Writing
To LINQ or Not to LINQ
Repeated work can hide inside a short LINQ query. A customer-filtering benchmark separates string conversions, lookup choices, iteration and changed behavior.
Topic
Hash Sets
Collections of distinct values organized for hash-based membership checks. Equality comparers, mutation and set operations determine their behavior and the work required for lookups.
2 pages
Writing
So You Think You Know C#? LINQ
LINQ rewrites can add work while removing repetition. Customer filters expose query projections, lookup choices and why benchmarks must compare equal results.