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

namespace BITKit
{
    public static partial class Extensions
    {
        public static IEnumerable<TResult> SelectWhere<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, TResult> selector)
        {
            return source.Where(x => selector.Invoke(x) is not null).Select(x => selector.Invoke(x));
        }
    }
}