Undervalued: The Most Useful Design Pattern
summary
Argues that value objects are underused and, with Ruby's first-class support, become a practical tool for real systems. Shows concrete code patterns combining value objects with the factory pattern to build domain models that bridge bounded contexts, reduce duplicated conversion logic, and make tests smaller and faster. Demonstrates a working refactor that simplifies interfaces, noticeably speeds test suites, and yields measurable runtime improvements in object-heavy paths.
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chapters (6)
- 0:00Introduction to design patterns
- 3:27Why most patterns are overlooked
- 9:51The overlooked pattern explained
- 17:49Common misconceptions
- 23:17Real-world applications
- 29:27Summary and key takeaways
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