Chunk an IEnumerable into fixed-size List batches

using System;
using System.Collections.Generic;

static IEnumerable<List<T>> Chunk<T>(IEnumerable<T> source, int size)
{
    if (size <= 0)
        throw new ArgumentOutOfRangeException(nameof(size));
    var batch = new List<T>(size);
    foreach (var item in source)
    {
        batch.Add(item);
        if (batch.Count < size)
            continue;
        yield return batch;
        batch = new List<T>(size);
    }
    if (batch.Count > 0)
        yield return batch;
}