C# - elegant way of partitioning a list?

Question

I\'d like to partition a list into a list of lists, by specifying the number of elements in each partition.

For instance, suppose I have the list {1, 2, ... 11}, and

Answer 1

To avoid multiple checks, unnecessary instantiations, and repetitive iterations, you could use the code:

namespace System.Collections.Generic
{
    using Linq;
    using Runtime.CompilerServices;

    public static class EnumerableExtender
    {
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static bool IsEmpty(this IEnumerable enumerable) => !enumerable?.GetEnumerator()?.MoveNext() ?? true;

        public static IEnumerable> Partition(this IEnumerable source, int size)
        {
            if (source == null)
                throw new ArgumentNullException(nameof(source));
            if (size < 2)
                throw new ArgumentOutOfRangeException(nameof(size));
            IEnumerable items = source;
            IEnumerable partition;
            while (true)
            {
                partition = items.Take(size);
                if (partition.IsEmpty())
                    yield break;
                else
                    yield return partition;
                items = items.Skip(size);
            }
        }
    }
}