Undervalued: The Most Useful Design Pattern
summary
Explains how value objects now get first-class support in Ruby and shows concrete examples of modeling money, IDs, and validation objects that reduce coupling and eliminate repetitive DB-heavy tests. Demonstrates replacing mocks with simple immutable objects to make tests faster and more maintainable, measures CPU and memory gains from avoiding ActiveRecord bloat, and combines value objects with the factory pattern to generate predictable, composable domain data that ships to production.
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chapters (5)
- 0:00Introduction to design patterns
- 5:00Why most patterns are overlooked
- 12:28The overlooked pattern explained
- 20:47Real-world applications
- 27:57Summary and key takeaways
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