frkn2076

using Microsoft.EntityFrameworkCore;
using Microsoft.AspNetCore.Diagnostics;

var builder = WebApplication.CreateBuilder(args);
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
builder.Services.AddDbContext<ApiContext>(opt => opt.UseInMemoryDatabase("SampleDB"));
var app = builder.Build();

app.Use(async (context, next) =>

frkn2076

public class ZipExample
{
    public IEnumerable<(string, string)> Sample1()
    {
        var colors1 = new List<string>() { "Red", "Green", "Blue", "Black" };
        var colors2 = new List<string>() { "Purple", "White", "Blue", "Red" };
        var result = colors1.Zip(colors2);
        //  result = IEnumerable<(string,string)>() { ("Red", "Purple"), ("Green", "White"),  ("Blue", "Blue"), ("Black", "Red") }
        return result;
    }

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public class WhereExample
{
    public IEnumerable<string> Sample1()
    {
        var colors = new List<string>() { "Red", "Green", "Blue", "Black" };
        var result = colors.Where(x => x.Length > 4);
        //  result = IEnumerable<string> { "Green", "Black" }
        return result;
    }

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public class UnionExample
{
    public IEnumerable<string> Sample1()
    {
        var colors1 = new List<string>() { "Red", "Green", "Blue", "Black" };
        var colors2 = new List<string>() { "Purple", "White", "blue", "Red" };
        var result = colors1.Union(colors2);
        //  result = IEnumerable<string>() { "Red", "Green", "Blue", "Black", "Purple", "White", "blue" }
        return result;
    }

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public class UnionByExample
{
    public IEnumerable<string> Sample1()
    {
        var colors1 = new List<string>() { "Red", "Green", "Blue", "Black" };
        var colors2 = new List<string>() { "Purple", "White", "blue", "Red" };
        var result = colors1.UnionBy(colors2, x => x.Substring(0, 2));
        //  result = IEnumerable<string>() { "Red", "Green", "Blue", "Purple", "White", "blue" }
        return result;
    }

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public class TryGetNonEnumeratedCountExample
{
    public (bool, int) Sample1()
    {
        var colors = new List<string>() { "Red", "Green", "Blue", "Black" };
        var result = colors.TryGetNonEnumeratedCount(out int count);
        //  result = true (no iteration needed to find count)
        //  count = 4    (no iteration needed so returned count)
        return (result, count);
    }

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public class ToLookupExample
{
    public ILookup<bool, string> Sample1()
    {
        var colors = new List<string>() { "Red", "Green", "Blue", "Black" };
        var result = colors.ToLookup(x => x.Length > 4);
        //  result = ILookup<bool, string> [ { Key: false, Items: [ "Red", "Blue" ] }, { Key: true, Items: [ "Green", "Black" ] } ]
        return result;
    }

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public class ToListExample
{
    public IEnumerable<string> Sample1()
    {
        IEnumerable<string> colors = new List<string>() { "Red", "Green", "Blue", "Black" };
        var result = colors.ToList();
        //  result = List<string> { "Red", "Green", "Blue", "Black" }
        return result;
    }
}

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public class ToHashSetExample
{
    public HashSet<string> Sample1()
    {
        var colors = new List<string>() { "Red", "Green", "Blue", "Black", "red" };
        var result = colors.ToHashSet();
        //  result = HashSet<string> { "Red", "Green", "Blue", "Black", "red" }
        return result;
    }

frkn2076

public class ToDictionaryExample
{
    public Dictionary<string, string> Sample1()
    {
        var colors = new List<string>() { "Red", "Green", "Blue", "Black", "red" };
        var result = colors.ToDictionary(x => x.Substring(0, 3));
        //  result = Dictionary<string, string> { { Key: "Red", Value: "Red" }, { Key: "Gre", Value: "Green" }, { Key: "Blu", Value: "Blue" }, { Key: "Bla", Value: "Black" }, { Key: "red", Value: "red" } }
        return result;
    }