Kj.Functional.Lib.Extensions 0.1.3

.NET 6.0 This package targets .NET 6.0. The package is compatible with this framework or higher. 
dotnet add package Kj.Functional.Lib.Extensions --version 0.1.3
                    


                    

                
NuGet\Install-Package Kj.Functional.Lib.Extensions -Version 0.1.3
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="Kj.Functional.Lib.Extensions" Version="0.1.3" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Kj.Functional.Lib.Extensions" Version="0.1.3" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Kj.Functional.Lib.Extensions" />
                    


                            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 Kj.Functional.Lib.Extensions --version 0.1.3
                    


                    

                
#r "nuget: Kj.Functional.Lib.Extensions, 0.1.3"
#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 Kj.Functional.Lib.Extensions@0.1.3
#: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=Kj.Functional.Lib.Extensions&version=0.1.3
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Kj.Functional.Lib.Extensions&version=0.1.3
                    


                            Install as a Cake Tool

Welcome to the Functional.Lib.Extensions wiki!

Description

A simple library extending core .net libraries to support functional paradigm using Kj.Functional.Lib. Simplifies usage of most popular methods/routines, like parsing, accessing collections, accessing dictionaries etc.

Code examples

Parsing and validating a number value:

		var result = inputString.TryParseInt() // try parse value
				.Filter(v => v > 0) // filter if value > 0
				.Map(v => v * 2) // multiply valid value by 2
			;

Parsing and validating a date value:

		var result = inputString.TryParseDateTime() // try parse value
			.Filter(d => d.Year > 1999) // validate if year > 1999
			.Map(d => $"valid input date of {d}") // map valid date to output string
			.Or(() => $"Invalid date") // map to another string if anything went wrong
			;

Looking up and validating a dictionary value:

		var dayName = _dayOfWeekNames
			.LookUp(dayNumber)
			.Map(name => $"Day is {name}")
			.Or(() => "Invalid day number");

Trying to find an element in a collection:

		var mapped = _userNames
			.TryFirst(u => u.Name == toFind)
			.Map(u => $"User's age: {u.Age}")
			.Or(() => $"invalid user name");

Using a chain of optional values to create an object:

	public static Option<UserInfo> TryParseUserFromStrings(string inputName, string birthYear, string numberPoints)
	{
		return _createUserFunc(
			inputName.TryParseName(), 
			birthYear.TryParseNumber<int>(), 
			numberPoints.TryParseNumber<double>()
			);
	}
	
	// Optional values are "passed further" in the chained call to finally create an object from all "extracted values" (if present)
	// Any value being empty breaks the chain, leading to a None value being returned instead of the parsed object
	private static readonly
		Func<Either<string, ParseErrorInfo>, Either<int, ParseErrorInfo>, Either<double, ParseErrorInfo>,
			Option<UserInfo>> _createUserFunc =
			(optUserName, optYearOfBirth, optUserPoints) =>
				optUserName.BindResult(name => optYearOfBirth.BindResult(year => optUserPoints.MapResult(
						p => new UserInfo(name, year, p)
					)
				)).AsOption();
Product Compatible and additional computed target framework versions.
.NET net6.0 is compatible.  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 was computed.  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 was computed.  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.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last Updated
0.1.3 1,184 3/2/2022
0.1.2 500 2/21/2022
0.1.0 477 2/21/2022