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Recognizing poor code

What is Poor Quality Code and how to identify it ?

Not only that poor quality code affects the productivity and cost of the software it also can have a negative impact on the morale of the development team, leading to frustration and decreased enthusiasm for the project. Here are some key indicators to determine if your codebase is suffering from poor quality:

  • How many buggs do you have ? Constantly encountering bugs is a clear sign of poor code quality.

  • Do your classes have too many dependencies on each other ? Do classes and methods lack a clear grouping in the same domain ?
    You are dealing with high coupling and low cohesion – major contributors to code complexity.

  • Are you using outdated or unsupported libraries and frameworks ? They can introduce security vulnerabilities and can affect the overall performance of your application.

  • Does making changes or adding features feels very hard like untangling a web of confusion ? It's a strong signal of poor quality.

  • When the same logic is repeated across different parts of the codebase, it not only makes the code longer and harder to understand but also increases the chances of introducing inconsistencies.

  • Is code difficult to test ? Complicated classes or methods can be challenging to test thoroughly. Writing comprehensive tests becomes a daunting task, and there's always uncertainty about covering all possible cases.

A tipical day in life of a software developer

A typical day involves implementing new features, bug fixes, attending meetings there is not a lot of time to improve code quality.
Interestingly, the developer might find themselves complaining about old code, only to realize later that they were the ones who wrote it.

Clean code is a responsibility of every developer

In the world of software development, achieving clean code is not just a goal – it's a daily responsibility for every developer.

How Clean Software looks like:

  • It has Consistency: It starts with namming, code conventions, formatting, package structure,...

  • It is easy to addapt: When developer takes acount that building blocks of the program (classes/ methods) do only one thing while remainig distinct and modular (low coupling - high cohesion), the code becomes esaily to addapt and eays to test.

  • Intentionality: Ensuring code is easy to understand, logical, and that its intention is clear.

How to start ?

To achieve clean code, it's crucial to address basic issue that often go unnoticed and it is Cognitive Complexity of code If code in method or class is hard to understand due to its overly complex it should be refactored. so that is it easy to read and understand - this is the first step.

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