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StringConcat.md

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String concatenation

Doing simple string concat, deciding between:

  • str1 + str2
  • string.Concat(str1, str2)
  • string.Create(...)
BenchmarkDotNet=v0.13.1, OS=Windows 10.0.19044.2006 (21H2)
Intel Core i7-7600U CPU 2.80GHz (Kaby Lake), 1 CPU, 4 logical and 2 physical cores
.NET SDK=6.0.401
  [Host]     : .NET 6.0.9 (6.0.922.41905), X64 RyuJIT
  DefaultJob : .NET 6.0.9 (6.0.922.41905), X64 RyuJIT
Method Mean Error StdDev Ratio RatioSD Gen 0 Allocated
StrConcat 16.07 ns 0.222 ns 0.197 ns 0.96 0.02 0.0191 40 B
StrPlus 16.77 ns 0.303 ns 0.269 ns 1.00 0.00 0.0191 40 B
StrCreate 17.68 ns 0.290 ns 0.257 ns 1.05 0.02 0.0191 40 B