Exploring C# 8: The Deep Dive

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" summary

C# 8 adds concrete types and syntax: IAsyncEnumerable<T> and await foreach for async streams (combined yield with suspended execution), nullable reference types with #nullable enable and IDE flow warnings, new pattern-matching forms (switch expressions, property/tuple/positional patterns), System.Range and System.Index with ^-from-end and slice syntax, local static functions to forbid implicit captures, using declarations for scope-based disposal, default interface methods requiring .NET Core 3.0 runtime, and target-typed new expressions; demonstrated in Visual Studio 2019 targeting C# 8 beta.

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" chapters (10)

1. 0:00Introduction and setup
2. 2:22Interface and type features
3. 7:19Developer perspective
4. 8:21Project configuration
5. 9:18Async streams
6. 14:47Nullable reference types
7. 16:50Pattern matching and ranges
8. 35:28Local functions
9. 35:50Using declarations and wrap-up
10. 44:07Final summary and resources

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