chunked<R> method

Iterable<R> chunked<R>(int size, [ ChunkedTransform<List<T>, R>? transform ])

Splits into a list of lists, each not exceeding the given size.

The last list may have less elements than the given size.

The returned iterable will be lazy, it will only chunk the elements that are requested.

final words = 'one two three four five six seven eight nine ten'.split(' ');
final chunks = words.chunked(3);

print(chunks); // ([one, two, three], [four, five, six], [seven, eight, nine], [ten])

When the transform is given, it will be applied to each list.

final numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
final chunkedAndReversed = numbers.chunked(3, (chunk) => chunk.reversed);

print (chunkedAndReversed); // ([3, 2, 1], [6, 5 ,4], [9, 8 ,7], [10])

Implementation

Iterable<R> chunked<R>(int size, [ChunkedTransform<List<T>, R>? transform]) {
  transform ??= (v) => v as R;

  return _Chunked<T, R>(this, size, transform);
}