A list chunker written in dart

listchunk.dart

class Chunker<T> {
  Chunker(this.items, this.chunkCount);
  final int chunkCount;
  final List<T> items;
  List<List<T>> chunks() {
    List<List<T>> chunks = [];
    List<T> tempList = [];
    int count = 0;

    for (int i = 0; i <= this.items.length - 1; i++) {
      if (count == this.chunkCount) {
        chunks.add(tempList);
        tempList = [];
        count = 0;
      } else {
        tempList.add(this.items[i]);
        count++;
      }
    }
    if (tempList.length != 0) {
      chunks.add(tempList);
    }
    return chunks;
  }
}

var categories = [
     1,
     2,
     3,
     4,
     5,
     6,
     7,
     8,
     9
];
var chunks = Chunker(categories, 3).chunks();