/// <summary>
/// Splits an <see cref="IEnumerable{T}" /> into evenly sized chunks.
/// </summary>
/// <param name="enumerable">The source enumerable.</param>
/// <param name="chunkSize">The size of the chunks to return.</param>
/// <returns>An <see cref="IEnumerable{T}" /> containing other enumerables representing the chunks.</returns>
/// <exception cref="ArgumentNullException">Thrown when <paramref name="enumerable" /> is <see langword="null" />.</exception>
/// <exception cref="ArgumentException">Thrown when <paramref name="chunkSize" /> is less than 1.</exception>
public static IEnumerable <IEnumerable <T> > InChunksOf <T>(this IEnumerable <T> enumerable, int chunkSize)
{
if (enumerable == null)
{
throw new ArgumentNullException(nameof(enumerable));
}
if (chunkSize < 1)
{
throw new ArgumentException("Chunk size must be a positive integer greater than zero",
nameof(chunkSize));
}
return(chunkSize == 1
? enumerable.Select(item => new[] { item })
: IEnumerableExtensions.ChunksImpl(enumerable, chunkSize));
}
