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← Theory library
C# (.NET) theory
C# 12/13, .NET 8/9, Span<T>, ValueTask, LINQ, and CLR internals.
Practise in the Code Lab →
Easy
1. CLR, Garbage Collection & Value vs Reference Types
Memory models in .NET.
2. LINQ (Language Integrated Query)
Functional declarative querying over collections.
Medium
3. Async / Await & Task Parallel Library (TPL)
Non-blocking asynchronous I/O and ValueTask.
Hard
4. Modern C# (Records, Pattern Matching, Spans)
C# 11–13 modern language features.
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