ZipItem<I1, I2>.fromList constructor Null safety

ZipItem<I1, I2>.fromList(
  1. List list
)

Creates ZipItem from list of exactly 2

Implementation

factory ZipItem.fromList(List list) {
  if (list.length != 2) {
    throw ArgumentError('To create ZipItem list must be size two');
  }
  return ZipItem(list[0], list[1]);
}