Creating Clean Code: Uncle Bob's Lesson 1 for Software Developers

Rules for Writing Clean Code

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  The fundamental rule for a function is that every line of a function should be at the same level of abstraction and that level should be one below the name.
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  The first rule of functions is that they should be small, and the second rule is that they should be even smaller than that.
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  A function does one thing if you cannot meaningfully extract another function from it.
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  "Extract until you cannot extract anymore" - the importance of breaking down code into smaller, more objective functions for better readability and maintainability.
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  Functions should be short and have a maximum of 3 arguments to make them easy to understand and maintain.
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  "A function that returns a value should not have a side-effect."

Importance of Clean Code

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  The increasing reliance on software systems in everyday life raises questions about the safety and responsibility of those who write the code.
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  Cleanliness of code should be a core value for software developers.
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  Good code matters for powerful reasons, including the ability to maintain productivity and avoid messy systems that slow down development.
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  Keeping code clean and orderly is crucial for adding new features in a reasonable amount of time and avoiding productivity slowdowns caused by messy code.
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  "Clean code reads like well-written prose and always looks like it was written by someone who cares."

Responsibility of Programmers for Clean Code

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  Uncle Bob has an impressive career in the IT industry and is one of the authors of the agile manifesto and the manifesto for software craftsmanship.
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  Your job as a programmer is not just to make code work, but to write code that others can maintain and use effectively.
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  The importance of writing clean code is to make it easy for others to understand and modify, without wasting time poring over it for 30 minutes.