OBJECT-ORIENTED-PROGRAMMING5 MIN READ
Push back on a Singleton request
Explain when Singleton is weaker than dependency injection for shared services.
Iris I architect 1 Clarify need 2 Name cost 3 Offer design Architecture moment 20 sec The request Feature flags are needed in many classes. A Singleton would make access easy, but tests need different flag states per scenario. The design decision affects coupling across the whole app. Framework 1 min Pattern tradeoff Singleton vs Dependency Injection
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