Delegates & Iterators in C#: interview exercises

Delegates & Iterators in C#: 5 test-checked interview exercises (A closure that keeps state), each beside a worked example, with tests as you go. Free.

1. A closure that keeps state
2. Compose functions
3. Memoize a function
4. An endless iterator
5. A lazy extension method

Each exercise pairs a worked example with a twin problem to solve in a real editor; the tests run the moment you do. Progress is saved in your browser, and in your account if you sign in.

More C# topics

• Strings
• Collections & LINQ
• Dictionaries & Sets
• Classes & Records
• Exceptions & Disposal
• Async & Generics
• Practical

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