ValueCollections 2.0.0

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package ValueCollections --version 2.0.0
                    


                    

                
NuGet\Install-Package ValueCollections -Version 2.0.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="ValueCollections" Version="2.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="ValueCollections" Version="2.0.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="ValueCollections" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add ValueCollections --version 2.0.0
                    


                    

                
#r "nuget: ValueCollections, 2.0.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package ValueCollections@2.0.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=ValueCollections&version=2.0.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=ValueCollections&version=2.0.0
                    


                            Install as a Cake Tool

ValueCollections

NuGet

A set of collections in C# implemented as ref struct to minimize heap allocations.

ValueList

An implementation of IList<T> using spans and array pools.

using ValueList<int> numbers = [];

for (int n = 0; n < 100; n++) {
    numbers.Add(n);
}

using ValueList<int> evenNumbers = numbers.Where(number => number % 2 == 0);

Console.WriteLine(string.Join(", ", evenNumbers.ToList()));

Benchmarks

Method Mean Error StdDev Gen0 Allocated
SmallListOfStruct 17.71 ns 0.103 ns 0.091 ns 0.0255 80 B
SmallValueListOfStruct 14.50 ns 0.038 ns 0.034 ns - -
SmallListOfClass 25.31 ns 0.153 ns 0.135 ns 0.0306 96 B
SmallValueListOfClass 17.22 ns 0.047 ns 0.044 ns - -
LargeListOfStruct 20,962.48 ns 99.370 ns 92.951 ns 41.6565 131400 B
LargeValueListOfStruct 9,663.62 ns 37.740 ns 33.455 ns - -

Gotchas

ValueList should be disposed after use, otherwise the internal rented array will not be returned to the pool.

using ValueList<string> strings = ["a", "b", "c"];
using ValueList<string> whitespaceStrings = strings.Where(string.IsNullOrWhiteSpace);
using ValueList<string> shortWhitespaceStrings = whitespaceStrings.Where(str => str.Length <= 10);

Special Thanks

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 is compatible.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

  • net8.0

    • No dependencies.

  • net9.0

    • No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
5.5.0 173 12/7/2025
5.4.0 193 11/14/2025
5.3.0 330 6/12/2025
5.2.0 177 5/29/2025
5.1.0 154 5/22/2025
5.0.0 180 5/22/2025
4.2.0 168 5/8/2025
4.1.0 177 5/8/2025
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3.2.0 172 4/1/2025
3.1.0 185 3/31/2025
3.0.0 185 3/31/2025
2.1.0 476 3/26/2025
2.0.0 312 3/24/2025
1.3.0 292 3/23/2025
1.2.0 306 3/23/2025
1.1.0 271 3/23/2025
1.0.0 286 3/23/2025