Remotely/Shared/Extensions/IEnumerableExtensions.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Remotely.Shared.Extensions;

public static class IEnumerableExtensions
{
    public static async IAsyncEnumerable<T> ToAsyncEnumerable<T>(this IEnumerable<T> source)
    {
        foreach (var item in source)
        {
            yield return item;
            await Task.Yield();
        }
    }

    public static int IndexWhere<T>(this IEnumerable<T> source, Func<T, bool> predicate)
    {
        var index = 0;
        foreach (var item in source)
        {
            if (predicate(item))
            {
                return index;
            }
            index++;
        }
        return -1;
    }   
}