TechInterviewNotes

‹ Library / C# Track

Generics, Constraints, and Variance

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Difficulty: Medium · 24 min

Generic type safety, constraints, covariance, contravariance, and the design trade-offs behind reusable C# APIs.

Prep paths

C# Interview Foundations: Types, LINQ, and ConcurrencyA practical C# interview path covering the type system, object-oriented design, generics, collections, LINQ, resource safety, async workflows, cancellation, and .NET memory management.