Clean Code

The only valid measurement of code quality: WTFs/minute Readability is paramount.

The only valid measurement of code quality: WTFs/minute Readability is paramount. Clean code should be easily understood by other developers. It should be simple, elegant, and free of clutter. Strive to write code that clearly expresses its intent without the need for extensive comments. Use meaningful variable and function names, keep functions small and focused, and organize code logically. Maintainability enables evolution. Code that is difficult to change becomes a liability. Design your code to be flexible and modular so it can adapt to changing requirements. Follow principles like DRY (Don't Repeat Yourself) and SOLID to create loosely coupled, highly cohesive systems. Refactor mercilessly to improve code structure without changing behavior. Clean code pays off. While writing clean code takes more upfront effort, it saves significant time and headaches in the long run. Clean code is easier to debug, extend, and maintain. It enables developers to work more efficiently and reduces the risk of introducing bugs during changes. Make clean code a core part of your development practice.

The name of a variable, function, or class, should answer all the big questions. It should tell you why it exists, what it does, and how it is used. Use intention-revealing names. Choose names that clearly convey the purpose and behavior of variables, functions, and classes. Avoid single-letter names or cryptic abbreviations. Use pronounceable names that can be searched easily. For example: Bad: d (elapsed time in days) Good: elapsedTimeInDays Be consistent and precise. Use consistent naming conventions throughout your codebase. Be precise to avoid ambiguity - for instance, use meaningful distinctions like getActiveAccounts() and getActiveAccountInfo(). Avoid encodings or prefixes that add noise without value. Class names should be nouns, method names should be verbs. Name length should match scope. Use longer, more descriptive names for variables and functions with larger scopes. Short names are acceptable for small, local scopes. The length of a name should be proportional to its scope of use. Optimize for readability and understanding within the context where the name is used.

Functions should do one thing. They should do it well. They should do it only. Small is beautiful. Functions should be small - typically 5-10 lines long. They should fit on one screen and be instantly graspable. Extract code into well-named helper functions rather than writing long, complex functions. Small functions are easier to understand, test, and maintain. Do one thing well. Each function should have a single, clear purpose. If a function is doing multiple things, extract those into separate functions. Signs that a function is doing too much include: Multiple levels of abstraction Multiple sections or code blocks Numerous parameters Maintain one level…