What C# Programmers Need to Know About Pattern Matching
summary
C# 7 pattern matching cuts common boilerplate by combining selection, assignment and evaluation into one construct: it replaces is/as casts and nested ifs with type pattern cases, adds guard expressions for extra checks, and introduces the discard operator to ignore matched values. Examples include simplifying WPF control-reset code, rewriting FizzBuzz using tuples, and a Roslyn-based search tool that finds EF Core sites where null checks vanish; unit tests still pass and performance impact remains to be measured.
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chapters (5)
- 0:00Start
- 2:33What is Pattern Matching?
- 18:35Real Examples
- 32:37Other Languages
- 48:47When should you use pattern matching?
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