Naming, small functions, DRY, KISS, YAGNI, code smells, refactoring techniques, technical debt and code review practice.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- What is the primary goal of the DRY principle?
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Eliminate code duplication by ensuring each piece of knowledge has a single, authoritative representation.- What is a code smell?
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A surface-level characteristic indicating a potential deeper design problem that may require refactoring.- State the principle: a class should have only one reason to change.
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Single Responsibility Principle (SRP)- What does KISS stand for in programming?
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Keep It Simple, Stupid- What does YAGNI mean?
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You Aren't Gonna Need It - avoid adding features before they are actually needed.- Why should variable names be clear and descriptive?
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To make code self-documenting and reduce cognitive load for anyone reading or maintaining it.- What is technical debt?
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The cost of rework created by shortcuts or poor design choices, paid later with interest accrued.- What is the primary goal of code review?
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Catch bugs, share knowledge, ensure quality, and identify design issues before code reaches production.- When should you extract a method from existing code?
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When code does more than one thing, becomes hard to understand, or logic could be reused elsewhere.- What does cyclomatic complexity measure?
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The number of linearly independent paths through code, indicating complexity and testability difficulty.- Define cohesion in code.
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The degree to which elements within a module are closely related and work together toward a single purpose.- What is coupling in code architecture?
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The degree of interdependence between modules; high coupling makes code harder to modify and test.- What is the Boy Scout Rule?
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Leave code cleaner than you found it, even if you only made a small improvement.- Why should functions be kept small?
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Small functions are easier to understand, test, debug, and modify, and tend to have a single responsibility.- What is a magic number in code?
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A hard-coded literal value with unclear meaning; should be replaced with a named constant.
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