split<T> static method

List<List<T>> split<T>(List<T> colls, int size)

Split array colls: origin arrays size: split size

Implementation

static List<List<T>> split<T>(List<T> colls, int size) {
  if (colls.isEmpty) {
    return List.empty();
  }
  if (size <= 0) {
    throw ArgumentError('the size must > 0');
  }
  List<List<T>> rets = [];
  List<T> items = [];
  for (var coll in colls) {
    items.add(coll);
    if (size == items.length) {
      rets.add(items);
      items = [];
    }
  }
  if (items.isNotEmpty) {
    rets.add(items);
  }
  return rets;
}