Raccoon.Ninja.Tools 1.2.0

Racoon Ninja Tools

Description

This is a collection of helpers and tools I find useful enough to reuse in multiple projects. I hope this can help other people too. 😃

Changelog

Check the changelog for the latest updates.

Features

Deterministic Guid

The Guid5 class provides a method to generate deterministic GUIDs (UUID v5) based on the input arguments. This means that the same set of input arguments will always produce the same GUID, which can be useful for scenarios where consistent identifiers are needed across different systems or runs.

Example Usage

using Raccoon.Ninja.Tools.Uuid;
using System;

class Program
{
    static void Main()
    {
        // Example with one argument
        Guid guid1 = Guid5.NewGuid("example");
        Console.WriteLine(guid1);

        // Example with multiple arguments
        Guid guid2 = Guid5.NewGuid("example", 123, true);
        Console.WriteLine(guid2);

        // Example with different types of arguments
        Guid guid3 = Guid5.NewGuid("example", DateTime.Now);
        Console.WriteLine(guid3);
    }
}

Performance

Based on the benchmark results, generating a deterministic GUID using the Guid5 class is significantly slower than creating a regular GUID (UUID v4). Here are some key points:

• Creating a regular GUID (RegularGuid) takes approximately 69.41 nanoseconds.
• Generating a GUID with one argument (Guid5WithOneArg) takes approximately 558 nanoseconds, which is about 6 times slower than creating a regular GUID.
• The performance decreases further as more arguments are added or when longer strings are used. For example, generating a GUID with four arguments including a string of 10,000 chars (Guid5WithFourArgsMixedIncLongString).

While the Guid5 class provides the benefit of deterministic GUIDs, it comes with a performance cost compared to generating regular GUIDs.

Keep in mind that we're talking about nanoseconds here, so the performance difference may not be significant, depending on your application, and you have the benefit of deterministic GUIDs.

You can execute the benchmarks yourself by running the Guid5Benchmarks class in the Raccoon.Ninja.Tools.Benchmark.Tests project.

BenchmarkDotNet v0.14.0, Windows 10 (10.0.19045.4780/22H2/2022Update) Intel Core i7-9750H CPU 2.60GHz, 1 CPU, 12 logical and 6 physical cores .NET SDK 8.0.401 [Host] : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2 DefaultJob : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2

List Extensions

The ListExtensions class provides several useful extension methods for working with lists and other enumerable collections.

Methods

SafeAll<T>

Determines whether all elements of a sequence satisfy a condition safely.

Parameters:

• source (IEnumerable<T>): An enumerable to test.
• predicate (Func<T, bool>): A function to test each element for a condition.

Returns:

• bool: True if every element of the source sequence passes the test in the specified predicate. If source is empty or null, returns false.

Example Usage:

var numbers = new List<int> { 1, 2, 3, 4, 5 };
bool allEven = numbers.SafeAll(n => n % 2 == 0); // Output: False

var emptyList = new List<int>();
bool allEvenEmpty = emptyList.SafeAll(n => n % 2 == 0); // Output: False

List<int> nullList = null;
bool allEvenNull = nullList.SafeAll(n => n % 2 == 0); // Output: False

var numbers2 = new List<int> { 2, 4, 6, 8 };
bool allEven2 = numbers2.SafeAll(n => n % 2 == 0); // Output: True

ForEachWithIndex<T>

Returns an iterable list containing every item and its index.

Parameters:

• source (IEnumerable<T>): The target enumerable collection.

Returns:

• IEnumerable<(int index, T item)>: An enumerable containing tuples with the index and item.

Example Usage:

var list = new List<string> { "a", "b", "c" };
foreach (var (index, item) in list.ForEachWithIndex())
{
    Console.WriteLine($"Index: {index}, Item: {item}");
}

ContainsCaseInsensitive

Checks if the source contains the specified string, ignoring case.

Parameters:

• source (IEnumerable<string>): The source of strings to search.
• containsText (string): The string to search for.
• nullValuesAreErrors (bool): If true, null values in the source will be treated as errors and will not match the search string. If false, null values in the source will be ignored.

Returns:

• bool: True if the source contains the specified string (case-insensitive); otherwise, false.

Example Usage:

var list = new List<string> { "Hello", "world" };
bool containsHello = list.ContainsCaseInsensitive("hello");
Console.WriteLine(containsHello); // Output: True

Replace<T>

Replaces the first occurrence of an object in the source.

Parameters:

• source (IList<T>): The source list.
• oldObj (T): The old object to be replaced.
• newObj (T): The new object that will replace the old one.

Returns:

• bool: True if the object is replaced; false if the object is not found in the source.

Example Usage:

var list = new List<int> { 1, 2, 3 };
bool replaced = list.Replace(2, 4);
Console.WriteLine(replaced); // Output: True
Console.WriteLine(string.Join(", ", list)); // Output: 1, 4, 3

String Extensions

The StringExtensions class provides several useful extension methods for working with strings.

Methods

Minify

Minifies a text by replacing spaces, tabs, and line breaks with a single space.

Parameters:

• bigText (string): The text to be minified.

Returns:

• string: The minified text.

Example Usage:

string text = @"This is a   test.

                New line.";
string minifiedText = text.Minify();
Console.WriteLine(minifiedText); // Output: "This is a test. New line."

StripAccents

Removes all diacritics (accents) from a string.

Parameters:

• text (string): The text from which to remove diacritics.

Returns:

• string: The text without diacritics.

Example Usage:

string text = "Café";
string strippedText = text.StripAccents();
Console.WriteLine(strippedText); // Output: "Cafe"

OnlyDigits

Removes everything that is not a digit from a string.

Parameters:

• text (string): The target string.

Returns:

• string: A string containing only digits.

Example Usage:

string text = "Phone: 123-456-7890";
string digits = text.OnlyDigits();
Console.WriteLine(digits); // Output: "1234567890"

Operation Result

The Result<TPayload> class represents the result of an operation, which can either be a success with a payload or a failure with an error. This class provides methods to map and process the result based on its success or failure state.

It's a somewhat functional approach to handling operation results, not fully adhering to the functional programming paradigm but providing some of its benefits.

Example Usage

using Raccoon.Ninja.Tools.OperationResult;
using Raccoon.Ninja.Tools.OperationResult.ResultError;

class Program
{
    static void Main()
    {
        // Example mapping result.
        var result = DoSomething();
        result.Map(
            success => Console.WriteLine($"Success! Here's the result: {success}"), // Only executed if successful
            error => Console.WriteLine($"Oh no! It failed! Error: {error.ErrorMessage}") // Only executed if failed
        );

        // Example processing result and getting an object back.
        var result2 = DoSomethingElseAndReturnPayload();
        var processedPayload = failureResult.Process(
            success => $"Processed: {success}", // Only executed if successful
            failure => $"Failed: {failure.ErrorMessage}" // Only executed if failed
        );
        Console.WriteLine(processedPayload);
    }
}

Performance

Quick update here. I caved in and changed from class to readonly struct. I think the performance benefits, thread safety, and immutability are worth it. Thankfully, this won't affect anyone, because the contracts are the same.

Below are the results of the benchmark tests for instantiating Classes, Struct, Readonly Struct, and Records. I'm aware that they are not the best, but it's good enough for a brief comparison.

To no one's surprise, instantiating a struct or readonly struct is by far the fastest option and won't allocate any memory.

Other

Shamelessly plugging the link to my site: https://raccoon.ninja