ArrayT 0.24.0

.NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. 
dotnet add package ArrayT --version 0.24.0
                    


                    

                
NuGet\Install-Package ArrayT -Version 0.24.0
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="ArrayT" Version="0.24.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="ArrayT" Version="0.24.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="ArrayT" />
                    


                            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 ArrayT --version 0.24.0
                    


                    

                
#r "nuget: ArrayT, 0.24.0"
#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 ArrayT@0.24.0
#: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=ArrayT&version=0.24.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=ArrayT&version=0.24.0
                    


                            Install as a Cake Tool

Logo

ArrayT

ArrayT on nuget.org Build Status Docs Build Status Test Status Check dotnet tools license code size

ArrayT is an F# extension and module library for Array<'T>

It also works in Javascript and Typescript with Fable.

Motivation

I was always annoyed that an IndexOutOfRangeException does not include the actual index that was out of bounds nor the actual size of the array. This library fixes that in array.Get, array.Set, array.Slice and other item access functions.

This library was designed for use with F# scripting.
Functions and methods never return null.
Only functions starting with try... will return an F# Option.
Otherwise when a function fails on invalid input it will throw a descriptive exception.

See also https://github.com/goswinr/ResizeArray/ for a similar library for ResizeArray<'T>.

It Includes:

  • An Array module that has a additional functions to the Array module from FSharp.Core.
    See docs

  • Extension members on Array like
    .Get(idx) .Set(idx,item) .First .Last .SecondLast xs.DebugIdx.[i] and more..
    With nicer IndexOutOfRangeExceptions that include the bad index and the actual size.
    See docs

Usage

Just open the namespace

open ArrayT

this namespace contains:

  • a module also called Array. It will add additional functions to the Array module from FSharp.Core.

  • this will also auto open the extension members on Array<'T>

Example

#r "nuget: ArrayT"
open ArrayT

let xs = [| 0 .. 88 |]

xs.Get(99)

throws

System.IndexOutOfRangeException: Array.Get: Can't get index 99 from:
array<Int32> with 89 items:
  0: 0
  1: 1
  2: 2
  3: 3
  4: 4
  ...
  88: 88

instead of the usual

System.IndexOutOfRangeException: Index was outside the bounds of the array.

If you want to use the index notation xs.[i] instead of the Get method you can use the DebugIdx member

xs.DebugIdx.[i]

Full API Documentation

goswinr.github.io/ArrayT

Tests

All Tests run in both javascript and dotnet. Successful Fable compilation to typescript is verified too. Go to the tests folder:

cd Tests

For testing with .NET using Expecto:

dotnet run

for JS testing with Fable.Mocha and TS verification:

npm test

License

MIT

Changelog

see CHANGELOG.md

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 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. 
.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.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last Updated
0.24.0 83 10/11/2025
0.23.0 192 2/21/2025
0.22.0 142 11/1/2024
0.21.0 136 11/1/2024
0.20.0 144 9/19/2024
0.19.0 151 5/7/2024

### Changed

* - BREAKING CHANGE: Reorder parameters for Array.get and Array.set