chunkList<T> function

List<List<T>> chunkList<T>(List<T> arr, { required int chunkSize, })

Chunk a list into smaller list of a specified size.

Implementation

List<List<T>> chunkList<T>(
  final List<T> arr, {
  required final int chunkSize,
}) {
  return List<List<T>>.generate(
        (arr.length / chunkSize).ceil(),
        (final int index) => [],
      )
      .mapIndexed((final chunkIndex, final chunk) {
        final start = chunkIndex * chunkSize;
        final end = (start + chunkSize > arr.length)
            ? arr.length
            : start + chunkSize;
        return arr.getRange(start, end).toList(growable: false);
      })
      .toList(growable: false);
}