OwlCore.Extensions

A collection of exceptionally useful extension methods.

Featuring:

• IEnumerable{T}.InParallel - Runs a specific task in parallel from a list of items.

    await items.InParallel(x => x.InitAsync());

• IEnumerable{T}.DistinctBy: .NET Standard 2.0 support for DistinctBy.
• IEnumerable{T}.PruneNull: Quickly remove null values and return a non-nullable cast.
• IList{T}.InsertOrAdd, IList{T}.InsertOrAddRange: Inserts one or more items into an IList{T}, or adds if the index is the size of the list.
• IList{T}.Pop: Removes and returns the last item in the provided list.
• T[].Shuffle, T[].Unshuffle: Shuffles the given array in place using fisher-yates, ensuring that no item remains in the same position.
  • Shuffling returns a "shuffle map" that can be used to map items to their original positions and T[].Unshuffle() the collection.
  • Enables freely modifying the shuffled list. Keep the shuffle map in sync with changes, and you can always T[].Unshuffle() the collection.
• ObservableCollection.Sort: Sort an ObservableCollection using a Comparer{T}.
• SemaphoreSlim.DisposableWaitAsync(): Provides syntactic sugar for releasing a SemaphoreSlim when execution leaves a using statement.

    using (await _myMutex.DisposableWaitAsync())
    {
        // do something inside the mutex.
        // Release happens automatically when execution leaves this `using` statement.
    }

• SynchronizationContext.PostAsync: Asynchronously wait for a SynchronizationContext.Post call to finish.
• CancellationToken.WhenCancelled: Await the cancellation of a token using a task.
• DateTime.ChangeYear, DateTime.ChangeMonth, DateTime.ChangeDay: Return a new DateTime with a changed day, month or year.
• Stream.ReadToNull: Reads a sequence of bytes from a stream until a null byte is read.
• Stream.ToBytes, Stream.ToBytesAsync: Quickly convert a Stream to a byte array.
• ... and more not listed here.

Install

Published releases are available on NuGet. To install, run the following command in the Package Manager Console.

PM> Install-Package OwlCore.Extensions

Or using dotnet

> dotnet add package OwlCore.Extensions

Usage

Simply install the package, add a using statement, and start using the extension methods.

using OwlCore.Extensions;

Financing

We accept donations here and here, and we do not have any active bug bounties.

Versioning

Version numbering follows the Semantic versioning approach. However, if the major version is 0, the code is considered alpha and breaking changes may occur as a minor update.

License

All OwlCore code is licensed under the MIT License. OwlCore is licensed under the MIT License. See the LICENSE file for more details.