Dev.Util.Functional 1.2.2

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. .NET Standard 2.0 This package targets .NET Standard 2.0. 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There is a newer version of this package available.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 Dev.Util.Functional --version 1.2.2
                    


                    

                
NuGet\Install-Package Dev.Util.Functional -Version 1.2.2
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="Dev.Util.Functional" Version="1.2.2" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Dev.Util.Functional" Version="1.2.2" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Dev.Util.Functional" />
                    


                            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 Dev.Util.Functional --version 1.2.2
                    


                    

                
#r "nuget: Dev.Util.Functional, 1.2.2"
#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 Dev.Util.Functional@1.2.2
#: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=Dev.Util.Functional&version=1.2.2
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Dev.Util.Functional&version=1.2.2
                    


                            Install as a Cake Tool

Dev.Util.Functional

Functional programming primitives for C#. This package introduces Result<T> and Option<T> patterns to help you write cleaner, exception-free, and safer code.

NuGet Version

📦 Installation

dotnet add package Dev.Util.Functional

✨ Features

  • ✅ Result Pattern: Explicit Success/Failure returns instead of throwing exceptions.
  • ❓ Option/Maybe Type: Safe null handling without the risk of NullReferenceException.
  • ⛓️ Fluent Transformations: Map, Bind, OnSuccess, and Match for clean orchestration.
  • 🛠️ Interop: Easily convert between Result<T> and Option<T>.

🛠 Usage Examples

1. The Result Pattern

Stop using "magic values" or exceptions for expected business logic failures.

using Dev.Util.Functional;

public Result<User> GetUser(int id)
{
    var user = _db.Find(id);
    if (user == null) return Result.Fail<User>("User not found");
    
    return Result.Ok(user);
}

// Consuming the result
var result = GetUser(1);
if (result.IsSuccess) 
{
    Process(result.Value);
}

2. Fluent Railway Chaining

Chain operations that only execute if the previous step succeeded.

using Dev.Util.Functional;

var result = GetUser(1)
    .OnSuccess(user => ValidatePermissions(user))
    .OnSuccess(user => LogAccess(user))
    .Match(
        onSuccess: user => "Welcome " + user.Name,
        onFailure: error => "Error: " + error
    );

3. Safe Null Handling with Option

Enforce the check for presence/absence of a value.

using Dev.Util.Functional;

Option<string> middleName = GetMiddleName();

// Safe extraction
string display = middleName.ValueOr("N/A");

// Functional access
middleName.IfSome(name => Console.WriteLine(name));

4. Mapping Results

Transform the data inside a result while preserving the execution state.

using Dev.Util.Functional;

Result<int> score = GetScore();
Result<string> grade = score.Map(s => s > 50 ? "Pass" : "Fail");

Use Dev.Util.Functional when you want to make "Edge Cases" first-class citizens in your API design.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  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. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

  • .NETStandard 2.0

    • No dependencies.

  • net8.0

    • No dependencies.

  • net9.0

    • No dependencies.

NuGet packages (1)

Showing the top 1 NuGet packages that depend on Dev.Util.Functional:

Package Downloads
Dev.Util

The complete Dev.Util ecosystem for .NET. One package to rule them all. Provides access to Core, Collections, IO, Security, Web, Reflection, Tasks, and Json modules.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
1.4.0 130 1/24/2026
1.3.0 144 1/8/2026
1.2.4 138 1/3/2026
1.2.2 144 12/31/2025
1.2.1 139 12/31/2025
1.2.0 136 12/31/2025