Writing
So You Think You Know C#? The StringBuilder Myth
StringBuilder suits growing results, but can cost more for fixed concatenation. Compiler output, allocations and benchmark checks explain when to choose it.
Topic
String Concatenation
Combining strings into a single result. Fixed expressions, repeated concatenation, formatting and compiler transformations determine the intermediate values, copying and allocations involved.
2 pages
Writing
Benchmarking .NET Applications
A benchmark tests whether a change improves the same operation. BenchmarkDotNet makes input choice, setup, timing and allocation costs visible for .NET code.