers use excessive computer instructions in a system. This could result in slowed-down and buggy programs. 

Instead of duplicating code segments in multiple places, developers can create reusable code modules and call them whenever needed. This approach reduces its size, making it easier to maintain, debug, and optimize.

Enhanced user experience

Reusing well-tested code components, such as UI elements or functionalities, allows developers to maintain a cohesive design and behavior throughout the application.

Consistency in user experience improves the software’s overall quality, enhances user satisfaction, and reduces the learning curve for new users.

Standards to look for in quality reusable codes

Not all reusable codes are created equal. Basically, teams should maintain safety, reliability, and security in reusing codes to avoid further system issues.

Here are some standards to look for when searching for quality reusable code:

Modularity and abstraction

High-quality reusable code should be modular and abstract.

Your modules should encapsulate specific functionality connected with your application. Moreover, it should be easily plugged into more applications you will make in the future.

Documentation

Comprehensive documentation is crucial for reusable code. Well-documented code ensures that other developers understand its purpose, usage, and potential dependencies.

Flexibility and customizability

Reusable code should be flexible enough to adapt to various scenarios. It should allow developers to customize its behavior without needing significant modifications.

Minimal dependencies

Reusable code should have minimal dependencies on external components to ensure easy integration. This prevents potential conflicts and simplifies the integration process.

Testing and reliability

Quality reusable code should be thoroughly tested to ensure reliability and stability. At the same time, quality codes must maintain data security, especially in financial systems and other industries that have them.

Standards to look for in quality reusable codes

Best practices in ensuring code reusability

Fortunately, there are ways to ensure quality code reuse in your projects. Here are some of its best practices:

Follow design patterns

Utilizing established design patterns, such as Singleton, Factory, or Observer, can significantly enhance code reusability.

These patterns provide proven solutions to common UX design challenges you might encounter.

Use modular architecture

Breaking down the application into modules promotes reusability. Each module can encapsulate a specific set of functionalities, making integrating them into different projects easier.

Utilize version control systems

Version control systems like Git and package managers like npm or pip enable easy sharing and distribution of reusable code. This ensures that developers can access and integrate the latest versions of reusable components.

Review codes

Development teams must constantly conduct code reviews to maintain quality and reusability. Constructive feedback and discussions can lead to improvements and more effective reusable components.

Keep abreast of industry trends

Lastly, software development, including its tools, methods, and processes, can change with technological advancements.

Staying updated with the latest programming languages, frameworks, and technologies ensures you use modern tools that facilitate code reusability. Embracing new practices can streamline the process of creating reusable code.

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