An extension method to turn a string into a sequence of numbers using .NET 6 Generic Math

AddNumbers.Tests\AddNumbers.Tests.csproj

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  <PropertyGroup>
    <EnablePreviewFeatures>true</EnablePreviewFeatures>
	<ImplicitUsings>enable</ImplicitUsings>
    <TargetFramework>net6.0</TargetFramework>
  </PropertyGroup>
  <ItemGroup>
    <PackageReference Include="Shouldly" Version="4.0.3" />
  </ItemGroup>
  <ItemGroup>
    <ProjectReference Include="../AsNumbers/AsNumbers.csproj" />
  </ItemGroup>
  <ItemGroup>
    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
    <PackageReference Include="xunit" Version="2.4.1" />
    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />
  </ItemGroup>
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AddNumbers.Tests\Tests.cs

using Shouldly;
using Xunit;

namespace AsNumbers.Tests;

public static class Tests
{
    [Fact]
    public static void Convert_Strings_To_Number_Sequences()
    {
        "1,2,3".AsNumbers<int>().ShouldBe(new[] { 1, 2, 3 });

        "1 2 3".AsNumbers<uint>(' ').ShouldBe(new[] { 1U, 2U, 3U });

        "1 2 3".AsNumbers<long>(' ').ShouldBe(new[] { 1L, 2L, 3L });

        "1 2 3".AsNumbers<ulong>(' ').ShouldBe(new[] { 1UL, 2UL, 3UL });

        "1.2|3.4|5.6".AsNumbers<float>('|').ShouldBe(new[] { 1.2F, 3.4F, 5.6F });

        "1.2,,3.4".AsNumbers<double>(options: StringSplitOptions.RemoveEmptyEntries).ShouldBe(new[] { 1.2D, 3.4D });

        "".AsNumbers<int>(options: StringSplitOptions.RemoveEmptyEntries).ShouldBe(Array.Empty<int>());

        "1.2,3.4".AsNumbers<decimal>().ShouldBe(new[] { 1.2M, 3.4M });

        "1,2,3".AsNumbers<ushort>().ShouldBe(new ushort[] { 1, 2, 3 });
    }
}

AsNumbers\AsNumber.csproj

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <EnablePreviewFeatures>true</EnablePreviewFeatures>
    <ImplicitUsings>enable</ImplicitUsings>
    <OutputType>Library</OutputType>
    <TargetFramework>net6.0</TargetFramework>
  </PropertyGroup>
  <ItemGroup>
    <PackageReference Include="System.Runtime.Experimental" Version="6.0.0" />
  </ItemGroup>
</Project>

AsNumbers\StringExtensions.cs

using System.Globalization;

namespace System;

public static class StringExtensions
{
    public static IEnumerable<T> AsNumbers<T>(
        this string value,
        char separator = ',',
        StringSplitOptions options = StringSplitOptions.None,
        NumberStyles style = NumberStyles.Any)
        where T : INumber<T>
        => value.Split(separator, options).Select(x => T.Parse(x, style, CultureInfo.InvariantCulture));
}