Prefer duplication over the wrong abstraction

📰 Dev.to · NorfolkD

Learn when to prefer duplication over the wrong abstraction to improve code quality and maintainability

intermediate Published 23 Jun 2026
Action Steps
  1. Read Sandi Metz's article 'The Wrong Abstraction' to understand the concept
  2. Identify areas in your codebase where abstraction may be unnecessary or overly complex
  3. Apply the YAGNI principle (You Ain't Gonna Need It) to avoid premature abstraction
  4. Refactor code to prefer duplication over the wrong abstraction where necessary
  5. Test and review your code to ensure it is maintainable and easy to understand
Who Needs to Know This

Developers and software engineers can benefit from understanding the trade-offs between code duplication and abstraction to write more effective and maintainable code. This concept is relevant to teams working on complex software systems

Key Insight

💡 Prefer duplication over the wrong abstraction to avoid unnecessary complexity and improve code maintainability

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💡 Prefer duplication over the wrong abstraction to improve code quality #softwareengineering #coding

Key Takeaways

Learn when to prefer duplication over the wrong abstraction to improve code quality and maintainability

Full Article

Sandi Metz wrote The Wrong Abstraction in 2016. It keeps resurfacing — in high-scoring HN threads,...
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